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51N Time-Delayed Earth Fault – Calculated

Overview of Function

Time-delayed earth fault protection is used to provide:

•

Detection of earth current in electrical equipment

•

Backup or emergency protection in addition to other protection functions or devices

•

Coordinated operation with other devices using time graded settings

Structure of the Function

The calculated time‑delayed earth fault element has group dependent settings. These settings can be different
in each settings group – group numbers (Gn) 1 to 4.
This function corresponds to the logical node

A51NPTOC*

in IEC 61850.

The function monitors the primary system earth current by calculating the sum of the 3 phase CT inputs e.g.
CT1/2/3.
The basic instantaneous/time‑delayed calculated earth fault function (51N) is summarized below:

•

Measurement is based on either fundamental or RMS current

•

A number of time versus current operate curves are selectable based on IEC and ANSI standards

•

Alternatively the 51N elements can operate with a definite time‑delayed (DTL) characteristic

•

Outputs are provided for general pickup and trip

The basic function is non-directional, it can be directionalized this requires 3 phase VT inputs e.g. VT1/2/3.
Each 51N element can be set to operate for forward current, reverse current or independently of current direc-
tion. Directionalized functionality uses the decision of the 67N element.

•

Provides information regarding flow direction of earth current for selective application of earth fault
protection

•

Ensures selective fault detection for parallel lines or transformers with infeed at one end

•

Ensures selective fault detection in cable runs with infeed at both ends or in lines connected to form ring
topologies

Where earth fault protection is directionalized correct operation is dependent on valid information being
received from the VT inputs, operation of each directionalized element will be affected if a VT fuse fails. When
a fuse failure is detected, 60VTS function, each element can be selected to either ignore the VT failure, switch
to non-directionalized operation (which does not require VT inputs) or be inhibited.
When installed in power transformer circuits earth currents may be measured by the function during switch in
of the transformer. Each element can be set to be inhibited when inrush current is detected, (see

sion Functions

, section 81HB2 Inrush Current Detection).

Elements can be mapped to start

79 Automatic Recloser

by selection of the element as a

79 EF

Trigger

within the 79 function element menus. For advanced autoreclose applications each element can be

selected to be inhibited during delayed autoreclose shots of a multi-shot sequence.

5.16

5.16.1

5.16.2

Protection and Automation Functions

5.16 51N Time-Delayed Earth Fault – Calculated

Reyrolle 7SR5, Transformer Protection Device, Device Manual

255

C53000-G7040-C015-1, Edition 11.2019

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Summary of Contents for Reyrolle 7SR5

Page 1: ...en Source Software Table of Contents Introduction 1 Basic Structure of the Device Functionality 2 Device Functionality 3 7SR54 Function Templates 4 Protection and Automation Functions 5 Supervision Functions 6 Control Functions 7 Instruments and Meters 8 Functional Tests 9 Technical Data 10 Appendix A ...

Page 2: ...f further development of the products The requested performance features are binding only when they are expressly agreed upon in the concluded contract Document version C53000 G7040 C015 1 01 00 Edition 11 2019 Version of the product described V01 00 Copyright Copyright Siemens 2019 All rights reserved The disclosure duplication distribution and editing of this document or utilization and communic...

Page 3: ..._furtherdocumentation_devicemanual 1 en_US Device manuals Each device manual describes the functions and applications of a specific Reyrolle 7SR54 device The printed manual for the device has the same informational structure Hardware manual The hardware manual describes the hardware building blocks and device combinations of the Reyrolle 7SR54 device family Operating manual The operating manual de...

Page 4: ...yrolle 7SR54 Selection guide for Reyrolle and SIPROTEC The selection guide offers an overview of the device series of the Siemens protection devices and a device selection table Indication of Conformity This product is CE compliant to relevant EU directives Additional Support For questions about the system contact your Siemens sales partner Customer Support Center Our Customer Support Center provi...

Page 5: ...e device described in this document Qualified electrical engineering personnel in the sense of this manual are people who can demonstrate technical qualifications as electrical technicians These persons may commission isolate ground and label devices systems and circuits according to the standards of safety engineering Proper Use The equipment device module may be used only for such applications a...

Page 6: ...bited Before disconnecting the equipment ensure that the current transformer circuits are short circuited The limiting values stated in the document must not be exceeded This must also be considered during testing and commissioning Terminals are exposed when the device element is removed from the case Preface 6 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 1...

Page 7: ...he applicable Open Source Software License Conditions provide for it you can order the source code of the Open Source Software from your Siemens sales contact against payment of the shipping and handling charges for a period of at least 3 years after purchase of the product We are liable for the product including the Open Source Software contained in it pursuant to the license conditions applicabl...

Page 8: ...8 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 9: ...2 3 Logic of the Function 46 3 2 4 Application and Setting Notes 46 3 2 5 Settings Menu 53 3 2 6 IEC 61850 Functional Information Mapping 55 3 3 CT and VT Inputs 57 3 3 1 Overview of Functions 57 3 3 2 Structure of the Function 57 3 3 3 Application and Setting Notes 57 3 3 4 Settings Menu 64 3 4 Binary Inputs 65 3 4 1 Overview of Functions 65 3 4 2 Structure of the Function 65 3 4 3 Logic of the F...

Page 10: ... 130 4 7SR54 Function Templates 133 4 1 Introduction 134 4 2 Function Groups and Function Elements 135 4 3 Function Configuration 139 4 3 1 Overview of the Function 139 4 3 2 Structure of the Function 139 4 3 3 Logic of the Function 139 4 3 4 Application and Setting Notes 139 4 3 5 Settings Menu 139 4 3 6 Information List 141 5 Protection and Automation Functions 143 5 1 21LB Load Blinder 144 5 1 ...

Page 11: ...5 5 3 Logic of the Function 172 5 5 4 Application and Setting Notes 172 5 5 5 Settings Menu 173 5 5 6 IEC 61850 Functional Information Mapping 174 5 5 7 Information List 175 5 6 37G Undercurrent Earth Fault Measured 177 5 6 1 Overview of Functions 177 5 6 2 Structure of the Function 177 5 6 3 Logic of the Function 177 5 6 4 Application and Setting Notes 177 5 6 5 Settings Menu 178 5 6 6 IEC 61850 ...

Page 12: ...rrent Phase 204 5 11 1 Overview of Functions 204 5 11 2 Structure of the Function 204 5 11 3 Logic of the Function 205 5 11 4 Application and Setting Notes 206 5 11 5 Settings Menu 209 5 11 6 IEC 61850 Functional Information Mapping 210 5 11 7 Information List 213 5 12 50G Instantaneous Earth Fault Measured 214 5 12 1 Overview of Functions 214 5 12 2 Structure of the Function 214 5 12 3 Logic of t...

Page 13: ...enu 260 5 16 6 IEC 61850 Functional Information Mapping 261 5 16 7 Information List 263 5 17 59N Neutral Voltage Displacement 264 5 17 1 Overview of Functions 264 5 17 2 Structure of the Function 264 5 17 3 Logic of the Function 265 5 17 4 Application and Setting Notes 266 5 17 5 Settings Menu 267 5 17 6 IEC 61850 Functional Information Mapping 268 5 17 7 Information List 270 5 18 59Vx Overvoltage...

Page 14: ...310 5 22 4 Application and Setting Notes 313 5 22 5 Settings Menu 330 5 22 6 IEC 61850 Functional Information Mapping 332 5 22 7 Information List 336 6 Supervision Functions 339 6 1 50BF Circuit Breaker Failure Protection 3 Pole 340 6 1 1 Overview of Functions 340 6 1 2 Structure of the Function 340 6 1 3 Logic of the Function 341 6 1 4 Application and Setting Notes 341 6 1 5 Settings Menu 343 6 1...

Page 15: ... 6 6 5 Settings Menu 367 6 6 6 IEC 61850 Functional Information Mapping 367 6 6 7 Information List 368 7 Control Functions 369 7 1 Device Control Functions 370 7 1 1 Overview of Functions 370 7 1 2 Structure of the Function 370 7 1 3 IEC 61850 Functional Information Mapping 373 7 2 52 Circuit Breaker Control 381 7 2 1 Overview of Function 381 7 2 2 Structure of the Function 381 7 2 3 Logic of the ...

Page 16: ... 50N 51N Calculated Earth Fault 435 9 10 14 51CL Cold Load Overcurrent Phase 438 9 10 15 51V Voltage Dependent Overcurrent Phase 440 9 10 16 59 Overvoltage Protection 3 Phase 441 9 10 17 59N Neutral Voltage Displacement 441 9 10 18 59Vx Overvoltage Protection Vx 442 9 10 19 67 Directional Overcurrent Phase 443 9 10 20 67G 67GS 67N Directional Earth Fault 445 9 10 21 81 Frequency Protection f or f ...

Page 17: ...0 Instantaneous Overcurrent Phase 473 10 13 50BF Circuit Breaker Failure Protection 3 Pole 474 10 13 1 50BF Circuit Breaker Failure Protection 3 Pole 474 10 13 2 50BF I4 Circuit Breaker Failure Protection 3 Pole 475 10 14 50G Instantaneous Earth Fault Measured 477 10 15 50N Instantaneous Earth Fault Calculated 478 10 16 51 Time Delayed Overcurrent Phase 479 10 17 51G Time Delayed Earth Fault Measu...

Page 18: ...2 1 Common Settings 499 10 32 2 Transformer Differential Protection Biased 499 10 33 87T HS Transformer Differential Protection Highset 500 10 33 1 Common Settings 500 10 33 2 Transformer Differential Protection Highset 500 A Appendix 501 A 1 Ordering Information 502 A 2 Current Transformer Connections 503 A 3 Voltage Transformer Connections 504 Table of Contents 18 Reyrolle 7SR5 Transformer Prote...

Page 19: ...5_size12_FrontPhoto 1 _ CAUTION Current Transformer Circuits The secondary circuit of a live CT must not be open circuited Non observance of this precaution can result in injury to personnel or damage to equipment 1 Reyrolle 7SR5 Transformer Protection Device Device Manual 19 C53000 G7040 C015 1 Edition 11 2019 ...

Page 20: ...nc tionalities across the device series Modular system design in hardware software and communication Functional integration of various applications such as protection control and fault recorder Consistent functionality across the entire family of devices Upgrade path using software libraries and updates Flexible hardware architecture Self monitoring routines for device faults General Properties Fu...

Page 21: ...BO 3 1 5 CPU Data Comms 11 Standard 1 x USB front RS485 rear ports plus 2 x RJ45 ports 1 2 x Optical LC ports 2 Case Fascia Housing width 2 3 x 19 size 12 Housing height 4U The multifunctional 7SR5 protection devices digitally process all tasks from acquisition of the measurands to controlling the circuit breaker Front Fascia The fascia Light Emitting Diodes LEDs and Liquid Crystal Display LCD pro...

Page 22: ...dent and can be connected as required by the application Binary Inputs and Outputs 7SR5 devices include a number of binary input functions categorized as Voltage operated binary inputs Virtual inputs outputs see also binary outputs in following list Function key binary inputs General alarms Binary output functions are categorized as Binary output relays Virtual inputs outputs see also binary input...

Page 23: ...ons using user selectable proto cols Redundant ethernet communication interfaces Redundant and independent protocols to control centers possible such as IEC 61850 sc_7SR5_Size12_rear 1 _ Introduction Reyrolle 7SR5 Transformer Protection Device Device Manual 23 C53000 G7040 C015 1 Edition 11 2019 ...

Page 24: ...24 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 25: ...nality 2 1 Introduction 26 2 2 Analogue Inputs 27 2 3 Function Groups and Function Elements 29 2 4 Device Startup 33 2 5 Real Time Clock 35 2 Reyrolle 7SR5 Transformer Protection Device Device Manual 25 C53000 G7040 C015 1 Edition 11 2019 ...

Page 26: ...in each FG there may be a number of Func tion Elements FE 7SR54 transformer devices include a number of FG each containing a number of FE The maximum function ality is tabulated in Figure 2 6 Figure 2 7 Figure 2 8 and Figure 2 9 7SR5 device function groups and elements can be added or removed only by using the Reydisp Manager 2 RM2 software configurator tool FG and FE that have been included from ...

Page 27: ...alogue input connections for a 7SR5421 two winding transformer protection device is summarized in Figure 2 1 dw_7SR5_7SR54DeviceAnalogueInputConnections 1 en_US Figure 2 1 7SR54 Device Analogue Input Connections The analogue input configuration for a 7SR5420 transformer device is summarized in Figure 2 2 dw_7SR5_7SR5420DeviceCTVTInputConfiguration 1 en_US Figure 2 2 7SR5420 Device CT VT Input Conf...

Page 28: ...431DeviceCTVTInputConfiguration 1 en_US Figure 2 5 7SR5431 Device CT VT Input Configuration Interface Between Function Elements and Measuring Inputs The functions receive the appropriate measuring inputs from the current and voltage transformers as summar ized in Figure 2 2 Figure 2 3 Figure 2 4 and Figure 2 5 The measuring inputs current and voltage inputs are parametrized in the Device Configura...

Page 29: ...onality that is not dependent on analogue input quantities is common to all 7SR54 devices is not shown in the figures below these include CB and plant control Trip close circuit supervision Autoreclose functionality User logic schemes Example 7SR542 The 7SR542 transformer application templates are summarized in Figure 2 6 and Figure 2 7 dw_7SR5_7SR5420ApplicationTemplate 1 en_US Figure 2 6 Applica...

Page 30: ...vices Example 7SR543 The 7SR543 transformer application templates are summarized in Figure 2 8 and Figure 2 9 Basic Structure of the Device Functionality 2 3 Function Groups and Function Elements 30 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 31: ...n_US Figure 2 8 Application Templates for 7SR5430 Devices Basic Structure of the Device Functionality 2 3 Function Groups and Function Elements Reyrolle 7SR5 Transformer Protection Device Device Manual 31 C53000 G7040 C015 1 Edition 11 2019 ...

Page 32: ...ew device is created in RM2 Custom Function Template To ensure that the device functionality is viewed clearly and to facilitate parameterization it is recommended that the user compiles a customized function template CFT in the RM2 tool The CFT need only include the functionality that will be used by the application and typically includes only a part of the total functionality available in the de...

Page 33: ...utton Using the or keys will then increase or decrease the brightness The following messages are displayed on the bottom of the screen Starting File System Starting Software 7SR5xx FW Vxx xx CFG Vxx xx On the last display a progress bar is displayed to show the progress the sequence is running On completion the device validates and runs the firmware and completes the start up sequence The device d...

Page 34: ...ation that the IEC 61850 has been configured The IEC 61850 Configured Alert parameter located in the Configuration Device menu can be Enabled to provide a screen alert message The message should be Disabled for non IEC 61850 applications The IEC 61850 Not Configured parameter is in the Binary Output matrix for mapping to a binary output LED and or virtual signal i i NOTE The IEC 61850 Not Configur...

Page 35: ...onds are zeroed and the clock begins running In the event of loss of auxiliary power the real time clock is powered from a back up storage capacitor Setting the Time Source Parameters for 2 main clocks can be set in a device using the device settings If a communication protocol with time synchronization possibilities is available in a device then the time sources can be configured as desired sc_7S...

Page 36: ...ll be reset to 0 and the time is adjusted to the nearest minute Time Server in the Network For time synchronization via Ethernet according to Simple Network Time Protocol SNTP a time server must be present in the network 1 or 2 time servers are supported This time server must also be able to address the different time requirements of the devices as defined in SNTP Time servers can be reached throu...

Page 37: ...rst server will also be taken if the Stratum is 0 or greater than 3 or the second server offers a better Stratum The announcement of a time disturbance signal works purely from the view of the device It will only be announced if the device is no longer synchronized from the module For the redundant NTP client on the module this means that the announcement of the time disturbance signal will not be...

Page 38: ...P3 or IEC 60870 5 103 the time zone of the time source must be identical i i NOTE If a time zone for time synchronization is from SNTP the time zone of the time source from the serial protocol must be identical as the offset and daylight saving rules will not be applied by the device Basic Structure of the Device Functionality 2 5 Real Time Clock 38 Reyrolle 7SR5 Transformer Protection Device Devi...

Page 39: ...e Configuration 46 3 3 CT and VT Inputs 57 3 4 Binary Inputs 65 3 5 Binary Outputs 77 3 6 Data Storage 94 3 7 Data Communications 121 3 8 Quick Logic 127 3 Reyrolle 7SR5 Transformer Protection Device Device Manual 39 C53000 G7040 C015 1 Edition 11 2019 ...

Page 40: ... Device and system information is viewable on the 128 x 128 liquid crystal display LCD The device Home Screen is the starting point from which the required menus are accessed using the fascia navigation keys See the Operations manual for full details The user can return to the Home Screen by pressing the Cancel button several times from anywhere within the menu structure When the required device p...

Page 41: ...section 3 2 Device Configuration The LCD is user configurable and can include graphics symbols to illustrate the associated primary plant For further details refer to the Engineering Guide The device fascia display and navigation keys can be used to view and analyze the instruments and selected data Stored data can be viewed and analyzed using RM2 see 3 6 Data Storage In service indications for th...

Page 42: ...s provided between the 2 columns of LEDs this can be customized using the Relay LED Label Template utility LED operation is configured in the Configuration Binary Outputs LED Config menu see 3 5 Binary Outputs dw_7SR5_LEDLabelTemplate 1 en_US Figure 3 2 Example LED Template 3 1 2 Device Functionality 3 1 Device Fascia 42 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1...

Page 43: ...u ration CT VT see 3 3 CT and VT Inputs Binary inputs see 3 4 Binary Inputs Binary outputs see 3 5 Binary Outputs Maintenance Output matrix test Data storage see 3 6 Data Storage Demand data log Waveform storage Fault storage Event storage Communications see 3 7 Data Communications Quick logic see 3 8 Quick Logic Functions Function Template Function config Protection Fnct group Function element 1 ...

Page 44: ... can be configured using the Reydisp software tool Settings Parameter changes can be entered from the device fascia These can be for the Function Groups FG or Function Elements FE i e the Settings Function menus 4 settings groups are provided for each function Group number Gn 1 to 4 i i NOTE Where the Setting Confirmation ID has been enabled this must be entered to allow changes At any 1 time only...

Page 45: ...e only in English Control Mode Menu This mode provides convenient access to commonly used relay control and test functions When any of the items highlighted in the control menu are selected control is initiated by pressing the Enter key The user is prompted to confirm the action again by pressing the Enter key before the command is executed i i NOTE Control ID access code entry may be necessary to...

Page 46: ...erating modes including settings meters fault and alarm alerts Time setting and methods of time synchronizing Local remote and in service operating modes User identification Logic of the Function lo_7SR5_DeviceConfiguration_OperatingMode 1 en_US Figure 3 3 Device Configuration Operating Mode Application and Setting Notes Parameter System Frequency Default Setting 50 Hz This setting is selected to ...

Page 47: ...le memory Parameter View Edit Group Default Setting 1 Gn1 Settings in the selected group Gn can be viewed and edited where required Parameter Setting Dependencies Default Setting Enabled When enabled the relay displays settings information for the enabled functions only This reduces the amount of information in the settings screens as the functionality not being used is not shown Using setting dep...

Page 48: ...ter than the setting Parameter CT 1 2 3 Setting Display Default Setting Nom The user can view current settings in the selected units Parameter CT 4 Setting Display Default Setting Nom The user can view current settings in the selected units Parameter Master Time Source Default Setting Ethernet This setting is used to synchronize the real time clock to a reference source Parameter Clock Sync from B...

Page 49: ...on 1 en_US Figure 3 4 Energy Direction Convention Setting either the Export Power W or Lag VAr VAr to be ve will reverse the direction of the energy transfer for these quantities So forward VAr will then be reported as Imported Reactive Energy and forward Watts will be reported as Exported Active Energy See also Power Protec tion 32 and Power Factor 55 function elements Device Functionality 3 2 De...

Page 50: ... Rear RS485 port set as Remote Enabled Disabled Disabled Rear RS485 port set as Local Disabled Enabled Disabled Rear ethernet ports set as Remote Enabled Disabled Disabled Rear ethernet ports set as Local Disabled Enabled Disabled Fascia Control mode Disabled Enabled Disabled Front USB port set as Remote Enabled Disabled Disabled Front USB port set as Local Disabled Enabled Disabled Control and te...

Page 51: ...ecords or Fault Records to non volatile disk storage is taking place This symbol is displayed when this setting is enabled Binary outputs can also be energized during periods of device or waveform archiving The inverted A symbol at the top right position of the LCD indicates that new Events Waveform Records or Fault Records are currently being held in volatile RAM and have not yet been archived Pa...

Page 52: ... General Alarm Set Default Setting Enabled When set to Enabled the fascia automatically displays the General Alarm screen when a binary output configured as a General Alarm operates see Binary Inputs General Alarms When set to Disabled the General Alarm screen is not automatically displayed on the LCD after operation of a General Alarm binary input This setting is typically used during testing and...

Page 53: ...quires the Reset Confirmation ID 0000 to be entered The maintenance and connection passwords can be set and modified only through EN100 Web UI The passwords can also be reset from the fascia using the Reset Password feature The following table shows the passwords used in device EN100 for security functions Password Description Maintenance Password for EN100 firmware upgrade via Ethernet or USB Fir...

Page 54: ...e ve Select group mode Edge triggered level triggered Edge triggered Clock sync from BI None seconds minutes None Operating mode Out of service local remote local or remote Local or remote Disk activity symbol Enabled Disabled Disabled Unexpected Restart blocking Enabled Disabled Disabled Unexpected restart count 1 to 20 3 Unexpected restart period 1 hr to 100 hr 1 hr Device restart count type 111...

Page 55: ...ED 4 OFF 5 LLN0 Health Information Device Healthy 0 1 LLN0 Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 LLN0 SGCB Information Active SettingGroup Group 1 to 4 LLN0 SGCB ActSG Value Device LPHD1 LPHD1 Proxy Information Reset Device 0 1 PTOC Health stVal 1 0 3 2 6 Device Functionality 3 2 Device Configuration Reyrolle 7SR5 Transformer Protection D...

Page 56: ...ROXY 1 LPHD1 Health Information Device Healthy 0 1 PTOC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 Device Functionality 3 2 Device Configuration 56 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 57: ...bered CT and VT inputs are grouped together and have the same group of configuration parameters e g CT1 2 3 and VT1 2 3 The fourth input has separate configuration parameters e g CT4 and VT4 Typical connections are shown in Figure 3 5 dw_7SR5_7SR54DeviceAnalogueInputConnections 1 en_US Figure 3 5 Typical CT and VT Input Connections for 2 Winding Transformer Protection Application and Setting Notes...

Page 58: ...elect the device CT input measuring range for the 3 line CT inputs The setting value is used by the device instrumentation e g to display Irated values Parameter CT9 10 11 Ratio Prim Default setting 1A The setting value is used in conjunction with CT9 10 11 Ratio Sec setting by the device instrumen tation e g to display primary current values Parameter CT9 10 11 Ratio Sec Default setting 1 The set...

Page 59: ...isplay primary current values Parameter CT8 Ratio Sec Default setting 1 The setting value is used in conjunction with CT8 Ratio Prim setting by the device instrumentation e g to display primary current values Parameter CT12 Nominal Default setting 2000 This setting is used to select the device CT input measuring range for CT12 inputs The setting value is used by the device instrumentation e g to d...

Page 60: ..._US Figure 3 6 Illustration of CT Connections for a 2 Winding Transformer Typical Parameter VT1 2 3 Ratio Prim Default setting 132000 V The setting value is used in conjunction with VT1 2 3 Ratio Sec setting by the device instrumenta tion e g to display primary voltage values Device Functionality 3 3 CT and VT Inputs 60 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 ...

Page 61: ...iate to the switchgear VT connections The VT connections and required settings are illustrated in Figure 3 7 Note that the switchgear VT connection may affect the functionality that can be used in the device on the system e g The VT1 2 3 configuration Va Vb Vc in Figure 3 7 does not allow zero sequence voltage V0 to be measured and so functions requiring this quantity cannot be used when this VT c...

Page 62: ...ue is used in conjunction with VT1 2 3 Ratio Prim setting by the device instrumen tation e g to display primary voltage values Device Functionality 3 3 CT and VT Inputs 62 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 63: ...by the device instrumen tation e g to display primary voltage values lo_7SR5_VTConnections 1 en_US Figure 3 7 Illustration of VT Configuration Settings and VT Connections Typical Device Functionality 3 3 CT and VT Inputs Reyrolle 7SR5 Transformer Protection Device Device Manual 63 C53000 G7040 C015 1 Edition 11 2019 ...

Page 64: ...A CT4 Ratio Sec 0 2 to 7 1 CT8 Nominal 1 A 5 A 1 A CT8 Ratio Prim 000000 to 999999 2000 A CT8 Ratio Sec 0 2 to 7 1 CT12 Nominal 1 1 A 5 A 1 A CT12 Ratio Prim 1 000000 to 999999 2000 A CT12 Ratio Sec 1 0 2 to 7 1 VT1 2 3 Ratio Prim 2 000000 to 999999 132000 V VT1 2 3 Ratio Sec 2 40 V to 160 V 110 V VT1 2 3 Nominal 2 40 V to 160 V 63 5 V VT1 2 3 Trim Magnitude 2 0 V to 20 V 0 V VT1 2 3 Trim Angle 2 ...

Page 65: ... the Binary Inputs Binary Input Config menu The operating voltage for all binary inputs is selected Each binary input can be individually configured to inverted operation and have operating pick up and drop off delays The function of each binary input or virtual input output when operated is set in the Binary Inputs Input Matrix menu The input matrix defines the internal logic signals that are cre...

Page 66: ...InputConfiguration 1 en_US Figure 3 8 Logic Diagram Voltage Operated Binary Input Configuration 3 4 3 Device Functionality 3 4 Binary Inputs 66 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 67: ...5_BinaryInputMatrix 1 en_US Figure 3 9 Logic Diagram Binary Input Matrix Device Functionality 3 4 Binary Inputs Reyrolle 7SR5 Transformer Protection Device Device Manual 67 C53000 G7040 C015 1 Edition 11 2019 ...

Page 68: ...ion occurs before the pickup and drop off time delays are applied Parameter Pickup Delay Default Setting 0 02 s Each binary input can be independently set to operate after the operate voltage is applied plus a time delay The inputs have a default pickup delay setting of 20 ms which provides security against operation in the presence of AC voltage across the input terminals e g induced AC voltage o...

Page 69: ... element from a MCB connected in the VT secondary circuit see 6 Supervision Functions section 60VTS VT Supervision Parameter Ext Reset 60VTS Default Setting Used to reset the VT supervision function 60VTS when a VT failure condition no longer exists see 6 Supervision Functions section 60VTS VT Supervision Parameter 50BF n CB Faulty Default Setting None This input is connected to the CB monitoring ...

Page 70: ...tting None Operation of the binary input is used to initiate a CB open command see 7 Control Functions section 52 Circuit Breaker Control Parameter Close CB Default Setting Operation of the binary input is used to initiate a CB close command see 7 Control Functions section 52 Circuit Breaker Control Parameter Inhibit CB n Open Default Setting None This setting is used to block the opening of a CB ...

Page 71: ...igger Wave Rec Default Setting None This setting is used to trigger the waveform recorder on demand Typically this is triggered on circuit switch using a binary input operated from a CB auxiliary switching or during periods of maintenance monitoring testing Parameter Select Group n n 1 to 4 Default Setting None This setting switches the device settings to the nominated settings group number Gn The...

Page 72: ...s setting are intended for use with external arc sensors they are operated by the detection of an arc caused by a system short circuit fault see 5 Protection and Automation Functions section 50AFD Arc Flash Detection Device Functionality 3 4 Binary Inputs 72 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 73: ... Trip Trigger I2t CB n Wear Reset CB n Trip Time 79 Trip Reclose 79 Trip Lockout 79 Ext Trip 79 Lockout 79 Reset Lockout 79 SOTF 79 Block Reclose General Alarm n Reset Demand Out of Service Mode Local Mode Remote Mode Local or Remote Mode E F Out E F In Trigger Waveform Rec Trig Trip Contacts Trigger Fault Rec Select Group n Clock Sync Reset LEDs O Ps Reset AFD Counters AFD Zone n Flash 50SOTF 3 4...

Page 74: ...eneral Alarm 8 16 characters maximum ALARM 8 General Alarm 9 16 characters maximum ALARM 9 General Alarm 10 16 characters maximum ALARM 10 General Alarm 11 16 characters maximum ALARM 11 General Alarm 12 16 characters maximum ALARM 12 General Alarm 13 16 characters maximum ALARM 13 General Alarm 14 16 characters maximum ALARM 14 General Alarm 15 16 characters maximum ALARM 15 General Alarm 16 16 c...

Page 75: ...Health Information Device Healthy 0 1 BIGGIO1 Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 BIGGIO1 Ind Information Binary I P Status 0 1 BIGGIO1 Ind stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Values of 1 to max number of BI IEC 61850 Value ON 1 OFF 0 3 4 6 Device Functionality 3 4 Binary Inputs Reyrolle 7SR5 Transformer Protection Devic...

Page 76: ...ation Device Healthy 0 1 VGGIO1 Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 VGGIO1 Ind Information Virtual Status 0 1 VGGIO1 Ind stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Values of 1 to 20 IEC 61850 Value ON 1 OFF 0 Device Functionality 3 4 Binary Inputs 76 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 ...

Page 77: ... remain in the reset state unless the initiating condition is still present The status of virtual inputs outputs is volatile i e is not stored during power loss The operating parameters for each LED are defined in the LED Config menu This function corresponds to the logical node CTRL LGGIO in IEC 61850 Each LED can be programmed to be illuminated as either green yellow or red Where an LED is progr...

Page 78: ...unction lo_7SR5_BinaryOutputConfiguration 1 en_US Figure 3 11 Binary Output Configuration lo_7SR5_LEDConfiguration 1 en_US Figure 3 12 LED Configuration 3 5 3 Device Functionality 3 5 Binary Outputs 78 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 79: ...o_7SR5_BinaryOutputMatrix 1 en_US Figure 3 13 Binary Output Matrix Device Functionality 3 5 Binary Outputs Reyrolle 7SR5 Transformer Protection Device Device Manual 79 C53000 G7040 C015 1 Edition 11 2019 ...

Page 80: ... 1 en_US Figure 3 14 General Pickup lo_7SR5_TripConfig 1 en_US Figure 3 15 Trip Config Device Functionality 3 5 Binary Outputs 80 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 81: ... stream device The relay will then reset and attempt to interrupt trip coil current flowing through an output contact Where this level is above the break rating of the output contact an auxiliary relay with heavy duty contacts should be utilized in the primary system Parameter Binary Output Config Min Operate Time Default Setting 0 1 s This time is initiated from the pickup of a self reset or puls...

Page 82: ...Outputs LED Config PU Green LEDs PU Red LEDs Default Setting All Green All Red The selected LEDs will operate when the initiating pickup condition is present The LED resets when the initiating condition is removed Whilst the LED is operated only for the pickup state prior to the operate state it will be illuminated in the programmed PU color When selected to both green and red the LED will illumin...

Page 83: ...on sequence when enabled Parameter Binary Outputs Trip Config Trip Triggered Default Setting None Operation of the selected LEDs or virtual I Os is initiated when a binary input configured as a Trip Contact operates This provides a logic signal from the trip signal that can be used to provide indication that a trip has occured i i NOTE Where the Trip Triggered is not configured then the Trip Alert...

Page 84: ...active Imp Pulse 21LB 3Ph Fwd 21LB 3Ph Rev 21LB 1Ph Fwd 21LB 1Ph Rev 60VTS 27 n 27 PhA 27 PhB 27 PhC 27Vx n 32 n 37 n 37 PhA 37 PhB 37 PhC 37G n 46DT n 46IT n 46BC n 47 n 49 n Trip 49 n Alarm 50 n 50G n Wattmetric Po 50GS n 50N n 50AFD Ph A 50AFD Ph B 50AFD Ph C 50GAFD AFD Zone n AFD Zone n Flash 50CL Active 3 5 5 Device Functionality 3 5 Binary Outputs 84 Reyrolle 7SR5 Transformer Protection Devi...

Page 85: ...se CB Pulse CB Fail to Close Close CB Blocked Open CB Pulse CB Fail to Open CB Alarm CB Total Trip Count CB Delta Trip Count CB Trip Time Alarm 50BF Delay n 50BF PhA 50BF PhB 50BF PhC 50BF EF 74TCS n 74CCS n CB I2t Wear General Pickup Waveform Archiving Device Archiving New Fault Stored New Wave Stored Master Clock Lost Device Functionality 3 5 Binary Outputs Reyrolle 7SR5 Transformer Protection D...

Page 86: ...ocal Mode Remote Mode Local or Remote Mode Device Restart Count Alarm Ethernet Life Ethernet Error IEC61850 Configured IEC61850 Time Invalid Ethernet Ch1 Link Down Ethernet Ch2 Link Down Binary Outputs Binary Outputs Config Parameter Range Default Setting Setting Hand Reset Outputs BO 1 to BO n none Min Operate Time n 0 to 2 s Δ 0 01 s 2 to 20 s Δ 0 1 s 20 to 60 s Δ 1 s 0 1 s Pickup Outputs BO 1 t...

Page 87: ... 49 Pickups 50 Pickups 51 Pickups 50G Pickups 51G Pickups 50N Pickups 51N Pickups 50GS Pickups 51GS Pickups 50SOTF Pickups 59 Pickups 78 Pickups 81 Pickups 87 Pickups Binary Outputs Trip Config Parameter Range Default Setting Setting Trip Contacts BO 1 to BO n none Trip Triggered L1 to Ln V1 to Vn none IEC 61850 Functional Information Mapping Binary Output Relays BOGGIO1 Mod Information Reset Devi...

Page 88: ...0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 BOGGIO1 Ind Information Binary O P Status 0 1 BOGGIO1 Ind stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Values of 1 to max number of available BO in the device IEC 61850 Value ON 1 OFF 0 LGGIO1 Mod Information Reset Device x LGGIO1 Mod stVal 1 Device Functionality 3 5 Binary Outputs 88 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G...

Page 89: ... ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 LGGIO1 Ind Information LED Status 0 1 LGGIO1 Ind stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Values of 1 to 28 IEC 61850 Value ON 1 OFF 0 PTRC1 Mod Information Device Ready 0 1 PTRC1 Mod stVal 0 1 Device Functionality 3 5 Binary Outputs Reyrolle 7SR5 Transformer Protection Device Device Manual 89 C53000 G7040 C015 1 Edition 11 2...

Page 90: ... 2 Operated 0 1 50 3 Operated 0 1 50 4 Operated 0 1 50G 1 Operated 0 1 50G 2 Operated 0 1 50G 3 Operated 0 1 50G 4 Operated 0 1 50GS 1 Operated 0 1 50GS 2 Operated 0 1 50GS 3 Operated 0 1 50GS 4 Operated 0 1 50GSOTF 1 Operated 0 1 50GSOTF 2 Operated 0 1 50N 1 Operated 0 1 50N 2 Operated 0 1 50N 3 Operated 0 1 50N 4 Operated 0 1 50SOTF 1 Operated 0 1 50SOTF 2 Operated 0 1 51 1 Operated 0 1 51 2 Ope...

Page 91: ... 87T BD Operated 0 1 87T HS Operated 0 1 PTRC1 Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value FALSE 0 TRUE 1 i i NOTE The information in the previous table is dependent on device configuration PTRC1 Str Information General picked up Elements as configured in general pickup menu 0 1 PTRC1 Str general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value FALSE 0 TRU...

Page 92: ...nputs Outputs VGGIO1 Mod Information Reset Device x VGGIO1 Mod stVal 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 VGGIO1 Health Information Device Healthy 0 1 VGGIO1 Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 Device Functionality 3 5 Binary Outputs 92 Reyrolle 7SR5 Transfor...

Page 93: ...VGGIO1 Ind stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Values of 1 to 20 IEC 61850 Value ON 1 OFF 0 Device Functionality 3 5 Binary Outputs Reyrolle 7SR5 Transformer Protection Device Device Manual 93 C53000 G7040 C015 1 Edition 11 2019 ...

Page 94: ...average maximum and minimum demand levels The data log can measure and store up to 10 080 individual time stamped measurements the time between each measured value sampling rate is defined by the user Maximum minimum and mean values of measured current voltage and power where applicable are recorded and can be viewed in the relay Instruments menu Complete demand log records can be viewed and analy...

Page 95: ... statistics can be reset from the device fascia The statistics can also be reset from a binary input or communication command After reset the update period and window are immediately restarted Configuration Data Storage Demand Data Log Parameter Range Default Setting Data log period 5 to 10 min Δ 1 min 10 to 60 min Δ 5 min 5 min Clear data log Demand window 1 to 24 hr Δ 1 hr 24 hr Demand window ty...

Page 96: ...inVIMMXU1 A neut Frequency MEAS MinVIMMXU1 Hz Power Factor PF MEAS MinVIMMXU1 PF phsA Power Factor PF MEAS MinVIMMXU1 PF phsB Power Factor PF MEAS MinVIMMXU1 PF phsC Va Va MEAS MinVIMMXU1 PhV phsA Vb Vb MEAS MinVIMMXU1 PhV phsB Vc Vc MEAS MinVIMMXU1 PhV phsC Va b Vab MEAS MinVIMMXU1 PPV phsAB Vb c Vbc MEAS MinVIMMXU1 PPV phsBC Vc a Vca MEAS MinVIMMXU1 PPV phsCA Power Factor PF MEAS MinVIMMXU1 TotP...

Page 97: ...d stVal 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 MeanIMMXU Health Information Device Healthy 0 1 MeanIMMXU Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 MeanIMMXU A Information Value Ia Ia MeanIMMXU A phsA InstcVal mag f Measured Value Value MeanIMMXU A phsA cVal mag f Mea...

Page 98: ...XU A neut InstcVal mag f Measured Value Value MeanIMMXU A neut cVal mag f Measured Value Value MeanIMMXU A neut units SIunit 5 A MeanIMMXU A neut units multiplier 0 1 MaxIMMXU Mod Information Reset Device x MaxIMMXU Mod stVal 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 MaxIMMXU Health Information Device Healthy 0 1 MaxIMMXU He...

Page 99: ... phsC cVal mag f Measured Value Value MaxIMMXU A phsC units SIunit 5 A MaxIMMXU A phsC units multiplier 0 1 Information Value Ig neut MaxIMMXU A neut InstcVal mag f Measured Value Value MaxIMMXU A neut cVal mag f Measured Value Value MaxIMMXU A neut units SIunit 5 A MaxIMMXU A neut units multiplier 0 1 MinIMMXU Mod Information Reset Device x MinIMMXU Mod stVal 1 Device Annunciation ON TRUE 1 OFF F...

Page 100: ...l mag f Measured Value Value MinIMMXU A phsC cVal mag f Measured Value Value MinIMMXU A phsC units SIunit 5 A MinIMMXU A phsC units multiplier 0 1 Information Value Ig neut MinIMMXU A neut InstcVal mag f Measured Value Value MinIMMXU A neut cVal mag f Measured Value Value MinIMMXU A neut units SIunit 5 A MinIMMXU A neut units multiplier 0 1 IEC 61850 Functional Information Mapping MeanVIMMXU MaxVI...

Page 101: ...its SIunit 5 A MeanVIMMXU A phsB units multiplier 0 1 Information Value Ic Ic MeanVIMMXU A phsC InstcVal mag f Measured Value Value MeanVIMMXU A phsC cVal mag f Measured Value Value MeanVIMMXU A phsC units SIunit 5 A MeanVIMMXU A phsC units multiplier 0 1 Information Value Ig neut MeanVIMMXU A neut InstcVal mag f Measured Value Value MeanVIMMXU A neut cVal mag f Measured Value Value MeanVIMMXU A n...

Page 102: ...f Measured Value Value MeanVIMMXU PhV phsA cVal mag f Measured Value Value MeanVIMMXU PhV phsA units SIunit 29 V MeanVIMMXU PhV phsA units multiplier 0 1 Information Value Vb Vb MeanVIMMXU PhV phsB InstcVal mag f Measured Value Value MeanVIMMXU PhV phsB cVal mag f Measured Value Value MeanVIMMXU PhV phsB units SIunit 29 V MeanVIMMXU PhV phsB units multiplier 0 1 Information Value Vc Vc MeanVIMMXU ...

Page 103: ...nVIMMXU TotPF units multiplier 0 1 MeanVIMMXU TotVA Information Value Apparent Power S MeanVIMMXU TotVA instmag f Measured Value Value MeanVIMMXU TotVA mag f Measured Value Value MeanVIMMXU TotVA units SIunit 61 VA MeanVIMMXU TotVA units multiplier 0 1 MeanVIMMXU TotVAr Information Value Reactive Power Q MeanVIMMXU TotVAr instmag f Measured Value Value MeanVIMMXU TotVAr mag f Measured Value Value ...

Page 104: ...sA cVal mag f Measured Value Value MaxVIMMXU A phsA units SIunit 5 A MaxVIMMXU A phsA units multiplier 0 1 Information Value Ib Ib MaxVIMMXU A phsB InstcVal mag f Measured Value Value MaxVIMMXU A phsB cVal mag f Measured Value Value MaxVIMMXU A phsB units SIunit 5 A MaxVIMMXU A phsB units multiplier 0 1 Information Value Ic Ic MaxVIMMXU A phsC InstcVal mag f Measured Value Value MaxVIMMXU A phsC c...

Page 105: ...asured Value Value MaxVIMMXU PF phsB units SIunit 1 None MaxVIMMXU PF phsB units multiplier 0 1 Information Value Power Factor PF MaxVIMMXU PF phsC InstcVal mag f Measured Value Value MaxVIMMXU PF phsC cVal mag f Measured Value Value MaxVIMMXU PF phsC units SIunit 1 None MaxVIMMXU PF phsC units multiplier 0 1 MaxVIMMXU PhV Information Value Va Va MaxVIMMXU PhV phsA InstcVal mag f Measured Value Va...

Page 106: ...MXU PPV phsBC units multiplier 0 1 Information Value Vc a Vca MaxVIMMXU PPV phsCA InstcVal mag f Measured Value Value MaxVIMMXU PPV phsCA cVal mag f Measured Value Value MaxVIMMXU PPV phsCA units SIunit 29 V MaxVIMMXU PPV phsCA units multiplier 0 1 MaxVIMMXU TotPF Information Value Total Power Factor PF MaxVIMMXU TotPF instmag f Measured Value Value MaxVIMMXU TotPF mag f Measured Value Value MaxVI...

Page 107: ...alue Value MaxVIMMXU TotW units SIunit 62 W Watt MaxVIMMXU TotW units multiplier 0 1 MinMMXU Mod Information Reset Device x MinMMXU Mod stVal 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 MinMMXU Health Information Device Healthy 0 1 MinMMXU Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING ...

Page 108: ...it 5 A MinVIMMXU A neut units multiplier 0 1 MinVIMMXU Hz Information Value Frequency MinVIMMXU Hz instmag f Measured Value Value MinVIMMXU Hz mag f Measured Value Value MinVIMMXU PF Information Value Power Factor PF MinVIMMXU PF phsA InstcVal mag f Measured Value Value MinVIMMXU PF phsA cVal mag f Measured Value Value MinVIMMXU PF phsA units SIunit 1 None MinVIMMXU PF phsA units multiplier 0 1 In...

Page 109: ...lue Value MinVIMMXU PPV phsAB cVal mag f Measured Value Value MinVIMMXU PPV phsAB units SIunit 29 V MinVIMMXU PPV phsAB units multiplier 0 1 Information Value Vb c Vbc MinVIMMXU PPV phsBC InstcVal mag f Measured Value Value MinVIMMXU PPV phsBC cVal mag f Measured Value Value MinVIMMXU PPV phsBC units SIunit 29 V MinVIMMXU PPV phsBC units multiplier 0 1 Information Value Vc a Vca MinVIMMXU PPV phsC...

Page 110: ...IMMXU TotW Information Value Active Power P MinVIMMXU TotW instmag f Measured Value Value MinVIMMXU TotW mag f Measured Value Value MinVIMMXU TotW units SIunit 62 W Watt MinVIMMXU TotW units multiplier 0 1 IEC 61850 Functional Information Mapping Energy Measurement MMTR MMTR Mod Information Reset Device x MMTR Mod stVal 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 ...

Page 111: ...e Value MMTR SupWh units SIUnit 72 Wh MMTR SupWh units multiplier 3 None MMTR SupWh pulsQty 10 6 None 3 Dependant on the Reactive Imp Energy Unit setting The unit of energy is calculated by combining the multiplier and the pulsQty By default this is 103 10 10 000 or 10 kVArh 4 Dependant on the Active Imp Energy Unit setting The unit of energy is calculated by combining the multiplier and the pulsQ...

Page 112: ... fascia using the Data Storage Clear Waveforms setting or from Reydisp Relay waveform storage is triggered initiated by user selected relay operations from the relay fascia Wave form Storage Trigger Waveform from a suitably programmed binary input or from the data comms channel s An output is provided to indicate when a new record has been stored The IEC 61850 implementation supports the file tran...

Page 113: ... 46DT n All 47 Storage 47 n None 49 Storage 49 n None 50 Storage 50 n 50G n 50N n All 51 Storage 51 n 51G n 51N n All 50SOTF Storage 50SOTF n 50GSOTF n All 59 Storage 59 n 59Vx n 59NDT n 59NIT n None 78 Storage 78VS n All 81 Storage 81 n None 87 Storage 87GH n All Pre Trigger storage 10 to 90 Δ 10 50 Record duration 1 s 2 s 5 s 10 s 1 s Trigger waveform From Device facia binary input comms Clear w...

Page 114: ...re triggered from operation of an output relay programmed as a Trip Contact see 3 5 Binary Outputs The Trip Alert feature must also be enabled see 3 2 Device Configuration Measured quantities for the last 100 relay trip fault records are stored with time and date of trip Fault data records can be viewed on the HMI LCD These include the LED status at the time of recording Fault records are stored i...

Page 115: ... Parameter Fault Storage Clear Faults Default Setting This is used to delete all stored fault records The faults can also be deleted from a binary input or communication command Configuration Data Storage Fault Storage Parameter Range Default Setting Max fault rec time 0 to 20 s Δ 0 01 s 20 1 to 60 s Δ 0 1 s Clear faults Yes no No IEC 61850 Functional Information Mapping Last Trip Current Voltage ...

Page 116: ...FLT1 A phsA cVal mag f Measured Value Value VI_RFLT1 A phsA units SIunit 5 A VI_RFLT1 A phsA units multiplier 0 1 Information Value Ib Ib VI_RFLT1 A phsB cVal mag f Measured Value Value VI_RFLT1 A phsB units SIunit 5 A VI_RFLT1 A phsB units multiplier 0 1 Information Value Ic Ic VI_RFLT1 A phsC cVal mag f Measured Value Value VI_RFLT1 A phsC units SIunit 5 A VI_RFLT1 A phsC units multiplier 0 1 In...

Page 117: ...ier 0 1 Information Value Ic Ic I_RFLT A phsC cVal mag f Measured Value Value I_RFLT A phsC units SIunit 5 A I_RFLT A phsC units multiplier 0 1 Information Value Ineut Ig I_RFLT A neut cVal mag f Measured Value Value I_RFLT A neut units SIunit 5 A I_RFLT A neut units multiplier 0 1 Energy Storage The energy measurement storage function corresponds to the logical node MMTR in IEC 61850 The energy i...

Page 118: ...ues reported by instruments and communications protocols When the accumulated energy quantities reach a set increment the relay issues a pulse to the binary outputs i e Active Imp Pulse see 3 5 Binary Outputs The direction of energy transfer is described in section 3 2 Device Configuration i i NOTE Changing this parameter from the fascia will cause the device to restart to allow IEC 61850 to updat...

Page 119: ...l cause the device to restart to allow IEC 61850 to update Event Log The event recorder feature allows the time tagging of any change of state Event in the relay As an event occurs the actual event condition is logged as a record along with a time and date stamp to a resolution of 1 millisecond There is capacity for a maximum of 5000 event records that can be stored in the relay and when the event...

Page 120: ... Data Storage Event Storage Parameter Range Default Setting Clear events Yes no Device Functionality 3 6 Data Storage 120 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 121: ...ote access The port can be independently mapped to the DNP3 0 IEC 60870 5 103 or Modbus RTU protocol or switched off in the device configuration Com Ethernet 2 electrical RJ45 ports Channel 1 Terminal Reference X2 and Channel 2 Terminal Refer ence X3 or 2 optical LC ethernet ports Channel 1 Terminal Reference X4 and Channel 2 Terminal Reference X5 The Ethernet ports can be used for IEC 61850 commu...

Page 122: ...d and is used for error detection Parameter COM1 RS485 Mode Default Setting Remote This setting is used to select the operating mode of the RS485 port and is used in conjunction with the device operating mode Some actions are restricted on the port depending upon the ports mode and device operating mode Parameter DNP3 Unsolicited Events Default Setting Disabled This setting is used enable the supp...

Page 123: ...34 0 DNP3 Application timeout 5 to 300 s 10 s Ethernet Parameters The Ethernet interface parameters are configured in the Reydisp Manager pc software using the device Configure Interface tool and can not be configured from the fascia or device settings The devices support the Editions 1 and 2 of IEC 61850 and the selection is made in Reydisp Manager when creating the device To provide complete com...

Page 124: ...meterization for a stand alone device and can also be set in the IEC 61850 System Configurator when the device is associated with a station One exception to this is operation in a network with a DHCP server Parameter Subnet Mask Default Setting 255 255 255 0 This mask must be set according to the addressing scheme of the network Device Functionality 3 7 Data Communications 124 Reyrolle 7SR5 Transf...

Page 125: ...lly with or without integrated switch function This applies for the electrical as well as the optical module This function can be selected via the parameterization It is not necessary to make any indication in the order Parameter Operating Mode Default Setting Line The interfaces on the devices can be used in different operating modes A distinction is drawn between the operating modes Line and Swi...

Page 126: ...rotocol OSM Legacy Siemens redundancy protocol PRP Parallel redundancy protocol HSR High availability seamless redundancy For detailed information on the parameterization of the Advanced setting please refer to the Communica tions manual Device Functionality 3 7 Data Communications 126 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 127: ...mapping them to a Virtual Input Output Graphical logic schemes are compiled using the Reydisp Manager User Logic tool Structure of the Function Up to 16 user definable logic equations can be configured in the device This function corresponds to the logical node CTRL EGGIO in IEC 61850 Equations are defined in the following stages Define the logic equation Assign pickup delay Assign drop off delay ...

Page 128: ... characters are 0 1 2 3 4 5 6 7 8 9 Digit Parenthesis NOT Function AND Function EXCLUSIVE OR Function OR Function En Equation number Fn Function Key number 1 Key pressed 0 Key not pressed In Binary input number 1 Input energized 0 Input de energized Ln LED number 1 Input energized 0 Input de energized 3 8 3 3 8 4 Device Functionality 3 8 Quick Logic 128 Reyrolle 7SR5 Transformer Protection Device ...

Page 129: ...ter Target setting When the count value En Counter Target the output of En is initiated and this value is held until the initiating conditions are removed when En is instantaneously reset The output of En is assigned in the Output Config Output Matrix menu where it can be programmed to any binary output O LED L or Virtual Input Output V combination Parameter En Counter Reset Mode Default Setting O...

Page 130: ... 1 2 3 4 5 6 7 8 9 In Fn Ln On Vn En Pickup delay 0 to 14400 s 0 s En Dropoff delay 0 s En Counter target 1 to 999 1 En Counter reset mode Off Single Shot Multi Shot Off En Counter reset time 0 to 14400 s 0 s IEC 61850 Functional Information Mapping EGGIO1 Mod Information Reset Device x EGGIO1 Mod stVal 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 ...

Page 131: ...GGIO1 Ind Information Equation Status 0 1 EGGIO1 Ind stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Values of 1 to 16 IEC 61850 Value ON 1 OFF 0 Device Functionality 3 8 Quick Logic Reyrolle 7SR5 Transformer Protection Device Device Manual 131 C53000 G7040 C015 1 Edition 11 2019 ...

Page 132: ...132 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 133: ...tion Templates 4 1 Introduction 134 4 2 Function Groups and Function Elements 135 4 3 Function Configuration 139 4 Reyrolle 7SR5 Transformer Protection Device Device Manual 133 C53000 G7040 C015 1 Edition 11 2019 ...

Page 134: ... 2 6 Figure 2 7 Figure 2 8 and Figure 2 9 Function groups and elements can be added or removed only by using the Reydisp software configurator tool Function groups and function elements that have been included can be Enabled or Disabled using Reydisp or from the device fascia Protection and automation function elements see 5 Protection and Automation Functions Supervision function elements see 6 S...

Page 135: ...al functionality that is not dependent on analogue input quantities is common to all 7SR54 devices is not shown in the figures below these include CB and plant control Trip close circuit supervision Autoreclose functionality User logic schemes Example 7SR542 The 7SR542 transformer application templates are summarized in Figure 4 1 and Figure 4 2 dw_7SR5_7SR5420ApplicationTemplate 1 en_US Figure 4 ...

Page 136: ...SR5421 Devices Example 7SR543 The 7SR543 transformer application templates are summarized in Figure 4 3 and Figure 4 4 7SR54 Function Templates 4 2 Function Groups and Function Elements 136 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 137: ...plate 1 en_US Figure 4 3 Application Templates for 7SR5430 Devices 7SR54 Function Templates 4 2 Function Groups and Function Elements Reyrolle 7SR5 Transformer Protection Device Device Manual 137 C53000 G7040 C015 1 Edition 11 2019 ...

Page 138: ...plate 1 en_US Figure 4 4 Application Templates for 7SR5431 Devices 7SR54 Function Templates 4 2 Function Groups and Function Elements 138 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 139: ...lement Enable Disable Application and Setting Notes Parameter Function Enable Disable Default setting Disabled When set to disabled all instances of the relevent function element are disabled When set to enabled the individual instances of the function elements can be enabled see individual function described in sections 5 6 and 7 Settings Menu Settings Functions Function Config Function Group Ran...

Page 140: ... Disabled Disabled 51 Overcurrent Enabled Disabled Disabled 51G Earth fault Enabled Disabled Disabled 51N Earth fault Enabled Disabled Disabled 51V Voltage OC Enabled Disabled Disabled 52 CB control Enabled Disabled Disabled 59N Overvoltage Enabled Disabled Disabled 59Vx Overvoltage Enabled Disabled Disabled 60CTS CT Supervision Enabled Disabled Disabled 60VTS Enabled Disabled Disabled 74CCS Close...

Page 141: ...ist Input Output Matrix General Pickup User Logic Type IEC 103 DNP3 MODBUS RTU The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager tool Serial Comms Events 4 3 6 7SR54 Function Templates 4 3 Function Configuration Reyrolle 7SR5 Transformer ...

Page 142: ...142 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 143: ...Instantaneous Overcurrent Phase 204 5 12 50G Instantaneous Earth Fault Measured 214 5 13 50N Instantaneous Earth Fault Calculated 221 5 14 51 Time Delayed Overcurrent Phase 228 5 15 51G Time Delayed Earth Fault Measured 246 5 16 51N Time Delayed Earth Fault Calculated 255 5 17 59N Neutral Voltage Displacement 264 5 18 59Vx Overvoltage Protection Vx 271 5 19 67 Directional Overcurrent Earth Fault 2...

Page 144: ...1 2 3 and 3 phase VT inputs e g VT1 2 3 The function is parameterized to block operation of the overcurrent protection during reverse load current flow but not to block the protection for fault currents in the operate direction The function has both single phase and 3 phase modes of operation Operation of 3 phase mode can be selected to inhibit operation of the overcurrent function elements 50 and...

Page 145: ...0 above this setting Parameter 1Ph Vpps Setting Default setting 50 V This setting for the secondary positive phase sequence voltage determines whether the system voltage is within normal operating limits e g flow of fault current may be coincident with reduced positive phase sequence voltage V1 and increased negative phase sequence voltage V2 Operation of the 21LB func tion will be blocked for val...

Page 146: ...ced positive phase sequence voltage V1 and increased negative phase sequence voltage V2 Operation of the 21LB func tion will be blocked for values of V1 below this setting Parameter 3Ph Angle ve Default setting 20 Reverse load current flow will have a relatively high power factor in comparison to reverse fault current flow this setting defines the positive pickup angle for the 21LB function i e th...

Page 147: ...econdary Ω To enable blocking of the overcurrent element for values of current up to say 1 5 times the nominal load current value to allow for temporary reverse overload conditions the setting is calculated from Protection and Automation Functions 5 1 21LB Load Blinder Reyrolle 7SR5 Transformer Protection Device Device Manual 147 C53000 G7040 C015 1 Edition 11 2019 ...

Page 148: ... Where reverse current flow is caused by a system fault the positive sequence voltage will reduce significantly To facilitate load blinder oper ation the system should be substantially balanced i e positive phase sequence voltage will be high A setting of 0 95 Vrated is selected i e 21LB V1 setting 0 95 63 5 60 V 21LB 3P Inps Setting The blinder is only operational during normal load levels of rev...

Page 149: ... Δ 1 20 Impedance 1 to 50 Ω Δ 0 1 Ω 10 Ω Information List Input Output Matrix General Pickup User Logic Type IEC 103 DNP3 MODBUS RTU 21LB 3Ph Fwd 21LB 3Ph Fwd Oper ated Output 21LB 3Ph Rev 21LB 3Ph Rev Oper ated Output 21LB 1Ph Fwd 21LB 1Ph Fwd Oper ated Output 21LB 1Ph Rev 21LB 1Ph Rev Oper ated Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RT...

Page 150: ...it monitors the primary system using the 3 phase voltage inputs e g VT1 2 3 The relay has selectable V f protection operate characteristics User Definable Inverse curve 24IT Independent Definite Time Lag DTL 24DT 24DT Method of Measurement The stage comprises a threshold and a definite time delay stage If the V f value is greater than the set threshold value then the stage is tripped after an adju...

Page 151: ...agram 1 en_US Figure 5 3 Logic Diagram 24 Overexcitation Protection 5 2 3 Protection and Automation Functions 5 2 24 Overexcitation Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 151 C53000 G7040 C015 1 Edition 11 2019 ...

Page 152: ...requency Parameter 24DT Hysteresis Default setting 0 1 The recommended setting is the feasible upper limit selected to avoid output chattering for marginal measured values Parameter 24DT Delay Default setting 60 s The time delay is set below the over fluxing withstand capability of the protected plant at the operate setting 5 2 4 Protection and Automation Functions 5 2 24 Overexcitation Protection...

Page 153: ...ined by the user points starts the integration process weighted counting of the character istic curve dw_thermal_characteristic_curve_tripping_zone 1 en_US The time derived from the characteristic curve and associated with the V f value is set to 100 With each function call the time will be increased according to the respective weighted invocation interval If the 100 value is exceeded tripping is ...

Page 154: ...0 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 20 s Functions Protection 24 24IT n Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 Element Enabled Disabled Disabled Reset 0 to 100 s Δ 0 1 s 100 to 1000 s Δ 10 s 0 s X0 Point 1 to 2 p u Δ 0 01 p u 1 1 p u Y0 Point 0 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 20000 s Δ 100 s 20000 s X1 Point...

Page 155: ...nt 0 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 20000 s Δ 100 s 60 s X6 Point 1 to 2 p u Δ 0 01 p u 1 40 p u Y6 Point 0 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 20000 s Δ 100 s 20 s IEC 61850 Functional Information Mapping A24DTPVPH Mod Information 24 Overexcitation Enabled Function Config x 0 1 1 Inhibit 24DT n 1 x 0 0 24DT n Enabled x x 1 0 A...

Page 156: ...kup 0 1 A24DTPVPH Str general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A24ITPVPH Mod Information 24 Overexcitation Enabled Function Config x 0 1 1 Inhibit 24IT 1 1 x 0 0 24IT 1 Enabled x x 1 0 A24ITPVPH Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value OK 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 Protection and Automation Fun...

Page 157: ...ral Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 24DT n Inhibit 24DT n Input 24DT n 24DT n Operated Output Y Y Y 24DT n Pickup 24DT n Pickup Output Inhibit 24IT 1 Inhibit 24IT 1 Input 24IT 1 24IT 1 Operated Output Y Y Y 24IT 1 Pickup 24IT 1 Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the conf...

Page 158: ...f the Function The 3 phase undervoltage function has group dependent settings These settings can be different in each settings group group numbers Gn 1 to 4 This function corresponds to the logical node A27PTUV in IEC 61850 The function monitors the primary system using the 3 phase voltage inputs e g VT1 2 3 The fundamental frequency component is measured from processing of the measured voltage sa...

Page 159: ...es VA VB and VC or phase phase voltages VAB VBC and VCA and is applied to all elements of this function type Parameter Value Description Ph Ph Where required to monitor the load under voltage conditions the phase to phase value is appropriate Ph N This setting may be considered where single phase loads are connected 5 3 3 5 3 4 Protection and Automation Functions 5 3 27 Undervoltage Protection 3 P...

Page 160: ...lication Parameter Hysteresis Default setting 3 This sets the drop off threshold for the undervoltage element The element will pickup if the voltage falls below the setting and will reset when the voltage recovers to the setting hysteresis voltage This setting is a percentage of the undervoltage setting The default setting of 3 is generally enough to avoid chatter of the element but care may be re...

Page 161: ...o phase secondary nominal voltage allowing for a voltage controller which would be expected to correct this deviation in less than 2 seconds Threshold 110 0 9 99 V Time delay must be greater than 2 seconds Choose 3 s Choose a suitable element 27 1 Second stage To detect a 30 deviation in the voltage compared to the expected 110 V phase to phase secondary nominal voltage allowing only for transient...

Page 162: ...Gn3 Gn4 Input Selection Ph Ph Ph N Ph Ph UV Guard Setting 1 to 200 V Δ 0 5 V 5 V Functions Protection 27 Gn 27 n Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 Element Enabled Disabled Disabled Setting 5 to 200 V Δ 0 5 V 80 V Hysteresis 0 to 80 Δ 0 1 3 Delay 0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 0 1 s VTS Inhibit No Yes No UV G...

Page 163: ...5 A27PTUV Health Information Device Healthy 0 1 A27PTUV Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A27PTUV Op Information 27 n Operated 0 1 A27PTUV Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A27PTUV Str Information 27 n Pickup 0 1 A27PTUV Str general 0 1 5 3 6 Protection and Automation Functions 5 3...

Page 164: ...ated Output Y Y Y 27 n PhA Pickup Output 27 n PhB Pickup Output 27 n PhC Pickup Output 27 n Pickup 27 n Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 5 3 7 Protection and Automation Functions 5...

Page 165: ... the transformer and error during control operations Structure of the Function The single phase undervoltage function has group dependent settings These settings can be different in each settings group group numbers Gn 1 to 4 This function corresponds to the logical node A27VxPTUV in IEC 61850 The function monitors the primary system using the single phase VT input e g VT4 The fundamental frequenc...

Page 166: ...7Vx function elements can be blocked Parameter Element Default setting Disabled This setting is used to allow the element to be switched on and off if it is not required A separate setting is provided for each element These settings can be used to select the number of elements required 5 4 3 5 4 4 Protection and Automation Functions 5 4 27Vx Undervoltage Protection Vx 166 Reyrolle 7SR5 Transformer...

Page 167: ...ion in supply voltage compared to nominal as a standing level which may indicate a voltage control failure but also detects a 30 reduction in voltage between any phases more quickly to allow remedial actions such as a supply changeover The actions should not be initiated for a loss of supply which could result from a grid supply trip which is assumed to be handled separately This example considers...

Page 168: ...27Vx 2 Element Enabled 27Vx 2 Setting 77 V 27Vx 2 Hysteresis 3 27Vx 2 Delay 1 s 27Vx 2 UV Guarded Yes Settings Menu Functions Function Config Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 27Vx Undervoltage Enabled Disabled Disabled Functions Protection 27Vx Gn 27Vx Common Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 UV Guard Setting 1 to 200 V Δ 0 5 V 5 V Functions Protection 27Vx Gn 27Vx n...

Page 169: ...formation Device Healthy 0 1 A27VxPTUV Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A27VxPTUV Op Information Element Operated 0 1 A27VxPTUV Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A27VxPTUV Str Information Element picked up 0 1 A27VxPTUV Str general 0 1 5 4 6 Protection and Automation Functions 5 4...

Page 170: ...7Vx n Pickup 27Vx n Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 5 4 7 Protection and Automation Functions 5 4 27Vx Undervoltage Protection Vx 170 Reyrolle 7SR5 Transformer Protection Device D...

Page 171: ...ttings can be different in each settings group group numbers Gn 1 to 4 This function corresponds to the logical node A37PTUC in IEC 61850 The function monitors the primary system using the 3 phase current inputs e g CT1 2 3 Function operation is selected to Any or All phases Blocking of the Stage When a binary input configured as Inhibit 37 n is operated the picked up relevent function element wil...

Page 172: ... currents fall below setting Parameter Element Default setting Disabled This setting is used to allow the element to be switched on and off if it is not required A separate setting is provided for each element This setting can be used to select the number of elements required 5 5 3 5 5 4 Protection and Automation Functions 5 5 37 Undercurrent Protection Phase 172 Reyrolle 7SR5 Transformer Protecti...

Page 173: ...can be blocked if all phase currents fall below setting Settings Menu Functions Function Config Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 37 Undercurrent Enabled Disabled Disabled Functions Protection 37 Gn 37 Common Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 UC Guard Setting 0 05 to 5 Irated Δ 0 05 Irated 0 1 Irated Functions Protection 37 Gn 37 n Parameter Range Settings Default Gn1...

Page 174: ...elevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A37PTUC Health Information Device Healthy 0 1 A37PTUC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A37PTUC Op Information Element Operated 0 1 A37PTUC Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 5 5 6 Protection and Automation Functio...

Page 175: ...C Str phsB 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information Element Phase C picked up 0 1 A37PTUC Str phsC 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 37 n Inhibit 37 n Input Inhibit 37 n PhA Input Inhibit 37 n PhB Inp...

Page 176: ...Output 37 n PhC Pickup Output 37 n Pickup 37 n Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events Protection and Automation Functions 5 5 37 Undercurrent Protection Phase 176 Reyrolle 7SR5 Transform...

Page 177: ...he primary system using the single phase current input e g CT4 Blocking of the Stage When a binary input configured as Inhibit 37G n is operated the picked up relevent function element will reset Logic of the Function lo_7SR5_37Glogicdiagram 1 en_US Figure 5 7 Logic Diagram 37G Undercurrent Earth Fault Measured Application and Setting Notes Parameter Element Default setting Disabled This setting i...

Page 178: ...s Default Gn1 Gn2 Gn3 Gn4 Element Enabled Disabled Disabled Setting 0 005 to 5 Irated Δ 0 001 Irated 0 2 Irated Delay 0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 0 s IEC 61850 Functional Information Mapping A37GPTUC Mod Information 37G Undercurrent Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A37GP...

Page 179: ...1 FALSE 0 Information List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 37G n Inhibit 37G n Input 37G n 37G n Operated Output Y Y Y 37G n Pickup 37G n Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature...

Page 180: ...nds to the logical node A46DTPTOC and A46ITPTOC in IEC 61850 The function monitors the primary system using the 3 phase current inputs e g CT1 2 3 The negative sequence phase NPS component of current I2 is derived from the 3 phase currents The function has 2 element types Definite time negative sequence protection 46DT Inverse time negative sequence protection 46IT Blocking of the Stage When a bin...

Page 181: ...s setting is used to allow the element to be switched on and off if it is not required A separate setting is provided for each element This setting can be used to select the number of elements required 5 7 3 5 7 4 Protection and Automation Functions 5 7 46 Negative Sequence Overcurrent Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 181 C53000 G7040 C015 1 Edition 11 2019 ...

Page 182: ...uired for the specific application Parameter Time Mult IEC ANSI Default setting 1 The set value for the time multiplier is derived from the time grading study of the electrical network or protected plant Settings Example Backup Protection with a 3 Winding Transformer The function Negative Sequence Overcurrent Protection can be used to provide a transformer sensitive backup protection on the supply...

Page 183: ...by unbalanced faults In the unbalanced fault the pickup values of the overcurrent protection is not reached The current is based on the rated object current Reference value rated current Therefore The 2 phase short circuit with the current I leads to a negative sequence current fo_function46ShortCircuit 2phaseLineNetwork 1 en_US The 1 phase short circuit with the current I leads to a negative sequ...

Page 184: ...iting to for example 1 2 Irated obj Current limitation Imax yes Maximum phase current 1 2 A at 1 A transformer and ideal adaptation to the protected object Here calculate the current with the current transformer ratio to the secondary circuit The setting of the protection stage is aligned to the network type A setting value of 25 Threshold 25 offers a sufficiently high sensitivity If errors occur ...

Page 185: ...ent Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A46DTPTOC Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A46DTPTOC Health Information Device Healthy 0 1 A46DTPTOC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 5 7 6 Protectio...

Page 186: ...tion Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A46ITPTOC Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A46ITPTOC Health Information Device Healthy 0 1 A46ITPTOC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 Protection and Automation Funct...

Page 187: ...put 46DT n Output Y Y Y 46DT n Operated 46DT n Operated Output 46DT n Pickup Output Inhibit 46IT n Inhibit 46IT n Input 46IT n Output Y Y Y 46IT n Operated 46IT n Operated Output 46IT n Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reyd...

Page 188: ...tion corresponds to the logical node A46BCPTOC in IEC 61850 The function monitors the primary system using the 3 phase current inputs e g CT1 2 3 The fundamental frequency component is measured from processing of the measured current samples The broken conductor in a 3 phase system is detected by a high the ratio of the negative phase sequence NPS current level to positive phase sequence PPS curre...

Page 189: ...tting Default setting 0 1 x In 0 1 Irated If the negative Parameter 46BC n Element Default setting Disabled This setting is used to allow the element to be switched on or off if it is not required 5 8 3 5 8 4 Protection and Automation Functions 5 8 46BC Broken Conductor Detection Reyrolle 7SR5 Transformer Protection Device Device Manual 189 C53000 G7040 C015 1 Edition 11 2019 ...

Page 190: ...ed during periods of low system loading by using the undercurrent guard feature Settings Menu Functions Function Config Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 46BC Open Circuit Enabled Disabled Disabled Functions Protection 46BC Gn 46BC Common Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 UC Guard Setting 0 05 to 5 Irated Δ 0 05 Irated 0 1 Irated Functions Protection 46BC 46BC n Param...

Page 191: ...formation Device Healthy 0 1 A46BCPTOC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A46BCPTOC Op Information Element Operated 0 1 A46BCPTOC Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A46BCPTOC Str Information Element picked up 0 1 A46BCPTOC Str general 0 1 5 8 6 Protection and Automation Functions 5 8...

Page 192: ...6BC n Pickup 46BC n Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 5 8 7 Protection and Automation Functions 5 8 46BC Broken Conductor Detection 192 Reyrolle 7SR5 Transformer Protection Device D...

Page 193: ... Operation can be based on the user selection of the positive phase sequence voltage negative phase sequence voltage or zero phase sequence voltage i i NOTE Where VT1 2 3 configuration is selected to Va Vb Vc then zero phase sequence overvoltage cannot be measured A definite time delayed operate characteristic is used Settings are provided for operate pickup threshold voltage reset voltage level h...

Page 194: ...and Setting Notes Parameter 47 Common UV Guard Setting Default setting 5 V Voltage elements can be blocked if all phase voltages fall below the setting 5 9 3 5 9 4 Protection and Automation Functions 5 9 47 Sequence Overvoltage Protection 194 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 195: ...ion the setting is in zero phase sequence volts ZPS and therefore 1 3 of the residual voltage 3V0 The elements should be set to suit the individual application Parameter Hysteresis Default setting 3 The element will reset when the voltage recovers to the 47 n setting minus the 47 n hysteresis setting The default setting of 3 is generally enough to avoid chatter of the element but care may be requi...

Page 196: ...n elements can be used as alarms to indicate that the level of NPS has reached abnormal levels Remedial action can then be taken such as introducing a balancer network of capacitors and inductors Very high levels of NPS voltage indicate incorrect phase sequence due to an incorrect connection Settings Menu Configuration Function Config Parameter Setting Options Settings Default Gn1 Gn2 Gn3 Gn4 47 S...

Page 197: ...E 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A47PTOV Health Information Device Healthy 0 1 A47PTOV Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A47PTOV Op Information Element Operated 0 1 A47PTOV Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 5 9 6 Protection and...

Page 198: ...Operated 47 n Operated Output Y Y Y 47 n Pickup 47 n Pickup Output The complete serial protocol information list containing the DNP3 IEC60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 5 9 7 Protection and Automation Functions 5 9 47 Sequence Overvoltage Protection 198 Reyrolle 7...

Page 199: ...00 for maximum thermal withstand of equipment or the trip threshold dw_7SR5_ThermalOverloadHeatingandCoolingCharacteristic 1 en_US Figure 5 12 Thermal Overload Heating and Cooling Characteristic For given current level the Thermal State will ramp up over time until Thermal Equilibrium is reached when Heating Effects of Current Thermal Losses The heating cooling curve characteristic is dependent up...

Page 200: ...rrent Operate Time T fo_7SR5_thermal equation 1 en_US T Operate time in minutes τ Time constant minutes In Log natural I Measured current Ip Pre load Iθ Overload setting For the heating curve fo_7SR5_heatingCurve 1 en_US 5 10 3 5 10 4 Protection and Automation Functions 5 10 49 Thermal Overload Protection 200 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 ...

Page 201: ...arameter Char Default setting IEC The operate characteristic can be based on the IEC thermal curve or a user thermal curve can be used Parameter Time Constant Default setting 10 min This setting is chosen to match the thermal characteristic of the protected plant Parameter Capacity Alarm Setting Default setting 50 An alarm can be given if the thermal state of the system exceeds a specified percent...

Page 202: ... 1 x 0 0 Element Inhibited x x 1 0 A49PTTR Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A49PTTR Health Information Device Healthy 0 1 A49PTTR Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A49PTTR Op Information Element Operated 0 1 A49PTTR Op general 0 1 5 10 6...

Page 203: ...pe IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 49 n Inhibit 49 n Input Reset 49 n Reset 49 n Input 49 n Trip 49 n Trip Operated Output Y Y Y 49 n Alarm 49 n Alarm Operated Output Y Y Y 49 n Pickup 49 n Pickup Output The complete serial protocol information list containing the DNP3 IEC60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature...

Page 204: ...s with infeed at both ends or in lines connected to form ring topologies Where directionalized overcurrent protection is used correct operation is dependent on valid information being received from the VT inputs operation of each directionalized element will be affected if a VT fuse fails When a fuse failure is detected 60VTS function each element can be selected to either ignore the VT failure sw...

Page 205: ... en_US Figure 5 14 Logic Diagram 50 Instantaneous Overcurrent Phase 5 11 3 Protection and Automation Functions 5 11 50 Instantaneous Overcurrent Phase Reyrolle 7SR5 Transformer Protection Device Device Manual 205 C53000 G7040 C015 1 Edition 11 2019 ...

Page 206: ... setting Disabled This setting is used to allow the element to be switched on and off if it is not required A separate setting is provided for each element These setting can be used to select the number of elements required 5 11 4 Protection and Automation Functions 5 11 50 Instantaneous Overcurrent Phase 206 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 ...

Page 207: ...er the element will operate for overcurrent detection in the Forward or Reverse direction based on the 67 directional element decision or for any overcurrent regardless of the 67 direction This allows the overcurrent protection to have different current and time settings for forward and reverse faults by using 2 elements Additional non directional elements can be used for backup or high set and wi...

Page 208: ...on or not operate for faults in the operate direction Parameter 81HB2 Inhibit Default setting No High levels of inrush currents into reactive components such as transformers when they are switched in can result in operation of overcurrent elements The inrush current can be detected by the 81HBL2 element This can be configured to inhibit the overcurrent element automatically Parameter Value Descrip...

Page 209: ...ement rather than its operation Instantaneous elements can be used in current graded schemes where there is a significant difference between the fault current levels at different relay points The instantaneous element is set to pickup at a current above the maximum fault current at the next down stream relay location and below its own minimum fault current level The protection is set to operate in...

Page 210: ...s No 79 Delayed Inhibit No Yes No 21LB 3P Inhibit 7 No Yes No 21LB 1P Inhibit 7 No Yes No IEC 61850 Functional Information Mapping A50PTOC Mod Information 50 Overcurrent Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A50PTOC Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 5 11 6 ...

Page 211: ...E 0 IEC 61850 Value TRUE 1 FALSE 0 Information Element Phase A picked up and Fwd Direction x 1 1 0 0 0 0 1 0 0 1 0 Element Phase A picked up and Rev Direction x x x 1 0 0 1 0 0 0 0 0 Element Phase B picked up and Fwd Direction x x x 0 0 0 0 1 0 1 0 0 Element Phase B picked up and Rev Direction 1 x 1 1 0 1 0 0 0 0 0 0 Element Phase C picked up and Fwd Direction 1 x x 0 0 0 0 1 1 0 0 0 Element Phase...

Page 212: ...n ON TRUE 1 OFF FALSE 0 IEC 61850 Value No Dir 0 FWD 1 REV 2 Information Element Phase B picked up 0 1 A50PTOC Str phsB 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information Element Phase B picked up and Fwd Direction 0 1 0 Element Phase B picked up and Rev Direction 1 0 0 A50PTOC Str dirPhsB 2 1 0 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value No Dir ...

Page 213: ...nhibit 50 n Inhibit 50 n Input 50 n PhA Pickup Output 50 n PhB Pickup Output 50 n PhC Pickup Output 50 n PhA Operated Output 50 n PhB Operated Output 50 n PhC Operated Output 50 n Pickup 50 n Pickup Output 50 n 50 n Operated Output Y Y Y The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using...

Page 214: ...e decision of the 67G element Provides information regarding flow direction of earth current for selective application of earth fault protection Ensures selective fault detection for parallel lines or transformers with infeed at one end Ensures selective fault detection in cable runs with infeed at both ends or in lines connected to form ring topologies Where earth fault protection is directionali...

Page 215: ...US Figure 5 16 Logic Diagram 50G Instantaneous Earth Fault Measured 5 12 3 Protection and Automation Functions 5 12 50G Instantaneous Earth Fault Measured Reyrolle 7SR5 Transformer Protection Device Device Manual 215 C53000 G7040 C015 1 Edition 11 2019 ...

Page 216: ...rovide true RMS measurement This method may be preferred for unbalance type protection where the unbalance applies at funda mental frequency and the risk of errors in transient response measurement can be avoided Parameter Dir Control Default setting Non Dir This setting is used to define whether the element will operate for earth faults detected in the Forward or Reverse direction based on the 67...

Page 217: ...in the operate direction Inhibit When 60VTS detects a VT failure the element is immediately inhibited automatically and will not operate Tripping of a system fault will then rely on other elements or devices Non Dir When 60VTS detects a VT failure the element will become non directional and ignore the directional decision The element will operate for overcurrent regardless of which direction the f...

Page 218: ...s can be given far lower pickup levels than relays which detect current above load current in each phase conductor Earth fault relays are important where the fault path to earth is a high resistance one such as in highly arid areas or where the system uses high values of earthing resistor reactance as any earth fault current that flows in the phase conductors will be limited Settings Menu Function...

Page 219: ...F FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A50GPTOC Health Information Device Healthy 0 1 A50GPTOC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A50GPTOC Op Information Element Operated 0 1 A50GPTOC Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 5 12 6 Protection and ...

Page 220: ...l Y Y Y 50G n Pickup 50G n Pickup Output 50G n 50G n Operated Output Y Y Y The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 5 12 7 Protection and Automation Functions 5 12 50G Instantaneous Earth Fault Measured...

Page 221: ...y uses the decision of the 67N element Provides information regarding flow direction of earth current for selective application of earth fault protection Ensures selective fault detection for parallel lines or transformers with infeed at one end Ensures selective fault detection in cable runs with infeed at both ends or in lines connected to form ring topologies Where earth fault protection is dir...

Page 222: ... Figure 5 17 Logic Diagram 50N Instantaneous Earth Fault Calculated 5 13 3 Protection and Automation Functions 5 13 50N Instantaneous Earth Fault Calculated 222 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 223: ...are not polarized by the voltage inputs Parameter Value Description Non Dir Select this setting if the element is to operate regard less of the current direction or presence of voltage Forward Select this setting if the element is to operate only in a forward direction Reverse Select this setting if the element is to operate only in a reverse direction Parameter Setting Default setting 0 5 x In 0 ...

Page 224: ... is inhibited by when the 81HBL2 element is operated Parameter 79 Delayed Inhibit Default setting No The autoreclose scheme sequence may require that some selected protection elements are only used for the first trip s of the sequence typically instantaneous ungraded protection elements before reverting to graded protection This setting is used to inhibit 50N operation when it is parameterized as ...

Page 225: ...Irated Delay DTL 0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 0 s VTS Action Off Inhibit Non Dir Off 81HB2 Inhibit No Yes No 79 Delayed Inhibit No Yes No IEC 61850 Functional Information Mapping A50NPTOC Mod Information 50N Earth Fault Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A50NPTOC Mod stVal ...

Page 226: ...ral 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A50NPTOC Str Information Element picked up 0 1 A50NPTOC Str general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information Element picked up and Fwd Direction 0 1 0 Element picked up and Rev Direction 1 0 0 A50NPTOC Str dirGeneral 2 1 0 Protection and Automation Functions 5 13 50N Ins...

Page 227: ...rated Output E F off on Control Y Y Y The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 5 13 7 Protection and Automation Functions 5 13 50N Instantaneous Earth Fault Calculated Reyrolle 7SR5 Transformer Protecti...

Page 228: ...or in lines connected to form ring topologies Where directionalized overcurrent protection is used correct operation is dependent on valid information being received from the VT inputs Operation of each directionalized element will be affected if a VT fuse fails When a fuse failure is detected 60VTS function each element can be selected to either ignore the VT failure switch to non directionalized...

Page 229: ... phase overcurrent menu are still applicable A CB Don t Believe It DBI condition is not acted on causing the element to remain operating in accord ance with the relevant 51 n settings Where the Reduced Current setting is disabled reversion to 51 n settings will only occur at the end of the Drop off time If any element is picked up on expiry of Drop off time the relay will issue a trip and lockout ...

Page 230: ...1 en_US Figure 5 18 Logic Diagram 51 Time Delayed Overcurrent Phase 5 14 3 Protection and Automation Functions 5 14 51 Time Delayed Overcurrent Phase 230 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 231: ...ication and Setting Notes Parameter 51V Element Ph Ph Default setting Disabled This setting switches the element on or off dependent on the requirements of the application 5 14 4 Protection and Automation Functions 5 14 51 Time Delayed Overcurrent Phase Reyrolle 7SR5 Transformer Protection Device Device Manual 231 C53000 G7040 C015 1 Edition 11 2019 ...

Page 232: ...ation Parameter 51V VTS Inhibit Default setting No This setting defines the operating voltage threshold of the element When the applied voltage is below this setting the element will pickup The voltage setting should be set to suit the individual application Parameter 51 n Element Default setting Disabled This setting is used to allow the element to be switched on and off if it is not required A s...

Page 233: ...s set as non directional then it will operate independently of the output of the directional detector However if a protection element is programmed for forward directional mode then operation will occur only for a fault lying within the forward operate zone Conversely if a protection element is programmed for reverse directional mode then operation will occur only for a fault lying within the reve...

Page 234: ... curve For IEC curves this value is traditionally in the range 0 to 1 6 and for ANSI curves a value of 0 to 15 is typically applied Parameter 51 n Delay DTL Default setting 5 s This is the time delay setting for the element when the Char is selected as DTL This should be set to suit the individual application This setting is not used if any other characteristic curve is selected Parameter Min Oper...

Page 235: ... the pickup will instantaneously reset completely and subsequent increase in current above setting will restart the operation delay from 0 1 s to 60 s The percentage operated state is retained when the current falls below setting for a period of the set delay Subsequent increase in current to above setting within the set delay will allow operation to resume from the partially operated state instea...

Page 236: ...e design Yes The element will be inhibited during any autoreclose shot which is designated as Delayed Incorrect configuration can result in no protection being enabled Parameter 21LB 3P Inhibit Default setting No Where the reverse load flow current may cause incorrect operation of directional overcurrent protection this function is used to inhibit the 51 function when the measured power factor is ...

Page 237: ...e inversely proportional to the fault current being measured This makes them particularly suitable to grading studies where it is important that only the relay s closest to the fault operate Discrimination can be achieved with minimized operating times To optimize the grading capability of the relay additional time multiplier Follower DTL or Minimum Operate Time settings can be applied dw_7SR5_IEC...

Page 238: ...fault current detected in the phase conductors will be limited Selection of Overcurrent Characteristics Each pole has 2 independent overcurrent characteristics Where required the 2 curves can be used To produce a composite curve To provide a 2 stage tripping scheme Where one curve is to be directionalized in the forward direction the other in the reverse direction The characteristic curve shape is...

Page 239: ...pound filled joint boxes or on clashing overhead line conductors The repeating process of the fault can cause electromechanical disc relays to ratchet up and eventually trip the faulty circuit if the reset time of the relay is longer than the time between successive faults To mimic an electromechanical relay the relay can be user programmed for an ANSI Decaying characteristic when an ANSI Operate ...

Page 240: ... 14400 s Δ 100 s 600 s Drop off Time 1 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 600 s Reduced Current Enabled Disabled Disabled Reduced Current Level 0 05 to 2 5 IratedV Δ 0 05 Irated 0 25 Irated Reduced Current Time 1 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 600 s Functi...

Page 241: ...1 s 0 s Reset IEC ANSI Decaying 0 to 60 s Δ 1 s 0 s VTS Action 8 Off Inhibit Non Dir Off 81HB2 Inhibit No Yes No 79 Delayed Inhibit No Yes No 21LB 3P Inhibit 8 No Yes No 21LB 1P Inhibit 8 No Yes No 51V Multiplier 8 0 25 to 1 Δ 0 05 0 5 Functions Protection 51 Gn 51CL n Parameter Setting Options Settings Default Gn1 Gn2 Gn3 Gn4 Element Enabled Disabled Disabled Setting 0 05 to 2 5 Irated Δ 0 01 Ira...

Page 242: ...rmation Mapping A51PTOC Mod Information 51 Overcurrent Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A51PTOC Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A51PTOC Health Information Device Healthy 0 1 A51PTOC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850...

Page 243: ...tion x x x 1 0 0 1 0 0 0 0 0 Element Phase B picked up and Fwd Direction x x x 0 0 0 0 1 0 1 0 0 Element Phase B picked up and Rev Direction 1 x 1 1 0 1 0 0 0 0 0 0 Element Phase C picked up and Fwd Direction 1 x x 0 0 0 0 1 1 0 0 0 Element Phase C picked up and Rev Direction x 1 x 1 1 0 0 0 0 0 0 0 A50PTOC Str dirGen eral 3 3 3 2 2 2 2 1 1 1 1 0 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850...

Page 244: ...mation Element Phase B picked up and Fwd Direction 0 1 0 Element Phase B picked up and Rev Direction 1 0 0 A51PTOC Str dirPhsB 2 1 0 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value No Dir 0 FWD 1 REV 2 Information Element Phase C picked up 0 1 A51PTOC Str phsC 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information Element Phase C picked up and Fwd Direct...

Page 245: ... Pickup Output 51 n PhA Operated Output 51 n PhB Operated Output 51 n PhC Operated Output 51 n Pickup 51 n Pickup Output 51 n 51 n Operated Output Y Y Y The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 5 14 7 P...

Page 246: ...ision of the 67G element Provides information regarding flow direction of earth current for selective application of earth fault protection Ensures selective fault detection for parallel lines or transformers with infeed at one end Ensures selective fault detection in cable runs with infeed at both ends or in lines connected to form ring topologies Where earth fault protection is directionalized c...

Page 247: ..._US Figure 5 24 Logic Diagram 51G Time Delayed Earth Fault Measured 5 15 3 Protection and Automation Functions 5 15 51G Time Delayed Earth Fault Measured Reyrolle 7SR5 Transformer Protection Device Device Manual 247 C53000 G7040 C015 1 Edition 11 2019 ...

Page 248: ...rovide true RMS measurement This method may be preferred for unbalance type protection where the unbalance applies at funda mental frequency and the risk of errors in transient response measurement can be avoided Parameter Dir Control Default setting Non Dir This setting is used to define whether the element will operate for earth faults detected in the Forward or Reverse direction based on the 67...

Page 249: ...ves can be configured in Reydisp Manager and added to the device configura tion The custom curve will appear as an additional option in the Char setting list using the name that is entered in Reydisp Manager for all elements for which the curve is applicable The characteristic can also be set as DTL see 51G n Delay The characteristic should be set to suit the individual application Parameter Time ...

Page 250: ... define whether the element pickup resets to 0 instantaneously when the current falls below setting or a reset curve characteristic or fixed DTL is applied This operation is signifi cant during intermittent faults where an induction disc device would be partially rotated when the fault current is reapplied Parameter Value Description IEC ANSI Decaying This selection applies a resetting curve to th...

Page 251: ... the non operate direction or not operate for faults in the operate direction Parameter 81HB2 Inhibit Default setting No High levels of inrush currents into reactive components such as transformers when they are switched can result in operation of overcurrent elements The inrush current can be detected by a high percentage of second harmonic current content by the 81HBL2 element This can be config...

Page 252: ...tance as any earth fault current that flows in the phase conductors will be limited Settings Menu Functions Function Config Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 51G Earth Fault Enabled Disabled Disabled Functions Protection 51G Gn 51G n Parameter Setting Options Settings Default Gn1 Gn2 Gn3 Gn4 Element Enabled Disabled Disabled Measurement RMS Fundamental RMS Dir Control 9 Non Dir Forw...

Page 253: ... Information 51G Earth Fault Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A51GPTOC Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A51GPTOC Health Information Device Healthy 0 1 A51GPTOC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 A...

Page 254: ... No Dir 0 FWD 1 REV 2 Information List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 51G n Inhibit 51G n Input E F off on Control Y Y Y 51G n Pickup 51G n Pickup Output 51G n 51G n Operated Output Y Y Y The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be gene...

Page 255: ...ty uses the decision of the 67N element Provides information regarding flow direction of earth current for selective application of earth fault protection Ensures selective fault detection for parallel lines or transformers with infeed at one end Ensures selective fault detection in cable runs with infeed at both ends or in lines connected to form ring topologies Where earth fault protection is di...

Page 256: ...S Figure 5 26 Logic Diagram 51N Time Delayed Earth Fault Calculated 5 16 3 Protection and Automation Functions 5 16 51N Time Delayed Earth Fault Calculated 256 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 257: ... to operate only in a reverse direction Parameter Setting Default setting 0 5 x In 0 5 Irated This setting defines the operating current threshold of the element The calculated earth current must exceed this setting by a factor of 1 05 for pickup of the element The operation timing will then be dependent on the selected characteristic for the element setting The element pickup will reset when the ...

Page 258: ...alls below the minimum operate delay time dw_7SR5_minimumoperatingtimecurve 1 en_US Figure 5 27 Minimum Operating Time of the Curve This is traditionally used with recloser systems only and otherwise is recommended to be left at the default setting of 0 s Parameter Follower DTL Default setting 0 s This setting allows an additional time to be added to that achieved by the selected characteristic cu...

Page 259: ...ision and introduce an error This setting selects if operation of the 60VTS Voltage Transformer Supervision element automatically affects the operation of the element Parameter Value Description Off The function element operates with no consideration of the 60VTS element output status Inhibit When a VT failure is determined by the 60VTS function operation of the function element is inhibited Clear...

Page 260: ... far lower pickup levels than relays which detect excess current above load current in each phase conductor Earth fault relays are important where the fault path to earth is a high resistance one such as in highly arid areas or where the system uses high values of earthing resistor reactance as any earth fault current that flows in the phase conductors will be limited Settings Menu Configuration F...

Page 261: ...l Information Mapping A51NPTOC Mod Information 51N Earth Fault Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A51NPTOC Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A51NPTOC Health Information Device Healthy 0 1 A51NPTOC Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE ...

Page 262: ... x 1 0 0 1 0 0 0 0 0 A51NPTOC Str dirGen eral 3 3 3 2 2 2 2 1 1 1 1 0 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value No Dir 0 FWD 1 REV 2 FWD and REV 3 Information Element picked up 0 1 A51NPTOC Str general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information Element picked up and Fwd Direction 0 1 0 Element picked up and Rev Direction 1 0 0 A51NPTOC ...

Page 263: ... Output 51N n 51N n Operated Output Y Y Y The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager2 tool Serial Comms Events 5 16 7 Protection and Automation Functions 5 16 51N Time Delayed Earth Fault Calculated Reyrolle 7SR5 Transformer Protec...

Page 264: ...s Gn 1 to 4 This function corresponds to the logical nodes A59NITPTOV and A59NDTPTOV in IEC 61850 The neutral voltage displacement protection function is used in devices with VT inputs voltage measurement and is applied to the calculated sum of the VT1 2 3 inputs Alternatively the function can be configured to operate from the 4th voltage input measured voltage There is 1 definite time overvoltage...

Page 265: ... 1 en_US Figure 5 28 Logic Diagram 59N Neutral Voltage Displacement 5 17 3 Protection and Automation Functions 5 17 59N Neutral Voltage Displacement Reyrolle 7SR5 Transformer Protection Device Device Manual 265 C53000 G7040 C015 1 Edition 11 2019 ...

Page 266: ...he operating voltage threshold of the element The element will pickup if the voltage rises above this value This should be set to suit the individual application Parameter 59NDT n Delay Default setting 0 1 s This is the time delay setting for the DTL element This should be set to suit the individual application Parameter 59NIT n Setting Default setting Disabled This setting is used to allow the el...

Page 267: ...lements can be used as an alarm or monitoring function Triggering of waveform storage must be configured if required If the element is a tripping function it must be configured to a designated Trip Contact to trigger a Fault Record Settings Menu Functions Protection 59N Gn 59N Common Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 Input Selection Vn V4 Ph Ph Functions Protection 59N Gn 59NDT n Pa...

Page 268: ... TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A59NITPTOV Health Information Device Healthy 0 1 A59NITPTOV Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A59NITPTOV Op Information Element Operated 0 1 A59NITPTOV Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 5 17...

Page 269: ...rrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A59NDTPTOV Health Information Device Healthy 0 1 A59NDTPTOV Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A59NDTPTOV Str Information Element Phase picked up 0 1 A59NDTPTOV Str general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Protection and A...

Page 270: ...T Pickup Output Inhibit 59NIT Inhibit 59NIT Input 59NIT 59NIT Operated Output 59NIT Pickup 59NIT Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 5 17 7 Protection and Automation Functions 5 17 59...

Page 271: ...ow load conditions or Following load shedding or Islanded operation or disconnected generators Overvoltages can be caused by resonances between capacitor banks and line or transformer inductances Structure of the Function The single phase undervoltage function has group dependent settings These settings can be different in each settings group group numbers Gn 1 to 4 This function corresponds to th...

Page 272: ...ndividual application Parameter Hysteresis Default setting 3 This sets the drop off threshold for the undervoltage element The element will pickup if the voltage falls below the setting and will reset when the voltage recovers to the setting hysteresis voltage This setting is a percentage of the undervoltage setting The default setting of 3 is generally enough to avoid chatter of the element but c...

Page 273: ...lay 0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 0 1 s IEC 61850 Functional Information Mapping A59VxPTOV Mod Information 59Vx Overvoltage Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A59VxPTOV Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TE...

Page 274: ...mation List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 59Vx n Inhibit 59Vx n Input 59Vx n 59Vx n Operated Output Y Y Y 59Vx n Pickup 59Vx n Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the R...

Page 275: ...of the direc tional detector However if a protection element is programmed for forward directional mode then operation will occur only for a fault lying within the forward operate zone Conversely if a protection element is programmed for reverse directional mode then operation will occur only for a fault lying within the reverse operate zone Typically to achieve consistent settings the forward dir...

Page 276: ...en_US Figure 5 30 Logic Diagram 67 Directional Overcurrent Phase 5 19 3 Protection and Automation Functions 5 19 67 Directional Overcurrent Earth Fault 276 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 277: ...equence networks i e A C B the polarizing is corrected using the Configuration CT VT Phase Rotation setting The characteristic angle is the phase angle by which the reference voltage must be adjusted such that the directional detector gives maximum sensitivity in the forward operate zone i e when the operate current is in phase with the polarizing voltage A fault is determined to be in the selecte...

Page 278: ...a and Ic are detected as forward flowing currents and Ib is detected as reverse current flow then directional enable signals 67 FWD PhA and 67 FWD PhC will operate while phase the phase B directional enable signal will be inhibited Parameter 67G Char Angle Default setting 15 The 67G directional element provides forward and reverse outputs that can be used to control each measured earth fault eleme...

Page 279: ...c Parameter 67G Minimum Voltage Default setting 0 33 V This setting defines the minimum polarizing voltage level Where the measured voltage is below this level no directional output is given and protection elements set as directional will not operate This prevents mal operation under fuse failure MCB tripped conditions where noise voltages can be present Parameter 67GS Char Angle Default setting 1...

Page 280: ...etric component in the capacitive charging currents which are close to the directional zone boun dary can be used to indicate fault location It is advantageous to increase the directional limits towards 90 so that the directional boundary can be used to discriminate between faulted and healthy circuits This feature must be enabled for use with compensated networks only Parameter 67GS Wattmetric De...

Page 281: ...ts mal operation under fuse failure MCB tripped conditions where noise voltages can be present Settings Example Directional Protection A number of studies have been made to determine the optimum MTA settings e g W K Sonnemann s paper A Study of Directional Element Connections for Phase Relays The following figure shows the most likely fault angle for phase faults on overhead line and cable circuit...

Page 282: ...work Considering the D G feeder fault shown in Figure 5 35 the current magnitude through breakers C and D will be similar and their associated relays will have similar prospective operate times To ensure that only the Protection and Automation Functions 5 19 67 Directional Overcurrent Earth Fault 282 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 283: ...s current distribution may occur then the relay is set to Current Protection Phase Over current 67 2 out of 3 Logic Enabled Enabling 2 out of 3 logic will prevent operation of the directional phase fault protection for a single phase to earth fault Dedicated earth fault protection should therefore be used if required Directional Earth Fault The directional earth fault elements either measured dire...

Page 284: ...Ts are recommended for this application to achieve the necessary accuracy of residual current measurement dw_7SR5_function67SettingExample5 1 en_US Figure 5 37 Earth Fault Current Distribution In Compensated Network 3 methods are commonly employed to detect the wattmetric current 7SR5 devices can be configured to provide each of these methods dw_7SR5_function67SettingExample6 1 en_US Figure 5 38 E...

Page 285: ...nt Application of a wattmetric power characteristic The directional 50 51GS function element operation is subject to an additional sensitive residual power element which operates only on the real wattmetric compo nent of residual power Isolated Networks During earth faults on isolated distribution networks there is no fault current path to the source and subse quently no fault current will flow Ho...

Page 286: ...nder non fault conditions during unbalanced load when earth fault elements with very sensitive current settings are applied This is ensured by selecting a setting which is near to the minimum expected residual voltage during fault conditions High impedance earthing methods including compensated and isolated systems will result in high levels of residual voltage up to 3 times normal phase to neutra...

Page 287: ...le 95 to 95 Δ 1 15 Minimum Voltage 0 33 V to 3 V Δ 0 5 V 0 33 V Information List Input Output Matrix General Pickup User Logic Type 67 FWD PhA Output 67 REV PhA Output 67 FWD PhB Output 67 REV PhB Output 67 FWD PhC Output 67 REV PhC Output 67G FWD Output 67G REV Output Inhibit Wattmetric Input 67GS FWD Output 67GS REV Output Wattmetric Po Operated Output 67N FWD Output 67N REV Output The complete ...

Page 288: ...lement can be individually selected to measure frequency from the 3 phase voltage inputs e g VT1 2 3 or the 4th voltage input e g VT4 Each threshold frequency protection element can be set to operate as either an underfrequency or an overfre quency element Each element has a settable hysteresis band to avoid intermittent operation for frequency near to setting If 3 phase voltage is selected the ph...

Page 289: ...an be used to select the number of elements required Parameter Input Selection Default setting VT1 2 3 Each 81 element can be individually set to measure frequency from the 3 phase VT inputs or single phase VT input Parameter Operation Default setting Under Each 81 element can be individually set to be either an underfrequency or overfrequency element 5 20 3 5 20 4 Protection and Automation Functi...

Page 290: ...is picked up will be reset Reset of the inhibit will allow restart of the operating delay Frequency measurement is blocked when all phase phase line voltages fall below 30 V To allow the voltage to stabilize this under voltage inhibit will reset 300 ms after all line voltages recover to levels above 30 V Frequency measurement is blocked for changes in frequency above 15 Hz s Very high rates of fre...

Page 291: ...ow for system fault detection and clearance Timing between stages should allow for CB operation and system recovery following shedding of previous stage Element Setting Values 81 1 81 1 Element Enabled 81 1 81 1 Operation Under 81 1 81 1 Setting 49 5 Hz 81 1 81 1 Hysteresis 0 1 81 1 81 1 Delay 3 s 81 1 81 1 Input Selection VT1 2 3 81 2 81 2 Element Enabled 81 2 81 2 Operation Under 81 2 81 2 Setti...

Page 292: ...n3 Gn4 Element Enabled Disabled Disabled Input Selection VT1 2 3 VT4 VT1 2 3 Operation Under Over Under Setting 40 to 70 Hz Δ 0 01 Hz 49 5 Hz Hysteresis 0 to 2 Δ 0 1 0 1 Delay DTL 0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 1 s IEC 61850 Functional Information Mapping A81PTUF Mod Information 81 Frequency Enabled Function Config x 0 1 1...

Page 293: ...1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A81PTUF Str Information Element picked up 0 1 A81PTUF Str general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A81PTOF Mod Information 81 Frequency Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A81PTOF Mod stVal 5 5 2 1 Protection and Automation Functions ...

Page 294: ...nciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A81PTOF Str Information Element picked up 0 1 A81PTOF Str general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 81 n Inhibit 81 n Input 81 n 81 n Operated Output Y Y Y 5 20 7 Protection and Automati...

Page 295: ...containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events Protection and Automation Functions 5 20 81 Frequency Protection f or f Reyrolle 7SR5 Transformer Protection Device Device Manual 295 C53000 G7040 C015 1 Edition 11 2019 ...

Page 296: ...tection is defined by the position of the CTs and the transformer winding REF protection provides a low operate current fault setting for in zone earth faults and stability during external faults To achieve stability of the high impedance REF elements and limit overvoltages a series stabilizing resistor and a non linear resistor are wired into the scheme The operating voltage of the relay stabiliz...

Page 297: ...urrent to flow in the CT secondary circuit wiring The highest level of differential current will flow when one set of CTs is fully saturated providing zero output and all other CTs transform normally When fully saturated the CT secondary provides no current and it behaves as a resistance in the secondary circuit Differential current in the secondary circuit will flow either through this resistance...

Page 298: ...ed not be considered as it is effectively negligible relative to the burden of the stabilizing resistor The setting operate voltage Vset across the relay and stabilizing resistor at the relay operating current Iset fo_function87GHApplication SettingsFunction4 1 en_US Stabilizing resistor power rating must be sufficient for continuous operation at the circuit operate voltage Vset fo_function87GHApp...

Page 299: ...r should be used The optional component box includes both 3 phase resistors and 3 phase Metrosils Metrosils in the compo nent box have a C value of 1000 The chosen Metrosil C value must Ensure negligible current flows through the Metrosil at relay operate voltage Vset and Limit overvoltages for operational and safety reasons i e 1 09C IFintβ 3 kV A C value of 450 is generally acceptable where the ...

Page 300: ...rcuit components can be calculated in the following order dw_7SR5_function87GHApplicationAndSettingNotes2 1 en_US Figure 5 45 Procedure For Calculating High Impedance Differential Protection Settings Protection and Automation Functions 5 21 87GH Restricted Earth Fault Protection High Impedance 300 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 301: ...the user Required P O C 53 131 A Say 60 A Line CT LCT and Connection Details Turns ratio T 1 to 600 Voltage knee point VK 350 V Magnetising current Imag VK 40 mA CT secondary resistance RCT 7 5 Ω CT lead loop resistance RL 0 15 Ω max Neutral CT NCT and Connection Details Turns ratio T 1 to 600 Voltage knee point VK 350 V Magnetising current Imag VK 50 mA CT secondary resistance RCT 6 Ω CT lead loo...

Page 302: ...zing current is dependent on the relay operate voltage Vset This is not finalized yet so a provi sional value is chosen from the above i e 107 1 Vset 150 Say Vsetprov 120 V From CT magnetizing curve At 120 V IMAGLCT 9 mA and IMAGNCT 12 mA fo_function87GHApplication SettingsFunction24 1 en_US fo_function87GHApplication SettingsFunction25 1 en_US Metrosil Specification C Value Vset 120 V i e 100 V s...

Page 303: ...unction87GHApplication SettingsFunction18 1 en_US fo_function87GHApplication SettingsFunction7 1 en_US fo_function87GHApplication SettingsFunction19 1 en_US fo_function87GHApplication SettingsFunction20 1 en_US Summary of Relay Settings and Components 87GH 1 Element Enabled 87GH 1 Setting 0 06 A 87GH 1 Delay 0 s Rstab 2000 Ω 40 W continuous typical manufacturers data Metrosil diameter 75 mm Metros...

Page 304: ...0 95 Δ 0 005 Irated 0 2 Irated Delay DTL 0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 0 s IEC 61850 Functional Information Mapping A87GHPTOC Mod Information 87GH Restricted EF Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A87GHPTOC Mod stVal 5 5 2 1 5 21 5 5 21 6 Protection and Automation Functions 5...

Page 305: ... TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 A87GHPTOC Op Information Element Operated 0 1 A87GHPTOC Op general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 87GH n Inhibit 87GH n Input 87GH n 87GH n Operated Output Y Y Y 5 21 7 Protection and Automation...

Page 306: ...g the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events Protection and Automation Functions 5 21 87GH Restricted Earth Fault Protection High Impedance 306 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 307: ...f currents at each end of the protected zone Detection of differential current indicates a fault within the protected zone The calculation of the difference is determined through the current direction definition The current direction is defined as positive current flows towards the protected object The current difference results from the vector addition of the currents dw_7SR5_function87TStructure...

Page 308: ...tivity threshold of the differential protection and considers constant unbal ance current e g magnetizing current 87T BD S1 considers steady state errors during normal operating conditions These faults can occur for the following reasons Transformation errors in the current transformer and the input transformer of the device Adaptation deviations and tap changers in transformers with voltage contr...

Page 309: ...high level in the inrush current If the proportion of the 2nd harmonic exceeds the setting value blocking occurs The harmonics develop differently in the different phases If high 2nd harmonic current is detected in any phase it may be necessary to block all phases simultaneously dw_7SR5_function87TStructureOfTheFunction3 1 en_US Figure 5 50 Typical Inrush Current Curve If a transformer is operated...

Page 310: ...he Function lo_7SR5_87TlogicdiagramCommon 1 en_US Figure 5 52 Logic Diagram 87T Transformer Differential Protection Common Settings 5 22 3 Protection and Automation Functions 5 22 87T Transformer Differential Protection 310 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 311: ...3 Logic Diagram 87T Transformer Differential Protection Highset Settings Protection and Automation Functions 5 22 87T Transformer Differential Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 311 C53000 G7040 C015 1 Edition 11 2019 ...

Page 312: ...4 Logic Diagram 87T Transformer Differential Protection Biased Settings Protection and Automation Functions 5 22 87T Transformer Differential Protection 312 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 313: ...eference rated power is nominated for all inputs Srated The power of the highest rated winding is used as the reference rated power Parameter Gn 87T Common Wn ICT Connection Default setting Yy0 Applies the correct vector compensation to the line CT input currents The nominal current ratio of the virtual interposing CT is 1 1 Note that where Yd settings are applied some current distributions will r...

Page 314: ...y7 Dyn7 Yy0 0 Yd5 150 Dy7 Dyn7 Earthing Transformer Ydy0 0 Yd5 150 Dy9 Dyn9 Yy0 0 Yd3 90 Dy9 Dyn9 Earthing Transformer Ydy0 0 Yd3 90 Dy11 Dyn11 Yy0 0 Yd1 30 Dy11 Dyn11 Earthing Transformer Ydy0 0 Yd1 30 1 Y or y denotes an unearthed star connection on the HV or LV side of the transformer 2 YN or yn denotes an earthed star connection on the HV or LV side of the transformer 3 D or d denotes a delta ...

Page 315: ...s having 3 separate phase tanks each containing a phase core This construction facilitates transportation Each of the phase cores is not magnetically affected by the flux in the other phase cores These large single phase transformers are often auto transformers used on EHV transmission systems Both ICT settings are selected to Yy e g reactor motor generator applications Sum The level of even harmo...

Page 316: ...after checking the waveform record for the level of unbalance current Parameter Gn 87T BD Setting Default setting 0 2 x In 0 2 Irated This sets the minimum differential current pickup threshold This setting is selected to ensure stability in the presence of CT and relay errors when low levels of bias current are present i e low load levels The default setting is a practical value between sensitivi...

Page 317: ...during resonant conditions Parameter Gn 87T BD External Fault Default setting 2 4 x In 2 4 Irated When any measured bias current is above this level the Clearance Time timer is started see below Parameter Gn 87T BD Clearance Time Default setting 0 3 s Outputs from the External Fault detector are raised after elapse of this time delay These outputs can be used to indicate transformer overload condi...

Page 318: ...vers both transformer windings dw_7SR5_function87Tsettingsexample1 1 en_US Generally the procedure to calculate relay settings is carried out in the following order Establish System Parameters Transformer rated power impedance and rated winding voltages Transformer winding connections Transformer OLTC range CT ratios for each set of line and neutral CTs Calculate ICT Settings ICT Multipliers ICT C...

Page 319: ...n 90 MVA Yd11 Transformer dw_7SR5_function87Tsettingsexample3 1 en_US Figure 5 56 AC Connections Example 1 Protection and Automation Functions 5 22 87T Transformer Differential Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 319 C53000 G7040 C015 1 Edition 11 2019 ...

Page 320: ...2 ICT and W3 ICT Multiplier Settings The differential protection must process comparable currents and so the currents of each winding are referred to a reference power rating the largest winding power rating is used i e 90 MVA The outputs of the interposing CTs ICTOUT for each winding are balanced for system healthy conditions and transformer mid tap position the 1 05 factor applied to the LV wind...

Page 321: ...io 1250 1 W3 Phase Input 5 A W3 Phase CT Ratio 2000 1 Function Config Gn 87T BD Enabled 87T 87T Common Gn W1 ICT Multiplier 1 02 1 A input Gn W1 ICT Connection Yd11 Gn W2 ICT Multiplier 0 83 1 A input Gn W2 ICT Connection Ydy0 Gn W3 ICT Multiplier 0 45 1 A input Gn W3 ICT Connection Yd11 Protection and Automation Functions 5 22 87T Transformer Differential Protection Reyrolle 7SR5 Transformer Prot...

Page 322: ...7HS BOn Ln Configuration Binary Outputs Trip Config W1 CB Trip Contacts BOn W2 CB Trip Contacts BOn The Effects of An In Zone Earthing Transformer The in zone earthing transformer is a source of zero sequence fault current An earth fault on the delta side of the transformer external to the differential protection zone will cause zero sequence currents to flow in the CTs on the delta side of the tr...

Page 323: ...rrents to flow in a closed delta CT secondary connection of low impedance instead of in the differential relay operating coil As the transformer vector group has already been considered on the star side a Ydy0 ICT is used on the delta side winding Protection and Automation Functions 5 22 87T Transformer Differential Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 323 C53000 G7...

Page 324: ...lt current to flow in the secondary connections i e reduces the zero sequence impedance An earth fault on the LV side of the transformer external to the differential protection zone will cause zero sequence currents to flow in the CTs on the LV side without corresponding current to flow in the line CTs on the HV side If these zero sequence currents are allowed to flow through the differential elem...

Page 325: ...are 2 optional methods that can be used to for setting the 87T function element Solution 1 Figure 5 62 shows W1 and W2 CT secondary wiring crossed over to replicating the crossovers on the transformer primary connections dw_7SR5_function87Tsettingsexample10 1 en_US Figure 5 62 AC Connections Yd9 90 Transformer Non standard Secondary Connections An advantage of the above is that the relay can be se...

Page 326: ...correspond to the power system vector relationship i e Yd9 90 Relay instruments will indicate system quantities rather than transformer quantities Transformer with Primary Connections Crossed on One Winding Reversing the connections on only 1 side of the transformer will reverse the phase sequence of the system For this arrangement W1 and W2 CT secondary wiring must be crossed over to replicate th...

Page 327: ...point earthing affects all auto transformer windings connected to the electrical power system During earth faults coupling between both parts of the electrical power system occurs via the common earth point For the connections below it is recommended that the CT ratios are matched to the rated currents of the wind ings and that Ydy0 vector correction settings are used This is typical for auto tran...

Page 328: ...ons shown below the neutral point currents are monitored and connected to the device all currents flowing into the protection zone are measured The HV LV and neutral currents are summed Internal faults are detected with high sensitivity Higher sensitivity for earth faults can be achieved where the neutral point current is measured and included in a restricted earth fault protection The differentia...

Page 329: ...utral Point Feed dw_7SR5_function87Tsettingsexample16 1 en_US Figure 5 68 AC Connections for Auto Transformer Overall and REF Protection Protection and Automation Functions 5 22 87T Transformer Differential Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 329 C53000 G7040 C015 1 Edition 11 2019 ...

Page 330: ... feature 81HBL2 must be enabled as the magnetizing inrush currents in each phase will not balance Settings Menu Functions Function Config Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 87T Transformer Diff Enabled Disabled Disabled Functions Protection 87T Gn 87T Common Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 W1 ICT Multiplier 0 25 to 3 Irated Δ 0 01 1x W1 ICT Connection See 5 22 4 Appl...

Page 331: ... 01 p u 0 3x Gn Element Enabled Disabled Disabled Gn Setting 0 1 to 2 p u Δ 0 05 p u 0 2 Irated Gn S1 0 1 to 0 7x Δ 0 05 p u 0 2x Gn S1L 1 to 20 p u Δ 0 5 p u 4 Irated Gn S2 Type Line Curve Line Gn S2 1 to 2x Δ 0 1x 1 5x Gn Delay 0 to 1 s Δ 5 ms 0 s External Fault 1 Irated to 10 Irated Δ 0 05 Irated 2 4 Irated Clearance Time 0 s to 1000 s Δ 0 3 s Functions Protection 87T 87T HS n Parameter Range S...

Page 332: ...FF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 A81Hb2PHAR1 Str Information 81HBL2 PhA Pickup 0 1 x x 81HBL2 PhB Pickup 0 x 1 x 81HBL2 PhC Pickup 0 x x 1 A81Hb2PHAR1 Str general 0 1 1 1 Information 81HBL2 PhA Pickup 0 1 A81Hb2PHAR1 Str phsA 0 1 Information 81HBL2 PhB Pickup 0 1 A81Hb2PHAR1 Str phsB 0 1 Information 81HBL2 PhC Pickup 0 1 A81Hb2PHAR1 Str phsC 0 1 Device Annunciation ON TRUE 1 OFF F...

Page 333: ...61850 Value OK 1 WARNING 2 ALARM 3 A81Hb5PHAR1 Str Information 81HBL5 PhA Pickup 0 1 x x 81HBL5 PhB Pickup 0 x 1 x 81HBL5 PhC Pickup 0 x x 1 A81Hb5PHAR1 Str general 0 1 1 1 Information 81HBL5 PhA Pickup 0 1 A81Hb5PHAR1 Str phsA 0 1 Information 81HBL5 PhB Pickup 0 1 A81Hb5PHAR1 Str phsB 0 1 Information 81HBL5 PhC Pickup 0 1 A81Hb5PHAR1 Str phsC 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 6185...

Page 334: ...A units SIUnit 5 A A87BdPDIF1 DifAClc phsA units multiplier 0 1 Information Value 87BD Ib Operate A87BdPDIF1 DifAClc phsB instCVal mag f Measured Value Value A87BdPDIF1 DifAClc phsB cVal mag f Measured Value Value A87BdPDIF1 DifAClc phsB units SIUnit 5 A A87BdPDIF1 DifAClc phsB units multiplier 0 1 Information Value 87BD Ic Operate A87BdPDIF1 DifAClc phsC instCVal mag f Measured Value Value A87BdP...

Page 335: ... Value A87BdPDIF1 RstA phsB instCVal mag f Measured Value Value A87BdPDIF1 RstA phsB units SIUnit 5 A A87BdPDIF1 RstA phsB units multiplier 0 1 Information Value 87BD Ic Restrain A87BdPDIF1 RstA phsC cVal mag f Measured Value Value A87BdPDIF1 RstA phsC instCVal mag f Measured Value Value A87BdPDIF1 RstA phsC units SIUnit 5 A A87BdPDIF1 RstA phsC units multiplier 0 1 A87HsPDIF1 Mod Information Diff...

Page 336: ...tr general 0 1 1 1 Information 87HS PhA Pickup 0 1 A87HsPDIF1 Str phsA 0 1 Information 87HS PhB Pickup 0 1 A87HsPDIF1 Str phsB 0 1 Information 87HS PhC Pickup 0 1 A87HsPDIF1 Str phsC 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 87T HS Inhibit 87T HS Input 87T...

Page 337: ...utput 87T HB PhC 87T HB PhC Operated Output 87T Ext Fault PhA 87T Ext Fault PhA Operated Output 87T Ext Fault PhB 87T Ext Fault PhB Operated Output 87T Ext Fault PhC 87T Ext Fault PhC Operated Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reyd...

Page 338: ...338 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 339: ...40 6 2 60CTS CT Supervision 346 6 3 60VTS VT Supervision 351 6 4 74CC Close Circuit Supervision 355 6 5 74TC Trip Circuit Supervision 360 6 6 81HB2 Inrush Current Detection 365 6 Reyrolle 7SR5 Transformer Protection Device Device Manual 339 C53000 G7040 C015 1 Edition 11 2019 ...

Page 340: ... 50BF EF The circuit breaker fail function has 2 time delayed outputs For some systems only the first will be used and the CB failure output will be used to back trip the adjacent CB s On other systems however this output will be used to re trip the local CB to minimize potential disruption to the system if possible via a secondary trip coil and wiring The second CB failure stage will then be used...

Page 341: ...w the minimum phase protection setting current Parameter Ig Setting Default setting 0 05 x In 0 05 Irated When earth current is measured above this setting the CB is determined as being in the closed position i e current is still flowing The earth fault current setting must be set below the minimum earth fault protection setting current Parameter Delay 1 Default setting 60 ms See Settings Example ...

Page 342: ...irst CBF time delay 120 ms Trip relay operate time 10 ms CB tripping time 50 ms Reset time of measuring element 20 ms Margin 60 ms Overall second stage CBF time delay 260 ms The safety margin is extended by 1 cycle for the second CBF stage as this will usually involve a back trip of a busbar tripping scheme dw_7SR5_function50BFSettingExample1 1 en_US Figure 6 2 Single Stage Circuit Breaker Fail Ti...

Page 343: ...ip the circuit breaker is still closed when the 50BF n Delay setting has expired indicating that the fault has not been cleared If the 50BF CB Faulty input Input Config Input Matrix 50BF CB Faulty is energized when a CB trip is given then Delay 1 and Delay 2 will be by passed and the output given immediately IEC 61850 Functional Information Mapping A50BFRBRF Mod Information 50BF CB Fail Enabled Fu...

Page 344: ... IEC 61850 Value TRUE 1 FALSE 0 A50BFRBRF Str Information Element picked up 0 1 A50BFRBRF Str general 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Information List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Inhibit 50BF 1 Inhibit 50BF Input 50BF Delay 1 50BF Delay 1 Operated Output 50BF CB Faulty Input 50BF Mech Trip Input 50...

Page 345: ...50BF EF 50BF EF Operated Output Y Y Y The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events Supervision Functions 6 1 50BF Circuit Breaker Failure Protection 3 Pole Reyrolle 7SR5 Transformer Protection Device Device...

Page 346: ...ure is not raised The function has 2 element types 60CTS I CT supervision current reference CT and CT wiring connection faults are detected when 1 or 2 of the 3 input currents falls below the CT supervision current setting for a time in excess of the delay setting Outputs are available to indicate the faulted phase 60CTS V CT supervision voltage reference The presence of negative phase sequence NP...

Page 347: ...S I CT Supervision Current Reference lo_7SR5_60CTS Vlogicdiagram 1 en_US Figure 6 5 Logic Diagram 60CTS V CT Supervision Voltage Reference 6 2 3 Supervision Functions 6 2 60CTS CT Supervision Reyrolle 7SR5 Transformer Protection Device Device Manual 347 C53000 G7040 C015 1 Edition 11 2019 ...

Page 348: ...ng is used to allow the element to be switched on and off if it is not required Parameter Value Description Disabled This element is off and is not available Enabled The element is available for use and can be parame terized Parameter Gn 60CTS V Inps Default setting 0 1 x In 0 1 Irated If the measured negative phase sequence current is above this threshold without corresponding NPS voltage it coul...

Page 349: ...u Functions Function Config Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 60CTS CT Supervision Enabled Disabled Disabled Functions Supervision 60CTS 60CTS I Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 Element Enabled Disabled Disabled Setting 0 05 to 2 Irated Δ 0 05 Irated 0 05 Irated Delay DTL 0 03 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14...

Page 350: ...TS I PhC Operated Output Y Y Y Inhibit 60CTS Inhibit 60CTS 60CTS V Pickup Output 60CTS V 60CTS V Operated Output Y Y Y The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 6 2 6 Supervision Functions 6 2 60CTS CT S...

Page 351: ...d by NPS or ZPS current The presence NPS or ZPS voltages without the corresponding level of NPS or ZPS current can indicate a failure of 1 or 2 VT phases 3 Phase Failure Detection During normal load conditions PPS voltage and PPS load currents are measured within operating limits Meas urement of PPS load without corresponding PPS voltage can indicate 3 phase VT failure To ensure these conditions a...

Page 352: ...This element is off and is not available Enabled The element is available for use and can be parame terized Parameter Gn 60VTS Component Default setting NPS Selects the method used for the detection of loss of 1 or 2 VT phases i e ZPS or NPS components The sequence component voltage is derived from the line voltages suitable VT connections must be avail able The element has user settings 60VTS V a...

Page 353: ...g 0 1 x In 0 1 Irated If the balanced positive phase sequence current is below this threshold the 60VTS element will not detect a 3 phase VF failure Parameter Gn 60VTS IPPS Fault Default setting 10 x In 10 Irated If the balanced positive phase sequence current is above this threshold it is assumed that a fault is present and the 60VTS element will not detect a 3 phase VF failure Parameter Gn 60VTS...

Page 354: ...1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s 10 s Information List Input Output Matrix General Pickup User Logic Type Serial Protocol Inhibit 60VTS Inhibit 60VTS Input 60VTS 60VTS Operated Output Y 60VTS Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Repor...

Page 355: ...akers with phase segregated close coils or circuit breakers with a single common close coil 1 or more binary inputs can be mapped to 74CCS n The inputs are connected into the close circuit such that at least 1 input is energized when the close circuit wiring is intact If all mapped inputs become de energized due to a break in the close circuit wiring or loss of CB close supply an output is given a...

Page 356: ...etting Disabled A separate setting is provided for each element These settings can be used to select the number of elements required e g for circuit breakers with phase segregated or 1 common close coil 6 4 3 6 4 4 Supervision Functions 6 4 74CC Close Circuit Supervision 356 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 357: ...void giving spurious alarm messages while the circuit breaker is operating the input is given a 0 4 s drop off delay in the Input Config Binary Input Config menu To provide an alarm output a normally open binary output is mapped to 74TCS n or 74CCS n The following circuits are derived from UK ENA S15 standard schemes H5 H6 and H7 For compliance with this standard Where more than 1 device is used t...

Page 358: ...t therefore be suitable for some circuits which include an isolating link Scheme 3 Comprehensive dw_7SR5_function74TCSettingExample3 1 en_US Figure 6 10 Trip Circuit Supervision Scheme 3 H7 Scheme 3 provides full trip supervision with the circuit breaker Open or Closed Settings Menu Functions Function Config Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 74CC Close Circuit Enabled Disabled Disab...

Page 359: ... Input 74CC 3 Input A74CC 1 Inhibit Input A74CC 2 Inhibit Input A74CC 3 Inhibit Input 74CC 1 74CC 1 Operated Output 74CC 2 74CC 2 Operated Output 74CC 3 74CC 3 Operated Output Close Circuit Fail Operated Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature ...

Page 360: ...eakers with phase segregated trip coils or circuit breakers with a single common trip coil 1 or more binary inputs can be mapped to 74TCS n The inputs are connected into the trip circuit such that at least 1 input is energized when the trip circuit wiring is intact If all mapped inputs become de energized due to a break in the trip circuit wiring or loss of CB trip supply an output is given after ...

Page 361: ...setting Disabled A separate setting is provided for each element These settings can be used to select the number of elements required e g for circuit breakers with phase segregated or 1 common trip coil 6 5 3 6 5 4 Supervision Functions 6 5 74TC Trip Circuit Supervision Reyrolle 7SR5 Transformer Protection Device Device Manual 361 C53000 G7040 C015 1 Edition 11 2019 ...

Page 362: ...void giving spurious alarm messages while the circuit breaker is operating the input is given a 0 4 s drop off delay in the Input Config Binary Input Config menu To provide an alarm output a normally open binary output is mapped to 74TCS n or 74CCS n The following circuits are derived from UK ENA S15 standard schemes H5 H6 and H7 For compliance with this standard Where more than 1 device is used t...

Page 363: ...ot therefore be suitable for some circuits which include an isolating link Scheme 3 Comprehensive dw_7SR5_function74TCSettingExample3 1 en_US Figure 6 14 Trip Circuit Supervision Scheme 3 H7 Scheme 3 provides full trip supervision with the circuit breaker Open or Closed Settings Menu Functions Function Config Parameter Range Settings Default Gn1 Gn2 Gn3 Gn4 74TC Trip Circuit Enabled Disabled Disab...

Page 364: ...2 Input 74TC 3 Input A74TC 1 Inhibit Input A74TC 2 Inhibit Input A74TC 3 Inhibit Input 74TC 1 74TC 1 Operated Output 74TC 2 74TC 2 Operated Output 74TC 3 74TC 3 Operated Output Trip Circuit Fail Operated Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature ...

Page 365: ...81HB2 is summarized below High speed instantaneous operate characteristic Logic outputs are provided to block selected device functionality and for external indications Logic of the Function lo_7SR5_81HB2logicdiagram 1 en_US Figure 6 15 Logic Diagram 81HB2 Inrush Current Detection Application and Setting Notes Parameter 81HB2 Element Default setting Disabled This setting is used to allow the eleme...

Page 366: ...onent to funda mental frequency component for each phase is moni tored independently A2nd AFund B2nd BFund C2nd CFund All phases are inhibited when the ratio of second harmonic component to fundamental frequency component in any phase exceeds setting Phase The ratio of second harmonic component to funda mental frequency component for each phase is moni tored independently A2nd AFund B2nd BFund C2n...

Page 367: ...ormation 81HB2 2nd Harmonic Enabled Function Config x 0 1 1 Element Disabled 1 x 0 0 Element Inhibited x x 1 0 A81HB2PHAR Mod stVal 5 5 2 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 A81HB2PHAR Health Information Device Healthy 0 1 A81HB2PHAR Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNIN...

Page 368: ...nhibit 81HB2 Input 81HB2 81HB2 Operated Output 81HB2 Pickup Output The complete serial protocol information list containing the DNP3 IEC 60870 5 103 and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool Serial Comms Events 6 6 7 Supervision Functions 6 6 81HB2 Inrush Current Detection 368 Reyrolle 7SR5 Transformer P...

Page 369: ...Control Functions 7 1 Device Control Functions 370 7 2 52 Circuit Breaker Control 381 7 Reyrolle 7SR5 Transformer Protection Device Device Manual 369 C53000 G7040 C015 1 Edition 11 2019 ...

Page 370: ...c items are select before execute from the fascia From the selected screen the Enter key should be used to access the controllable item If no controllable items are configured the device will display a message to advise the user i i NOTE During device configuration plant items may be configured to display position only or as controllable items The display will flash the first controllable item on ...

Page 371: ...active must be entered to proceed with the control action If any logic interlocking has been created within the Reylogic the item may not change state and the operation blocked Control from Control Mode Menu Fascia Function Keys The device provides a number of preconfigured control items from the fascia menus From the Home Screen the Down arrow can be pressed to access the Main Menu The user can t...

Page 372: ...l from Binary Inputs When energized the binary inputs can be used for selected control functionality Select device local remote out of service operating modes Inhibit operation of function elements Reset counters and meters Initiate operation of associated circuit breaker open close Trigger data storage functions Initiate Control Mode menu functions See 3 4 Binary Inputs Control of Binary Outputs ...

Page 373: ... setting ID is active this will be required to be entered to make the selection These items can also be reset over the communications protocol These items can also be reset from a binary input or by creating a reset logic in the Reylogic tool i i NOTE The controlling action may be restricted by the devices operating mode which is managed in junction with the device operating mode parameters see 3 ...

Page 374: ... Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 LLN0 LEDRs Information Reset LEDs 1 LLN0 LEDRs ctlVal 1 0 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Interlocking Q0CILO1 Mod Information Reset Device x Q0CILO1 Mod stVal 1 Control Functions 7 1 Device Control Functions 374 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 E...

Page 375: ...ING 2 ALARM 3 Q0CILO1 EnaCls Information NOT Block Close CB 0 1 Q0CILO1 EnaCls stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Q0CILO1 EnaOpn Information NOT Block Open CB 0 1 Q0CILO1 EnaOpn stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 Control Functions 7 1 Device Control Functions Reyrolle 7SR5 Transformer Protection Device ...

Page 376: ...mation Device Healthy 0 1 SPDONSGGIO Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 SPDONSGGIO SPCSO Information SPDONS Off Open 1 SPDONS On Close 1 SPDONSGGIO SPCSO ctlVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value ON 1 OFF 0 Information SPDONS Status On Closed 0 1 SPDONSGGIO SPCSO stVal 0 1 Control Functions 7 1 Device Control...

Page 377: ...ue ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 SPDOESGGIO Health Information Device Healthy 0 1 SPDOESGGIO Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 SPDOESGGIO SPCSO Information SPDOES Off Open 1 SPDOES On Close 1 SPDOESGGIO SPCSO ctlVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value ON 1 OFF 0 Control Functions 7 1 Device Contr...

Page 378: ...evice Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 DPDONSGGIO Health Information Device Healthy 0 1 DPDONSGGIO Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 DPDONSGGIO DPCSO Information DPDONS Off Open 1 DPDONS On Close 1 DPDONSGGIO DPCSO ctlVal 0 1 Control Functions 7 1 Device Control...

Page 379: ... DPDOesGGIO2 DPDOesGGIO3 DPDOesGGIO4 DPDOESGGIO Mod Information Reset Device x DPDOESGGIO Mod stVal 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 DPDOESGGIO Health Information Device Healthy 0 1 DPDOESGGIO Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 Control Functions 7 1 Devi...

Page 380: ...50 Value ON 1 OFF 0 Information DPDOES Status Off Open 0 1 0 1 DPDOES Status On Closed 0 0 1 1 DPDOESGGIO DPCSO stVal 00 01 10 11 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value ON 1 OFF 0 Control Functions 7 1 Device Control Functions 380 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 381: ... Manual Close will initiate switch onto fault protection if 50SOTF is enabled If a fault appears on the line during the Close Pulse or during the Reclaim Time with Line Check enabled the relay will initiate a trip and Lock out This prevents a CB being repeatedly closed onto a faulted line Where Line Check Trip Delayed then instantaneous protection is inhibited until the reclaim time has elapsed Ma...

Page 382: ...tatuslogicdiagram 1 en_US Figure 7 2 Logic Diagram 52 Circuit Breaker Control Status 7 2 3 Control Functions 7 2 52 Circuit Breaker Control 382 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 383: ...logicdiagram 1 en_US Figure 7 4 Logic Diagram 52 Circuit Breaker Control I2t Counters Application and Setting Notes Parameter CB n Close CB Pulse Default setting 2 s 7 2 4 Control Functions 7 2 52 Circuit Breaker Control Reyrolle 7SR5 Transformer Protection Device Device Manual 383 C53000 G7040 C015 1 Edition 11 2019 ...

Page 384: ...ameter CB n Blocked Close Delay Default setting 5 s The close command may be delayed by a Block Close CB signal applied to a binary input This causes the feature to pause before it issues the CB close command and can be used for example to delay CB closure until the CB energy has reached an acceptable level If the block signal has not been removed before the end of the defined time Blocked Close D...

Page 385: ...counter Parameter CB n Open Pulse Default setting 1 s The duration of the CB open pulse is user settable to allow a range of CBs to be used The CB open pulse must be long enough for the CB to physically open Parameter CB n DBI Alarm Default setting 0 s The CB Open and CB Closed binary inputs are continually monitored to track the CB Status A Don t Believe it DBI condition exists for a 1 1 state i ...

Page 386: ...ned maintenance of the CB can be scheduled The setting is in primary current so the effect of the CT ratios must be considered The algorithm works on a per phase basis measuring the CB contact arcing current measured during CB opening to clear the fault Arcing current flows from the point of contact separation until the fault is cleared The I2t value at the time of trip is added to the previously ...

Page 387: ...Open Pulse 1 s DBI Alarm 0 s Trip Time Alarm 0 2 s Trip Time Adjust 0 015 s Functions Control 52 CB n Counters Parameter Setting Options Settings Default Gn1 Gn2 Gn3 Gn4 Total Trip Count Enabled Disabled Disabled Total Trip Count Target 100 Delta Trip Count Enabled Disabled Disabled Delta Trip Count Target CB Frequent Ops Count Enabled Disabled Disabled CB Freq Ops Count Target CB Count to 79 Bloc...

Page 388: ... Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 Q0XCBR Health Information Device Healthy 0 1 Q0XCBR Health stVal 3 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value OK 1 WARNING 2 ALARM 3 Q0XCBR BlkCls Information CB Control Close Block 0 1 Q0XCBR BlkCls stVal 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value TRUE 1 FALSE 0 7 2 6 Control Functions 7 2...

Page 389: ...N TRUE 1 OFF FALSE 0 IEC 61850 Value INTERMEDIATE STATE 00 OFF 01 ON 10 INVALID STATE 11 Q0XCBR SumSwARs1 Information Measurand Value CB Wear PhA Q0XCBR SumSwARs1 stVal 0 to 10000 Q0XCBR SumSwARs2 Information Measurand Value CB Wear PhB Q0XCBR SumSwARs2 stVal 0 to 10000 Q0XCBR SumSwARs3 Information Measurand Value CB Wear PhC Q0XCBR SumSwARs3 stVal 0 to 10000 Q0CSWI1 Mod Information Reset Device x...

Page 390: ...us 0 1 0 1 CB Closed Status 0 0 1 1 Q0CSWI1 Pos stVal 00 01 10 11 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value INTERMEDIATE STATE 00 OFF 01 ON 10 INVALID STATE 11 CNTDELGGIO1 Mod Information Reset Device x CNTDELGGIO1 Mod stVal 1 Device Annunciation ON TRUE 1 OFF FALSE 0 Irrelevant x IEC 61850 Value ON 1 BLOCKED 2 TEST 3 TEST BLOCKED 4 OFF 5 Control Functions 7 2 52 Circuit Breaker Co...

Page 391: ...000 Information CB Delta Trip Count Target Value 0 to 10000 CNTDELGGIO1 ISCSO2 Oper ctlVal Value 0 to 10000 CNTDELGGIO1 SPCSO Information CB Delta Trip Count Target Reached 0 1 CNTDELGGIO1 SPCSO 0 1 Device Annunciation ON TRUE 1 OFF FALSE 0 IEC 61850 Value FALSE 0 TRUE 1 Information List Input Output Matrix General Pickup User Logic Type IEC 60870 5 1 03 DNP3 MODBUS RTU Close CB Close CB Input Blo...

Page 392: ...et Freq Ops Count Input Reset CB Count to 79 LO Reset CB Count to 79 LO Input CB Total Trip Count CB Total Trip Count Operated Output CB Delta Trip Count CB Delta Trip Count Operated Output CB Freq Ops Count CB Freq Ops Count Operated Output Count to 79 LO CB Count to 79 LO Operated Output Reset CB I2t Wear Reset CB I2t Wear Input CB I2t Wear CB I2t Wear Operated Output The complete serial protoco...

Page 393: ...Instruments and Meters 8 1 Introduction 394 8 2 Instruments 395 8 3 Notes 402 8 Reyrolle 7SR5 Transformer Protection Device Device Manual 393 C53000 G7040 C015 1 Edition 11 2019 ...

Page 394: ...ions interface The primary values are calculated using the CT and VT parameters i e the values entered in the Configura tion CT VT menu see section 3 3 CT and VT Inputs The user can add the meters that are most commonly viewed to a Favorites window by pressing the Enter key when viewing a meter The relay will display the favorite meters after elapse of the Configuration Device Favorite Meters Time...

Page 395: ...h Ph Voltage VAB VBC VCA V Sec Ph Ph Voltage Vab Vbc Vca V Nom Ph Ph Voltage Vab Vbc Vca Vrated Prim Ph N Voltage VA VB VC Irated Sec Ph N Voltage Va Vb Vc Irated Nom Ph N Voltage Va Vb Vc Vrated Sequence V1 V2 V0 V Calculated Earth Pri Sec V Last Trip Voltage VA VB VC V Voltage V4 Pri Sec Nom V Vrated Frequency Frequency V4 Frequency Hz Power P Phase A B C P 3P W Q Phase A B C Q 3P Var S Phase A ...

Page 396: ...arget n n CB Wear Phase A B C MA2 s CB Wear Remaining Phase A B C Auto Reclose Autoreclose State Autoreclose Close Shot n Fault Locator Distance Impedance Reactance km Miles see 3 6 Data Storage Miscellaneous Device Restart Alarm Count Device Restart Alarm Target n n Hrs In Service Time Hrs Date Time Waveform Recs Fault Recs dd mm yyyy hh mm ss n n Event Recs Data Log Recs Setting Group n n n Gene...

Page 397: ...Demand Max Min Mean V VCA Demand Max Min Mean V Frequency Demand Max Min Mean Hz P 3P Demand Max Min Mean W Q 3P Demand Max Min Mean Var S 3P Demand Max Min Mean VA PF 3P Demand Max Min Mean p u Binary Inputs BI1 to BIn 0 1 Binary Output BO1 to BOn 0 1 Virtual V1 to Vrated 0 1 Instruments and Meters 8 2 Instruments Reyrolle 7SR5 Transformer Protection Device Device Manual 397 C53000 G7040 C015 1 E...

Page 398: ... settings of the module do not match the parameter settings of the device The third function deals with the signaliza tion of a double IP address When a device starts up in the network the existence of the IP address is checked If the address already exists in the network a static infor mation to that effect is displayed in line 6 6 MAC 0007E908FCC8 In that case the device will not be connected to...

Page 399: ...away but that the driver due to aging is no longer able to deliver a transmit output of 16 dBm2 Whether the connection as a whole is able to function depends also on the condition of the cables and the receiver Precise information is provided by the symbol error rate in the FEC statistics on the module home page see Ethernet Meter 13 LRx2 LTx2 As above Meter 12 Ethernet Meter 14 Switch RSTP Redund...

Page 400: ...ng to IEEE 802 the output window of the trans mitter is between 14 dBm and 20 dBm Port states In addition to the role played by them ports have states assigned to them The following states are defined Forwarding state F This is in normal operation the state of the ports which play the root or designated role i e payload telegrams are always trans mitted Discarding state D Discarding state means th...

Page 401: ...We can conclude from the information displayed that this device is the logical separating point in the optical ring Ethernet Meter 22 to 26 Internal data Quick Logic V1 to Vrated 0 1 Instruments and Meters 8 2 Instruments Reyrolle 7SR5 Transformer Protection Device Device Manual 401 C53000 G7040 C015 1 Edition 11 2019 ...

Page 402: ...s section 67 Directional Overcurrent Earth Fault Instrument Maintenance See 7 Control Functions section 52 Circuit Breaker Control Instrument Communications The communications meters display the information and activity The screen itself depends on the module type and is available only in English i i NOTE Ethernet meters 15 to 26 are not available for Line PRP and HSR The Ethernet meters are only ...

Page 403: ...irectional Earth Fault Functions 410 9 6 Circuit Breaker Test 413 9 7 Primary and Secondary Tests of the Circuit Breaker Failure Protection 414 9 8 Configuration Tests for Transformer Differential Protection 415 9 9 Restricted Earth Fault Protection 420 9 10 Protection Functional Tests 421 9 11 Supervision Functions 451 9 12 Control and Logic Functions 454 9 Reyrolle 7SR5 Transformer Protection De...

Page 404: ... and the group currently Viewed are shown at the top of the display in the Settings display screen If the View Group is not shown at the top of the display this indicates that the setting is common to all groups CT VT ratio I O mapping and other settings which are directly related to hardware are common to all groups If the relay is allowed to trip during testing then the instruments display will ...

Page 405: ...ry circuit fuses and links or close miniature circuit breakers Ensure the Protection Healthy LED is on and steady if configured and that all LED indications are correct If necessary press the X key until the Relay Identifier screen is displayed then press to reset the indication LEDs The relay meters should be checked in Instruments Mode with the relay on load The relay settings should be download...

Page 406: ...essing time and the operate time of the output relay BI Tested DO Delay Setting Measured PU Delay Setting Measured Notes method of initiation 1 2 3 4 5 6 7 8 9 10 11 12 13 Binary Outputs A minimum of 8 output relays are provided 2 of these have change over contacts BO1 and BO2 BO3 provides a normally closed contact typically used to indicate device health The remainder have normally open contacts ...

Page 407: ... settings required to suit the installed equipment should be verified by primary application and modified at the commissioning stage Voltage and current instruments should be used to ensure that the measurements align with the applied primary quantities If this feature is used it will cause modified voltage magnitude and phase to be measured when secondary voltages are directly applied to the devi...

Page 408: ... and voltage should be shown as positive sequence values with negligible negative sequence components If the value is displayed as negative sequence values with negligible positive sequence values the setting parameter Phase Rotation does not correspond to the supplied signals and connections If this parameter is incorrect this will invert the forward and reverse directions of directional protecti...

Page 409: ...ured values displayed in the instruments at the device make sure that it corresponds to the expected power direction P is positive if the active real power flows into the line or protected object P is negative if the active real power flows to the busbar or out of the protected object Q is positive if the inductive reactive power flows into the line or protected object Q is negative if the inducti...

Page 410: ... zero sequence voltage V0 the e n winding of 1 phase in the voltage transformer set for example phase A is bypassed see Figure 9 1 If no connection on the e n windings of the voltage trans former is provided the corresponding phase is disconnected on the secondary side see Figure 9 2 Only the current of the transformer in the phase of which the voltage is missing is transferred via the current cir...

Page 411: ...g for Isolated or Resonant Earthed Systems Primary Test The most reliable test is by application of a primary earth fault This is usually practical on these types of networks due to the low fault currents involved The primary test is used to provide a definitive evaluation of the correct polarity of the transformer connections for the determination of the earth fault direction Functional Tests 9 5...

Page 412: ...to energize the system with the primary short circuit applied Isolate the circuit at by opening the circuit breaker if it is not tripped already Check operation of the 50GS element and particularly 67GS Forward direction indication If Reverse direction is indicated as the fault direction this indicates that there is a wiring polarity problem that requires investigation and correction Apply safety ...

Page 413: ...signals may be required for correct operation of the relay Correct voltage levels and synchronizing conditions may be required for correct closing sequence operations Operating modes of the relay and interlocking logic can block plant operating commands This should be investigated if undesirable behavior occurs but the correct operation of such signals should also be checked Circuit breaker status...

Page 414: ...claim to be complete it can also contain points which are not applicable for all applications Circuit Breaker Auxiliary Contacts Correct configuration connection and operation of circuit breaker auxiliary contacts is essential for the correct operation of circuit breaker failure functionality Make sure that the correct assignment has been checked and operation tested Internal CB Fail Starting Cond...

Page 415: ...evices are connected and the trip commands to the circuit breakers are open otherwise the circuit breaker could be activated i i NOTE The measuring accuracy to be achieved depends on the electrical data of the used test sources In addition the protection accuracy tolerance is affected by the ICT Multiplier setting The claimed accuracy applies for ICT Multipliers set to 1 i i NOTE The thermal ratin...

Page 416: ...with their topology The test setup varies depending on the use case DANGER Dead components hazardous due to capacitive coupling of other system parts Failure to comply with the safety notes can result in death severe injury or considerable material damage Primary tests may be performed only on dead and earthed system parts Performance of Current Tests Before you begin with the first current test c...

Page 417: ...ollowing residual current tests are required If several neutral points are earthed it is necessary to perform the residual current tests for each of the earthed windings If the neutral point current is available and is conducted to the device via a 1 phase current input the polarity of the earth current connection is essential for taking the neutral point current into account This applies to the d...

Page 418: ...m4 1 en_US Figure 9 4 Residual Current Measurement on a Star Delta Transformer lo_7SR5_FunctionalTestsLogicDiagram5 1 en_US Figure 9 5 Residual Current Measurement on a Star Delta Transformer with Stabilizing Winding Functional Tests 9 8 Configuration Tests for Transformer Differential Protection 418 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 419: ...en_US Figure 9 7 Residual Current Measurement on a Zigzag Winding lo_7SR5_FunctionalTestsLogicDiagram8 1 en_US Figure 9 8 Residual Current Measurement on a Delta Winding with Earthing Transformer Functional Tests 9 8 Configuration Tests for Transformer Differential Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 419 C53000 G7040 C015 1 Edition 11 2019 ...

Page 420: ...Inspection of connection markings is possible but may not be totally conclu sive The high impedance resistor should be short circuited to reduce the driving voltage requirements of the test equipment The REF spill current should be measured at the relay and should be an order of magnitude less than the relay setting lo_7SR5_FunctionalTestsLogicDiagram9 1 en_US Figure 9 9 Test with High Current Tes...

Page 421: ...enabling all of the relevant applicable elements or the element operations can be separated or disabled and tested individually All relay settings should be checked before testing begins It is recommended that the relay settings are extracted from the relay using Reydisp Evolution software and a copy of these settings is stored for reference during and after testing It may be necessary to disable ...

Page 422: ... achieve the relay impedance setting with nominal voltage If this is possible without exceeding relay thermal rating it can be injected manually Increase the current until the Load Blinder FWD resets If the current required will exceed the continuous rating short duration tests will be required at 90 of impedance setting Alternatively voltage can be reduced to allow lower current to be applied to ...

Page 423: ...tage should be connected to suit If the Pickup Option is set to All the voltage on all phases must be reduced simultaneously Otherwise the 3 phases should be tested individually Balanced nominal rated voltage should be connected to the 3 phases If the DTL is short starting from nominal voltage slowly decrease the applied 3P or appropriate single phase test voltage until the Pickup LED temporarily ...

Page 424: ...he 27 elements but are applied to the fourth voltage input Vx Where more than one 27Vx undervoltage elements are being used with different settings it is convenient to test the elements with the lowest settings first The elements with higher settings can then be tested without disabling the lower settings Note that if the voltage is reduced below the UV Guard setting threshold the function may be ...

Page 425: ...ncludes any undervoltage element which is not UV guarded Phase Setting Volts Tolerance V Element Used for Test Blocked Volts Notes Vx UVG 37 Undercurrent Protection Phase If 2 undercurrent 37 elements are used with different settings it is convenient to test the element with the lowest setting first The higher setting element can then be tested without interference from the other element Apply 3 p...

Page 426: ...et Tolerance CT4 IG Element Blocking The undercurrent elements can be blocked by Binary Input Inhibit This functionality should be checked Element BI Inhibits 37G 1 37G 2 Element Blocking from Current Guard The elements can be blocked by the undercurrent guard function This functionality should be checked Element Guard Setting Blocked 37G 1 37G 2 Check correct phase indication trip output alarm co...

Page 427: ...d record operating time Apply 5 times setting current and record operating time Compare to calculated values for operating times P U D O Timing Tests Ph Dir Char NI EI VI LTI DTL Iset A Tm Operate Current Operate Time P U Amps D O Amps Tol 2 Iset sec 5 Iset sec Tol NPS Calculated timing values in seconds for Tm 1 0 Curve 2 Iset 5 Iset IEC NI 10 03 4 28 IEC VI 13 50 3 38 IEC EI 26 67 3 33 IEC LTI 1...

Page 428: ...oduced directly from many advanced test sets but with limited equipment the following approach can be applied Apply 3P balanced current with normal phase rotation direction This current will consist of PPS alone no NPS or ZPS Increase 1 phase current magnitude in isolation to produce NPS The single phase unbalance current will contain equal quantities of ZPS NPS and PPS The NPS component will be 1...

Page 429: ...voltage element can be blocked by Binary Input Inhibit This functionality should be checked Element BI Inhibits 47 1 47 2 Check correct indication trip output alarm contacts waveform record Undervoltage Guard 47 U V Guard If any 47 NPS overvoltage element is set to be inhibited by the 47 undervoltage guard element this function should be tested Connect the test voltage inputs to suit the installat...

Page 430: ...If the Thermal Overload Capacity Alarm is used this can be tested by monitoring the Thermal Capacity in the instruments menu If the Thermal Time Constant is longer than a few minutes this can be assessed during the timing test above If the Time Constant is less than a few minutes a lower multiple of current will be required such that the rate of capacity increase is slowed to allow monitoring of t...

Page 431: ...ase current until Pickup LED operates Apply 2 times setting current and record operating time Apply 5 times setting current and record operating time Compare to calculated values for operating times Gradually reduce current until the element drops off and record the level Table 9 4 P U D O Timing Tests Phase Dir Char Curve Iset Amps Tm Operate Current Operate Time P U Amps D O Amps Tol 2 Iset sec ...

Page 432: ... element at this current level Repeat the test with the reset time b reduced to 50 of the previous value Ensure that the second operate time c is 50 of the first a operate time Operate Time expected Reset Time calculated Operate Time measured 50 Reset Time calculated 50 Operate Time calcu lated 50 Operate Time meas ured First test c Second Test c Check correct indication trip output alarm contacts...

Page 433: ...imes setting check operation Apply 2 times setting current if possible and record operating time Check correct indication trip output alarm contacts waveform record Note that these elements can be set to directional Phase Dir Iset Amps DTL sec P U Current Amps Op Time 2 Iset Notes CT4 If VTS action is set to Block this option should be tested Apply balanced voltage and current Reduce a phase volta...

Page 434: ...ase current and check that the element oper ates at its normal setting Reverse the voltage phase direction whilst checking that the element does not reset Element Blocking The Measured Earth Fault elements can be blocked by Binary Input Inhibit VT Supervision and Inrush Detector operation The characteristic can be made non directional by VT Supervision This functionality should be checked Element ...

Page 435: ...ime to ensure element operation b Zero current for the reset time above xTm c 2 times setting for a time to ensure element operation Check that the second operation c is similar to the first a and in line with the expected operate time for the element at this current level Repeat the test with the reset time b reduced to 50 of the previous value Ensure that the second operate time c is 50 of the f...

Page 436: ...nt and check that the element oper ates at its normal setting Reverse the voltage phase direction whilst checking that the element does not reset Inverse Time Overcurrent 51N It will be advantageous to map the function being tested to temporarily drive the relevant pickup output in the Pickup Config sub menu in the Output Config menu as this will allow the Pickup LED to operate for the function Gr...

Page 437: ... Repeat the test with the reset time b reduced to 50 of the previous value Ensure that the second operate time c is 50 of the first a operate time Operate Time expected Reset Time calculated Operate Time measured 50 Reset Time calculated 50 Operate Time calcu lated 50 Operate Time meas ured First test c Second Test c Check correct indication trip output alarm contacts waveform record IEC Reset If ...

Page 438: ...t Time Check the Cold Load Pick up Delay by applying or simulating CB Open Measure the time delay before Cold Load Active is raised Apply current above the Reduced Current Level if this functionality is Enabled before applying CB Closed Measure the time for Cold Load Active to reset It will be advantageous to map the function being tested to temporarily drive the relevant pickup output in the Pick...

Page 439: ... configured as an IEC characteristic it may have an IEC decaying reset delay applied IEC reset times from operated condition to fully reset are as follows for zero applied current and Time multi plier Tm 1 0 The reset curve characteristic type and Tm is defined by the operating characteristic Curve Fully Operated to Reset with Zero Current Applied Tm 1 s IEC NI 9 7 IEC VI 43 2 IEC EI 58 2 IEC LTI ...

Page 440: ...ent via CT1 and returning through CT2 Gradually increase the a b phase current or balanced 3P current until Pickup LED operates Confirm result of phase O C test above Reduce the applied voltage to a level such that VAB phase phase voltage is less than 90 of the setting The element threshold is operated by phase to phase voltage but the most common connection of the 3 phase voltage inputs is phase ...

Page 441: ... at the Operate Time setting 5 test the other phases by repeating the above if necessary Phase Setting Volts U O DTL sec Hyst D O calcu lated P U Volts D O Volts Op Time 1 2 Vset OV 0 5 Vset UV UV Guard Toler ance VA VAB VBBCAB VCCAAB Element Blocking The Under Over Voltage elements can be blocked by Binary Input Inhibit and VT Supervision This functionality should be checked Element BI Inhibits V...

Page 442: ...ts are being used with different settings it is convenient to test the elements with the highest settings first The elements with lower settings can then be tested without disabling the lower settings Single phase voltage should be connected to the Vx input directly If the DTL is short starting from nominal voltage slowly increase the applied test voltage until the Pickup LED temporarily mapped is...

Page 443: ... an aid to commissioning testing 1 Check the direction of each pole in turn by connecting to the appropriate terminals The following table shows the polarizing quantity for each pole Table 9 8 Connections for Directional Polarity Overcurrent Pole Polarizing Voltage Phase A VBC Phase B VCA Phase C VAB 2 Inject single phase rated current and apply single phase phase rated voltage at the Char Angle M...

Page 444: ...e the voltage until the element resets Record the minimum phase phase operate voltage Minimum Voltage Setting Measured 2 Out Of 3 Logic Ensure that at least 1 Phase Overcurrent element is set to Directional Apply balanced nominal voltage Apply current at a level above the 50 51 setting on phase A only at the characteristic angle for forward operation normally 45 lagging Ensure no Directional Phase...

Page 445: ...ltage on the faulted phase e g for a relay setting of 15 set the phase current to lag the ph n voltage by 15 Alternatively a single phase voltage source can be used in the above test The polarity of this voltage applied to the faulted phase neutral alone must be reversed to produce the same residual voltage Vres phase direc tion as that produced by the 3P voltage simulation described above For the...

Page 446: ...t the operation of the element can be easily checked directly The frequency should then be gradually decreased increased until the element resets The reset frequency can be used to check the Hysteresis setting Apply setting frequency 0 5 Hz for over frequency or 0 5 Hz for under frequency and record operating time Starting with the element in the operated condition gradually increase or decrease t...

Page 447: ...ial Protection Biased The differential elements are subjected to CT multipliers Vector Group Compensation and Zero Sequence filters when applied to power transformers The complexity of these features can cause confusion during testing and lead to incorrect relay settings being applied It is recommended that the accuracy of the differential elements are tested by secondary injection with simplified...

Page 448: ...t For testing above this level the continuous current rating of the relay inputs is likely to be exceeded equipment or test procedure should be arranged in such a way that the short term thermal withstand of the relay current inputs is not exceeded during testing lo_7SR5_87TFunctionalTests 1 en_US Figure 9 12 Secondary Injection using a Variac Table 9 9 Results for testing 87BD with a Variac 87BD ...

Page 449: ...jected current and the relay setting Note that operation of the element can be achieved at a lower level of current if a higher ICT Multiplier setting is applied During testing the operate current can be monitored on the relay in the Instruments menu Primary Injection Testing Primary injection is recommended to prove the relay connections CT polarity and settings before putting the protection sche...

Page 450: ...ifferential Meters in Instruments mode Check each phase in turn ensuring that the phase angle for W1 Relay is in anti phase with W2 Relay When the transformer is eventually energized and carrying load current the above examination of the W1 and W2 relay current phase angle should be re checked for anti phase to ensure that the correct ICT Connec tion settings are applied to the differential protec...

Page 451: ...rrent 50BF 1 Delay 50BF 2 Delay 110 90 No Operation No Operation 50BF CB Faulty Operation No Delay Operation No Delay 50BF I4 Setting Irated Test Current 50BF 1 Delay 50BF 2 Delay 110 90 No Operation No Operation 50BF CB Faulty Operation No Delay Operation No Delay If the circuit breaker can also receive a trip signal from a protection function where there is no increase in current this trip input...

Page 452: ...t setting Reduce the balanced voltage on all 3 phases until the VTS operates at the 60VTS V1 setting Return the voltage to nominal and ensure that VTS resets Reduce the 3P balanced current to a level below the 60VTS I1 Load setting Reduce the 3P balanced voltage to a level below the operate level above Gradually increase the 3P balanced current until the VTS operates Check that the thermal rating ...

Page 453: ...ied to provide additional security if compo nent failure results in a short circuit 81HB2 Inrush Current Detection Logical operation of the harmonic blocking can be tested by current injection at 100 Hz for 50 Hz devices or 120 Hz for 60 Hz devices to cause operation of the blocking signals No fundamental frequency is required To test the pickup setting of the 81HB2 element it is necessary to inje...

Page 454: ...Logic equations should be tested conjunctively with connected plant or by simulation to assess suitability and check for correct operation on an individual basis with tests specifically devised to suit the particular application 9 12 9 12 1 Functional Tests 9 12 Control and Logic Functions 454 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 455: ... Time Delayed Earth Fault Measured 481 10 18 51N Time Delayed Earth Fault Calculated 483 10 19 51V Voltage Dependent Overcurrent Phase 485 10 20 59N Neutral Voltage Displacement 486 10 21 59Vx Overvoltage Protection Vx 488 10 22 60CTS I CT Supervision Current Reference 489 10 23 60VTS VT Supervision 490 10 24 67 Directional Overcurrent Phase 491 10 25 67G Directional Earth Fault Measured 492 10 26...

Page 456: ...V Vrated I 10 to 200 Irated PF 0 8 3 Srated where Srated Vrated Irated VAr Reactive power Q VA Apparent power S PF Power factor V Vrated 10 to 200 Irated PF 0 8 0 05 f Frequency 47 5 to 52 5 Hz 50 Hz 57 to 63 Hz 60 Hz 10 mHz 10 1 10 1 1 Technical Data 10 1 General Device Data 456 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 457: ...lue φop Operating angle Forward φ set 5 to φ set 5 Reverse 180 φ set 5 to 180 φ set 5 Single Phase Load Blinder 21LB 1P Reference Parameter Value I0 set I0 level setting 0 05 Irated to 5 Irated V1 set V1 level setting 1 V to 110 V φ set Angle ve setting 5 to 85 φ set Angle ve setting 5 to 85 Zset Impedance setting 1 Ω to 100 Ω Operate and Reset Level Attribute Value Vop V1 operate level Vset 2 or ...

Page 458: ...ated 5 5 Operate Angle Attribute Value φop Operating angle Forward φ set 5 to φ set 5 Reverse 180 φ set 5 to 180 φ set 5 Technical Data 10 2 21LB Load Blinder 458 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 459: ... Value V fop Operate level 100 V fset 2 or 0 02 Reset level 97 of V fop Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 1 1 V fset 400 ms 200 ms 2 V fset 320 ms 200 ms top Operate time following delay tbasic tdelay 1 or 200 ms Repeatability 1 Disengaging time 250 ms Inverse Time Element 24IT Reference Paramete...

Page 460: ...to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 500 ms 300 ms top Operate time following delay tbasic tdelay 1 or 2 s Repeatability 1 Disengaging time 250 ms Technical Data 10 3 24 Overexcitation Protection 460 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 461: ...0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 1000 to 14400 s Δ 100 s Operate and Reset Level Attribute Value Vop Operate level Vset 2 or 0 5 V Reset level 100 hysteresis Vop 1 or 0 25 V Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 0 5 Vset 63 ms 10 ms top Operate time fo...

Page 462: ...0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 1000 to 14400 s Δ 100 s Operate and Reset Level Attribute Value Vop Operate level Vset 2 or 0 5 V Reset level 100 hysteresis Vop 1 or 0 25 V Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 0 5 Vset 63 ms 10 ms top Operate time fo...

Page 463: ...elay setting 0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 1000 to 14400 s Δ 100 s Operate and Reset Level Attribute Value Iop Operate level Iset 5 or 1 Irated Reset level 105 Iop or Iop 1 Irated Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 0 5 Iset 50 ms 10 ms top Operat...

Page 464: ...ute Value Iop Operate level Iset 5 or 1 Irated Reset level 105 Iop 1 Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 0 5 Iset 50 ms 10 ms top Operate time following delay tbasic tdelay 1 or 10 ms Repeatability 1 or 10 ms Overshoot time 40 ms Disengaging time 60 ms 10 7 Technical Data 10 7 37G Undercurrent Eart...

Page 465: ...5 Operate and Reset Time Attribute Value tbasic Element basic operate time 2 Iset 40 ms 10 ms 5 Iset 30 ms 10 ms tdelay char DTL tdelay 1 or 30 ms Repeatability 1 or 10 ms Overshoot time 40 ms Disengaging time 90 ms Inverse Time Element 46IT Reference Parameter Value char Characteristic setting IEC NI VI EI LTI ANSI MI VI EI DTL Tm Time multiplier setting 0 025 to 1 6 Iset Setting 0 05 to 2 5 Irat...

Page 466: ... 13 5 α 1 IEC EI K 80 α 2 IEC LTI K 120 α 1 char ANSI MI ANSI VI ANSI EI 5 or 50 ms ANSI MI A 0 0515 B 0 114 P 0 02 ANSI VI A 19 61 B 0 491 P 2 ANSI EI A 28 2 B 0 1217 P 2 char DTL tdelay 1 or 20 ms Reset time ANSI Decaying 5 or 50 ms ANSI MI R 4 85 ANSI VI R 21 6 ANSI EI R 29 1 treset treset 1 or 20 ms Repeatability 1 or 20 ms Overshoot time 40 ms Disengaging time 60 ms Technical Data 10 8 46 Neg...

Page 467: ...time tdelay Delay setting 0 03 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 1000 to 14400 s Δ 100 s Operate and Reset Level Attribute Value Iop Operate level Iset 5 Reset level 90 Iop 5 Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 40 ms 10 ms top Operate time following del...

Page 468: ...o 10 Vset switched Hysteresis Hysteresis 0 to 80 Δ 0 1 tdelay Delay setting 0 to 20 s Δ 0 01 s 20 to 100 s Δ 0 1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 1000 to 14400 s Δ 100 s Operate and Reset Level Attribute Value Vop Operate level Vset 2 or 0 5 V Reset level 100 hysteresis Vop 2 or 0 5 V Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value...

Page 469: ...peatability 1 or 20 ms Overshoot time 40 ms Disengaging time 90 ms Technical Data 10 10 47 Sequence Overvoltage Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 469 C53000 G7040 C015 1 Edition 11 2019 ...

Page 470: ... min 15 min 20 min 30 min 50 min 100 min 1 2 35 57 71 14 142 27 213 41 355 69 711 37 1067 0 6 1422 7 5 2134 1 2 3556 8 7 7113 7 4 1 5 17 63 35 27 70 53 105 8 176 34 352 67 529 01 705 34 1058 0 2 176 36 3526 7 2 2 8 63 17 26 34 52 51 78 86 3 172 61 258 91 345 22 517 83 863 05 1726 0 9 2 5 5 23 10 46 20 92 31 38 52 31 104 61 156 92 209 22 313 84 523 06 1046 1 2 3 3 53 7 07 14 13 21 2 35 33 70 67 106...

Page 471: ...1 169 03 7 0 62 1 24 2 47 3 71 6 19 12 37 18 56 24 74 37 11 67 86 123 72 8 0 47 0 94 1 89 2 83 4 72 9 45 14 17 18 90 28 35 47 25 94 49 9 0 37 0 75 1 49 2 24 3 73 7 45 11 18 14 91 22 36 37 27 74 54 10 0 30 0 60 1 21 1 81 3 02 6 03 9 05 12 06 18 09 30 15 60 3 Technical Data 10 11 49 Thermal Overload Protection Reyrolle 7SR5 Transformer Protection Device Device Manual 471 C53000 G7040 C015 1 Edition ...

Page 472: ...overloadgraph 1 en_US Figure 10 1 Thermal Overload Protection Curves Technical Data 10 11 49 Thermal Overload Protection 472 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

Page 473: ...1000 to 14400 s Δ 100 s Operate and Reset Level Attribute Value Iop Operate level Iset 5 or 1 Irated Reset level 95 Iop Repeatability 1 Transient overreach X R 100 5 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 2 Iset 35 ms 10 ms 5 Iset 25 ms 10 ms top Operate time following delay tbasic tdelay 1 or 10 ms Repeatability 1 o...

Page 474: ...supervision via circuit breaker auxiliary contacts For 3 pole CB tripping 1 input each for make contact and break contact i i NOTE The circuit breaker failure protection can also work without the circuit breaker auxiliary contacts stated Auxiliary contacts are required for circuit breaker failure protection in cases where the current flow is absent or too low for tripping for example with a transf...

Page 475: ... 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 20 ms top Stage 1 tdelay1 1 or 20 ms Stage 2 tdelay2 1 or 20 ms Repeatability 1 or 20 ms Overshoot 2 20 ms Disengaging time 30 ms Circuit Breaker Supervision Position supervision via circuit breaker auxiliary contacts For 3 pole CB tripping 1 input each for make contact and break contact i i NOTE The circui...

Page 476: ...ency Operating Range 0 9 f frated 1 1 According to specified tolerances 10 Hz f 0 9 frated 1 1 frated f 80 Hz Slightly expanded tolerances f 10 Hz f 80 Hz Active Tolerances Threshold values dropout thresholds 2 of the setting value or 1 of the rated current Times 1 of the setting value or 10 ms Technical Data 10 13 50BF Circuit Breaker Failure Protection 3 Pole 476 Reyrolle 7SR5 Transformer Protec...

Page 477: ...00 s Δ 100 s Operate and Reset Level Attribute Value Iop Operate level Iset 5 or 1 Irated Reset level 95 Iop Repeatability 1 Transient overreach X R 100 5 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 2 Iset 35 ms 10 ms 5 Iset 25 ms 10 ms top Operate time following delay tbasic tdelay 1 or 10 ms Repeatability 1 or 10 ms Ove...

Page 478: ...ate and Reset Level Attribute Value Iop Operate level Iset 5 or 1 Irated Reset level 95 Iop Repeatability 1 Transient overreach X R 100 5 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 2 Iset 40 ms 10 ms 5 Iset 30 ms 10 ms top Operate time following delay tbasic tdelay 1 or 10 ms Repeatability 1 or 10 ms Overshoot time 40 ms...

Page 479: ...I MI VI EI DTL Tm Time multiplier IEC ANSI 0 025 to 1 6 Δ 0 025 1 6 to 5 Δ 0 1 5 to 100 Δ 1 tdelay Delay setting 0 to 20 s Δ 0 01 s Minimum operate time 0 to 20 s Δ 0 01 s Follower DTL 0 to 20 s Δ 0 01 s treset Reset setting ANSI decaying IEC decaying DTL 0 to 60 s 51V multiplier 0 25 to 1 Δ 0 05 Operate and Reset Level Attribute Value Iop Operate level 105 Iset 4 or 1 Irated Reset level 95 Iop Re...

Page 480: ...02 ANSI VI A 19 61 B 0 491 P 2 ANSI EI A 28 2 B 0 1217 P 2 char DTL tdelay 1 or 20 ms Reset time ANSI decaying 5 or 30 ms For char ANSI MI R 4 85 ANSI VI R 21 6 ANSI EI R 29 1 IEC decaying 5 or 50 ms For char IEC NI R 9 7 IEC VI R 43 2 IEC EI R 58 2 IEC LTI R 80 treset treset 1 or 20 ms Repeatability 1 or 20 ms Overshoot time 40 ms Disengaging time 50 ms Technical Data 10 16 51 Time Delayed Overcu...

Page 481: ...o 5 Δ 0 1 5 to 100 Δ 1 tdelay Delay setting 0 to 20 s Δ 0 01 s Minimum operate time 0 to 20 s Δ 0 01 s Follower DTL 0 to 20 s Δ 0 01 s treset Reset setting ANSI decaying IEC decaying DTL 0 to 60 s Operate and Reset Level Attribute Value Iop Operate level 105 Iset 4 or 1 Irated Reset level 95 Iop Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 10 17 Technical Data 10 17 51G Time Del...

Page 482: ... ANSI VI A 19 61 B 0 491 P 2 ANSI EI A 28 2 B 0 1217 P 2 char DTL tdelay 1 or 20 ms Reset time ANSI decaying 5 or 30 ms For char ANSI MI R 4 85 ANSI VI R 21 6 ANSI EI R 29 1 IEC decaying 5 or 50 ms For char IEC NI R 9 7 IEC VI R 43 2 IEC EI R 58 2 IEC LTI R 80 treset treset 1 or 20 ms Repeatability 1 or 20 ms Overshoot time 40 ms Disengaging time 50 ms Technical Data 10 17 51G Time Delayed Earth F...

Page 483: ...o 5 Δ 0 1 5 to 100 Δ 1 tdelay Delay setting 0 to 20 s Δ 0 01 s Minimum operate time 0 to 20 s Δ 0 01 s Follower DTL 0 to 20 s Δ 0 01 s treset Reset setting ANSI decaying IEC decaying DTL 0 to 60 s Operate and Reset Level Attribute Value Iop Operate level 105 Iset 4 or 1 Irated Reset level 95 Iop Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 10 18 Technical Data 10 18 51N Time Del...

Page 484: ...ANSI VI A 19 61 B 0 491 P 2 ANSI EI A 28 2 B 0 1217 P 2 char DTL tdelay 1 or 20 ms Reset time ANSI decaying 5 or 30 ms For char ANSI MI R 4 85 ANSI VI R 21 6 ANSI EI R 29 1 IEC decaying 5 or 50 ms For char IEC NI R 9 7 IEC VI R 43 2 IEC EI R 58 2 IEC LTI R 80 treset treset 1 or 20 ms Repeatability 1 or 20 ms Overshoot time 40 ms Disengaging time 50 ms Technical Data 10 18 51N Time Delayed Earth Fa...

Page 485: ...25 to 1 6 tdelay Delay setting 0 to 20 s Δ 0 01 s treset Reset setting ANDI decaying 0 to 60 s Operate and Reset Level Attribute Value Iop Operate level 105 Iset 4 or 1 Irated Vop Operate level Reset level 95 Iop Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 10 19 Technical Data 10 19 51V Voltage Dependent Overcurrent Phase Reyrolle 7SR5 Transformer Protection Device Device Manua...

Page 486: ...t 2 or 0 5 V Reset level 95 Vop or 0 5 V Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 1 5 Vset 76 ms 20 ms 10 Vset 63 ms 20 ms top Operate time following delay tbasic tdelay 1 or 20 ms Repeatability 1 or 20 ms Overshoot time 80 ms Disengaging time 100 ms Inverse Time Element 59NIT Reference Parameter Value ...

Page 487: ...and Reset Time Attribute Value tbasic Element basic operate time 2 Vset 65 ms 20 ms top Operate time following delay char IDMTL 5 or 65 ms char DTL For DTL starter operate time tbasicFor DTL starter operate time tdelay 1 or 40 ms Reset time char IDMTL treset 5 or 65 ms char DTL treset 1 or 40 ms Repeatability 1 or 20 ms Overshoot time 70 ms Disengaging time 100 ms Technical Data 10 20 59N Neutral ...

Page 488: ...vel Attribute Value Vop Operate level Vset 2 or 0 5 V Reset level Vop hysteresis 2 or 0 5 V Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 1 1 Vset 73 ms 10 ms 2 Vset 63 ms 10 ms top Operate time following delay tbasic tdelay 1 or 10 ms Repeatability 1 or 10 ms Overshoot time Disengaging time 80 ms 10 21 Tech...

Page 489: ...e Iop CT failed current level Iset 5 or 1 Irated Reset level 90 Iop 5 or 1 Irated Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 30 ms 20 ms top Operate time following delay tbasic tdelay 1 or 20 ms Repeatability 1 or 20 ms 10 22 Technical Data 10 22 60CTS I CT Supervision Current Reference Reyrolle 7SR5 Tran...

Page 490: ...erate level Vset 5 Vrated Reset level 90 V2op 5 Vrated Iset Operate level I2 5 Irated Reset level 90 I2op 5 Irated I1 fault Operate level I1F 5 Irated Reset level 90 I1op 5 Irated I1 load Operate level I1 5 Irated Reset level 90 I1load 5 Irated Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 0 V to 2 Vset 32 m...

Page 491: ... Operating angle Forward θset 85 5 to θset 85 5 Reverse θset 180 85 5 to θset 180 85 5 Variation in charac teristic angle 10 C to 55 C 5 frated 5 5 Operate Threshold Attribute Value Minimum operating voltage 1 V 0 25 V Operate and Reset Time Attribute Value top Operate time Typically 32 ms 40 ms at characteristic angle 50 51 element operate time treset Reset time Typically 65 ms at characteristic ...

Page 492: ... Operating angle Forward θset 85 5 to θset 85 5 Reverse θset 180 85 5 to θset 180 85 5 Variation in charac teristic angle 10 C to 55 C 5 frated 5 5 Operate Threshold Attribute Value Minimum operating voltage 0 33 V 0 25 V Operate and Reset Time Attribute Value top Operate time Typically 32 ms 40 ms at characteristic angle 50 51 element operate time treset Reset time Typically 65 ms at characterist...

Page 493: ... Value θop Characteristic angle I with respect to V θset 5 Operating angle Forward θset 85 5 to θset 85 5 Reverse θset 180 85 5 to θset 180 85 5 Variation in charac teristic angle 10 C to 55 C 5 C frated 5 5 C Operate Threshold Attribute Value Minimum operating voltage 1 V 0 25 V Operate and Reset Time Attribute Value top Operate time Typically 32 ms 40 ms at characteristic angle 50 51 element ope...

Page 494: ...perating angle Forward θset 85 5 to θset 85 5 Reverse θset 180 85 5 to θset 180 85 5 Variation in charac teristic angle 10 C to 55 C 5 frated 5 5 Operate Threshold Attribute Value Minimum operating voltage 0 33 V Operate and Reset Time Attribute Value top Operate time Typically 32 ms 40 ms at characteristic angle 50 51 element operate time treset Reset time Typically 65 ms at characteristic angle ...

Page 495: ... hysteresis fop 10 mHz Under frequency 100 hysteresis fop 10 mHz Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time for ROCOF between 0 1 and 5 Hz s Over frequency Typically 110 ms Maximum 150 ms Under frequency Typically 110 ms Maximum 150 ms top Operate time following delay tbasic tdelay 1 or 10 ms Repeatabilit...

Page 496: ... Reset Level Attribute Value Iop Operate level Iset 5 Reset level 95 Iop Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value top Operate time 0 5 Iset ms ms Repeatability 1 or 10 ms Disengaging time ms 10 29 Technical Data 10 29 81HB2 Inrush Current Detection 496 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition...

Page 497: ...for operate time 0 to 2 Iset switched Operate and Reset Level Attribute Value Iop Operate level 100 Iset 5 or 0 01 Irated Reset level 95 Iop Repeatability 1 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 10 30 Technical Data 10 30 81HB5 Overfluxing Detection 5th Harmonic Reyrolle 7SR5 Transformer Protection Device Device Manual 497 C53000 G7040 C015 1 Edition 11 2019 ...

Page 498: ... Iop 5 or 0 1 Irated Repeatability 1 Transient overreach X R 100 5 Variation IEC 60255 1 10 C to 55 C 5 frated 5 5 Operate and Reset Time Attribute Value tbasic Element basic operate time 2 Iset 45 ms 10 ms 5 Iset 35 ms 10 ms top Operate time following delay tbasic tdelay 1 or 10 ms Repeatability 1 or 10 ms Overshoot time 40 ms Disengaging time 50 ms 10 31 Technical Data 10 31 87GH Restricted Eart...

Page 499: ...Δ 0 5 S2 Bias slope 2 1x to 2x Δ 0 05 I Applied current for operate time 0 to 3 Iop switched DTL Delay setting 0 to 1 s Δ 0 005 s Operate and Reset Level Attribute Value Iop Operate level IBIAS 0 to 1p u Iop Iinit IBIAS 1p u to S1L Iop S1 IBIAS 1 Iinit IBIAS S1L Iop S2 IBIAS S1L S1 S1L 1 Iinit Operate level 10 of Iop or 0 1pu Reset level 90 of Iop Repeatability 2 Transient overreach 5 Variation IE...

Page 500: ...Iset Differential current setting 1 to 30 Irated Δ 1 Irated I Applied current for operate time 0 to 1 5 Iop switched tdelay Delay setting 0 to 1 s Δ 0 005 s Operate and Reset Level Attribute Value Iop Operate level 10 of Iset or 0 1 Irated Reset level 90 of Iop Repeatability 2 Transient overreach 5 Variation IEC 60255 1 10 C to 55 C frated 5 Operate Time Attribute Value tbasic Element basic operat...

Page 501: ... A 1 Ordering Information 502 A 2 Current Transformer Connections 503 A 3 Voltage Transformer Connections 504 A Reyrolle 7SR5 Transformer Protection Device Device Manual 501 C53000 G7040 C015 1 Edition 11 2019 ...

Page 502: ... 3 4 x 19 size 12 Housing height 4U i i NOTE CT inputs 1 A 5 A 50 Hz 60 Hz VT inputs 40 V to 160 V 50 Hz 60 Hz PSU DC 24 V to DC 250 V AC 100 V to AC 230 V BI DC 24 V DC 110 V DC 220 V IEC 61850 ethernet editions 1 and 2 Modbus RTU IEC 60870 5 103 DNP 3 0 serial Ordering Information 7SR5 Spares and Accessories Product Description Order No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 7SR5 Spares and Acce...

Page 503: ..._CTConnections 1 en_US Figure A 1 Illustration of CT Connections for a 2 Winding Transformer Typical A 2 Appendix A 2 Current Transformer Connections Reyrolle 7SR5 Transformer Protection Device Device Manual 503 C53000 G7040 C015 1 Edition 11 2019 ...

Page 504: ...onnections 1 en_US Figure A 2 Illustration of VT Configuration Settings and VT Connections Typical A 3 Appendix A 3 Voltage Transformer Connections 504 Reyrolle 7SR5 Transformer Protection Device Device Manual C53000 G7040 C015 1 Edition 11 2019 ...

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