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Chapter 6 - 7SR157 Commissioning and Maintenance Guide

Chapter 6 - Page 13 of 14

©2016 Siemens Protection Devices Limited

Section 4:

Testing and Maintenance

The relays are maintenance free, with no user serviceable parts.

4.1

Periodic Tests

During the life of the relay, it should be checked for operation during the normal maintenance period for the site
on which the product is installed. It is recommended the following tests are carried out:

1. Visual inspection of the metering display.

2. Operation of output contacts.

3. Secondary injection of each element.

4.2

Maintenance

Relay failure will be indicated by the Protection Healthy LED being off or flashing. A message may also be
displayed on the LCD. In the event of failure, Siemens Protection Devices Ltd. (or one of its agents), should be
contacted.

The relay should be returned as a complete unit. No attempt should be made to disassemble the unit to isolate
and return only the damaged sub-assembly. It may however be convenient to fit the withdrawable relay to the
outer case from a spare relay, to avoid the disturbance of relay panel wiring, for return to Siemens Protection
Devices Ltd. The withdrawn relay should never be transported without the protection of the outer case.

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Summary of Contents for 7SR157 Argus

Page 1: ...Energy Management 7SR157 Argus Check and System Synchronising Relay Reyrolle Protection Devices ...

Page 2: ......

Page 3: ...tents Technical Manual Chapters 1 Description of Operation 2 Settings and Instruments 3 Performance Specification 4 Data Communications Definitions 5 Installation Guide 6 Commissioning and Maintenance 7 Applications Guide ...

Page 4: ...7SR157 Contents ...

Page 5: ...ited consent While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2022 Siemens Protection Devices Limited 7SR157 Check and System Synchronising Relay Description of...

Page 6: ...oltage Detector 22 3 5 Voltage Trim Magnitude and Phase 22 Section 4 Control Functions 23 4 1 25 Check Sync 23 4 1 1 Close Guard 24 4 2 25 System Split Detector 25 4 3 25 System Sync 26 4 4 25 Close On Zero 28 4 5 Synchronising Bypass 29 4 6 Quick Logic 30 Section 5 Supervision Functions 32 5 1 VT Supervision 60 VTF 32 5 2 Demand Metering 32 5 3 Close Circuit Supervision 74CCS 32 Section 6 Other F...

Page 7: ...re 2 8 LED Indication Label partial 15 Figure 2 9 Binary Input Logic 16 Figure 2 10 Binary Output Logic 17 Figure 2 11 Unexpected Restarts Lockout Text 18 Figure 2 12 Start up Events 19 Figure 3 1 VT Level Mode 2 State 20 Figure 3 2 VT Level Mode 3 State Live Output 21 Figure 3 3 VT Level Mode 3 State Dead Output 21 Figure 4 1 Voltage Check Function logic 23 Figure 4 2 Check Sync Function logic 24...

Page 8: ...Protection Devices Limited Symbols and Nomenclature The following notational and formatting conventions are used within the remainder of this document Setting Menu Location MAIN MENU SUB MENU Setting Elem name Setting Setting value value Alternatives 1st 2nd 3rd ...

Page 9: ...ronising Relay The Ordering Option Tables summarise the features available in each model General Safety Precautions External Resistors Where external resistors are fitted to relays these may present a danger of electric shock or burns if touched Front Cover The front cover provides additional securing of the relay element within the case The relay cover should be in place during normal operating c...

Page 10: ...eshold 19 V DC J PSU Rated 24 250V DC 100 230V AC Binary input threshold 19V DC Rated 24 250V DC M PSU Rated 24 250V DC 100 230V AC Binary input threshold 88V DC Rated 110 250V DC N Spare 10 A Communication Interface 11 Standard version included in all models USB front port RS485 rear port E4 case 1 1 2 Standard version plus additional rear electrical Ethernet RJ45 x2 E6 Case 1 7 7 Standard versio...

Page 11: ...Chapter 1 7SR157 Description of Operation 2022 Siemens Protection Devices Limited Chapter 1 Page 7 of 38 The relay has 2 VT inputs Figure 1 1 Protection Functions ...

Page 12: ...7SR157 Technical Manual Chapter 1 Page 8 of 38 2022 Siemens Protection Devices Limited Figure 1 2 Connections Diagram for 7SR157 Relay ...

Page 13: ...tly into standard panel racks The two case options have a width of 104mm E4 and 156 mm E6 both have a height of 177 mm 4U The required panel depth is 216 5mm with wiring clearance a total of 242 mm 290mm depth clearance should be allowed to accommodate the bending radius of fibre optic data communications cables if fitted The complete relay assembly is withdrawable from the front of the case Conta...

Page 14: ...ront Cover As standard the relay is supplied with a transparent front cover The front cover is used to secure the relay assembly in the case and it is recommended that the cover is always fitted when the relay is in service Figure 2 3 Relay with standard transparent cover If access is required to view the menus without removing the cover an alternative transparent cover with push buttons may be or...

Page 15: ...can also be used with 110 115V AC supplies For consistency and safety it is advised that AC connections to the auxiliary supply are made with the Live connection to the ve terminal and Neutral connection to ve The high voltage PSU and the Universal PSU will operate normally for reversed polarity DC auxiliary voltages In the event of the station battery voltage level falling below the relay minimum...

Page 16: ...relay which allow it to be withdrawn from the relay case The relay should not be carried by these handles Relay Information Above the LCD two labels are provided these provide the following information 1 Product Information Rating Label containing MLFB ordering code with hardware version suffix Product name Rated frequency Auxiliary supply rating Voltage rating Binary input supply rating Serial nu...

Page 17: ...M CONFIG menu allows the timeout to be adjusted from 1 to 60 minutes and Off backlight permanently on Pressing any key will re activate the display The LCD contrast can be adjusted using a flat blade screwdriver to turn the screw located below the contrast symbol Turning the screw clockwise increases the contrast anti clockwise reduces the contrast User defined indentifying text can be programmed ...

Page 18: ...n settings files can be loaded into the relay using Reydisp When the System Config Setting Dependencies is ENABLED only the functions that are enabled will appear in the menu structure PROT HEALTHY LED This green LED is steadily illuminated to indicate that DC voltage has been applied to the relay power supply and that the relay is operating correctly If the internal relay watchdog detects an inte...

Page 19: ...e delay has been applied the input may pick up due to induced ac voltage on the wiring connections e g cross site wiring The default pick up time of 20ms provides ac immunity Each input can be programmed independently Each input may be logically inverted to facilitate integration of the relay within the user scheme When inverted the relay indicates that the BI is energised when no voltage is appli...

Page 20: ... and will initiate the fault record storage actuate the Trip Alert screen where enabled and CB Fail protection when enabled Where a protection function is mapped to an output contact the output contact can be configured to trigger when the protection function picks up rather than when it operates Such output contacts are configured via the OUTPUT CONFIG BINARY OUTPUT CONFIG Pickup Outputs setting ...

Page 21: ...ut outputs which are internal binary stores By assigning the status of data items like starters alarms equations etc to a virtual input output the status of these items can be used to fulfil higher levels of functionality The status of various data items can be assigned to virtual inputs outputs using the INPUT CONFIG OUTPUT MATRIX menu Virtual input outputs can be used as inputs to various functi...

Page 22: ...events which are generated when the relay re starts The highlighted events show the cause of the re start The event which comes next shows the type of restart followed by the relay Warm Cold or Re Start As a further safeguard if the Relay performs a number of unexpected starts SYSTEM CONFIG Unexpected Restart Count in a given time SYSTEM CONFIG Unexpected Restart Period it can be configured using ...

Page 23: ...s turned on A changeover or normally closed N C contact can be mapped via the binary output matrix to provide an external protection defective signal When the protection relay is healthy then the N C contact is held open When the auxiliary DC supply is not applied to the relay or a problem is detected within the relay then this output contact closes to provide external indication If the relay is w...

Page 24: ... are below a set threshold level 25 Dead Bus or 25 Dead Line they can be considered to be dead If the voltages are within a range usually around the nominal voltage determined by 25 Live Bus or 25 Live Line settings then they are classed as live Independent voltage detectors are provided for both line and bus In this mode if a voltage is initially at or below the dead setting then it will be class...

Page 25: ...w the live threshold the live output is RESET but the Dead output does not SET until the voltage falls below the Dead threshold This is an indeterminate state where both Live and Dead outputs have the same value both are RESET This mode applies a 3 hysteresis setting to the drop off on both thresholds to minimise chattering of the element with frequency excursion Figure 3 2 VT Level Mode 3 State L...

Page 26: ...r Enabled Disabled selection is made by changing the 25 Voltage Diff in the VOLTAGE SETTING MENU The threshold setting 25 Volt Differential is set as a percentage difference between the Line and Bus voltages When the difference exceeds 25 Volt Diff setting 25 Diff Voltage output is set There is 3 fixed hysteresis on the element drop off to minimise chattering of the element with frequency excursio...

Page 27: ...ration of the time that the check synchronizing conditions are met Unlike System Sync Close and Close On Zero Close which are pulsed outputs The Check Sync inhibit command Check Sync Inhibit will inhibit a 25 Check Sync Close output from being set Check Sync Inhibit will not inhibit the 25 InSyncCS or 25 CS In Progress outputs from being set There are two modes of operation Auto and Manual The sel...

Page 28: ...o be given 25 Bus Undervolts If enabled the bus voltage has to be above the 25 Bus Undervolts setting value for an output to be given 25 Volt Differential If enabled the percentage difference between the line and bus voltages has to be less than the 25 Volt Differential setting value for an output to be given Figure 4 2 Check Sync Function logic 4 1 1 Close Guard If manual closes are required to b...

Page 29: ...hen interfacing with delayed autoreclose DAR schemes The delay can be adjusted by changing the 25 System Split Timer in the CHECK SYNC MENU The setting range is from 0 to 60000ms setting step is 10ms The condition by which a system split is detected is made by changing the 25 System Split Mode in the CHECK SYNC MENU There are two options for this condition Phase or Slip Phase The phase angle diffe...

Page 30: ...output is set when the System synchronizing conditions are met MANUAL 25 System Sync Close output is set when System synchronizing conditions are met and a manual close command is received via Start System Sync input LOCKOUT The System Split Lockout output is set when there is a 25 System Split event The System Split Lockout is reset by any of the following Reset Lockout Mode command via Binary in...

Page 31: ...Chapter 1 7SR157 Description of Operation 2022 Siemens Protection Devices Limited Chapter 1 Page 27 of 38 Figure 4 3 System Sync Function logic ...

Page 32: ... than the 25 Split Slip setting to avoid reversion to Check Synchronising conditions There are two modes of operation Automatic and Manual These modes require 25 Split Mode set to Close On Zero Modes are set via System Sync Enable Automatic Mode COZ Close output is set when Close On Zero conditions are met Manual Mode COZ Close output is set when Close On Zero conditions are met and a manual close...

Page 33: ...ad Line AND Live Bus LL AND DB Live Line AND Dead Bus DL AND DB Dead Line AND Dead Bus DL OR DB Dead Line OR Dead Bus DL XOR DB Dead Line Exclusive OR Dead Bus To bypass the synchronisation feature and issue a Bypass Close output specific line and bus conditions have to be met and the Sync Bypass status input has to be energised The Bypass Close output will stay on for the duration of the time tha...

Page 34: ... de energised Example Showing Use of Nomenclature E1 I1 V1 O2 L1 Equation 1 Binary Input 1 XOR Virtual I O 1 AND NOT Binary Output 2 OR LED 1 When the equation is satisfied 1 it is routed through a pick up timer En Pickup Delay a drop off timer En Dropoff Delay and a counter which instantaneously picks up and increments towards its target En Counter Target The counter will either maintain its coun...

Page 35: ...the output of the counter En 1 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 Protection functions can be used in Quick Logic by mapping them to a Virtual Input Output Refer to Chapter...

Page 36: ... calculated over fixed Window duration At the end of each window the internal statistics are reset and a new window is started When set to PEAK the maximum and minimum values since the feature was reset are recorded When set to ROLLING the maximum minimum and mean values demand statistics are calculated over a moving Window duration The internal statistics are updated when the window advances ever...

Page 37: ...C60870 5 103 Data communications operation is described in detail in Section 4 of this manual 6 2 IEC 61850 Communications The relay can optionally be provided with IEC61850 comms IEC61850 is provided with an added EN100 communication module The following EN100 output alarms are provided EN100 Life When the relay is powered up the EN100 Module initializes with the relay When initialization is succ...

Page 38: ...a suitably programmed binary input or via the data communications channel s The stored analogue and digital waveforms illustrate the system and relay conditions at the time of trigger An output is provided to indicate when a new record has been stored A waveform can also be stored from the fascia using the DATA STORAGE Trigger Waveform setting In total the relay provides up to 10 seconds of wavefo...

Page 39: ...an provide a visual warning at the top right position of the LCD that data storage is taking place The disk symbol shows that the copying of Events Waveform Records or Fault Records to non volatile disk storage is currently in progress This function is set by the SYSTEM CONFIG Disk Activity Symbol setting To avoid such data archiving causing a sluggish response of the HMI during Testing or Commiss...

Page 40: ...abled Disabled Disabled USB Disabled Enabled Disabled Binary Inputs Setting Option Setting Option Enabled Binary Outputs Enabled Enabled Disabled Reporting Spontaneous IEC Enabled Enabled Disabled DNP Enabled Enabled Disabled General Interrogation IEC Enabled Enabled Disabled DNP Enabled Enabled Disabled MODBUS Enabled Enabled Disabled Changing of Settings Rear Port Enabled Disabled Enabled Fascia...

Page 41: ...from Reydisp Evolution communications support software 6 6 2 Time Synchronisation Binary Input A binary input can be mapped Clock Sync from BI The seconds or minutes will be rounded up or down to the nearest value when the BI is energised This input is leading edge triggered 6 7 Settings Groups The relay provides four groups of settings Group number Gn 1 to 4 At any one time only one group of sett...

Page 42: ...ess and by entering the password NONE Again this must be entered twice to de activate the security system As soon as the user attempts to change a setting or initiate control the password is requested before any changes are allowed Once the password has been validated the user is logged on and any further changes can be made without re entering the password If no more changes are made within 1 hou...

Page 43: ...Devices Limited consent While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2016 Siemens Protection Devices Limited 7SR157 Check and System Synchronising Relay Set...

Page 44: ... connection 10 2 1 2 Rear RS485 connection 10 2 1 3 Optional Rear EN100 Ethernet Module COM3 11 2 1 4 Configuring Relay Data Communication 12 2 1 5 Connecting to the Relay for setting via Reydisp 13 2 1 6 Configuring the user texts using Reydisp Language Editor 14 List of Figures Figure 1 1 Menu System 3 Figure 1 2 Fascia Contrast symbol 3 Figure 1 3 Relay Identifier Screen 4 Figure 1 4 Menu Struc...

Page 45: ... will not be permitted if the relevant passwords have been set The menus can be viewed via the LCD by pressing the access keys as shown below Relay Identifier Setting Mode Instruments Fault Data Figure 1 1 Menu System Pressing CANCEL returns to the Identifier screen This document describes the text descriptions as they appear in the menu structure when the relay is using the default files The user...

Page 46: ...ay and edit the relay settings via the LCD They are also used to display and activate the control segment of the relay to display the relays instrumentation and Fault data and to reset the output relays and LEDs The five push buttons have the following functions READ DOWN READ UP These are used to navigate the menu structure ENTER The ENTER push button is used to initiate and accept setting change...

Page 47: ...NFIG CT VT CONFIG VOLTAGE SETTING MENU CHECK SYNC MENU CONTROL AND LOGIC VT SUPERVISION CLOSE CCT SUPERVISION INPUT MATRIX BINARY INPUT CONFIG GENERAL ALARMS OUTPUT MATRIX BINARY OUTPUT CONFIG LED CONFIG PICK UP CONFIG FAVOURITE METERS VOLTAGE METERS DEMAND METERS GENERAL ALARM METERS BINARY INPUT METERS COMMUNICATION METERS MISCELLANEOUS METERS QUICK LOGIC METERS 7SR157 __________________________...

Page 48: ...he setting value If the relay is setting password protected the user will be asked to enter the password If an incorrect password is entered editing will not be permitted All screens can be viewed if the password is not known While a setting is being edited flashing characters indicate the edit field Pressing the or buttons will scroll through the valid field values If these buttons are held on th...

Page 49: ...to this sub group Prim Voltage VLine 0 00V VBus 0 00V Displays the Primary RMS value of the Line and Bus voltage Sec Voltage VLine 0 00V VBus 0 00V Displays the Secondary RMS value of the Line and Bus voltage SYNC METERS to view This sub group includes all the meters that are associated with Synchronising TEST RESET allows access to this sub group Line Volts 0 0V Bus Volts 0 0V Line Freq 0 000Hz B...

Page 50: ...tus of Binary Inputs 1 to 6 The number of Binary Inputs may vary depending on model BINARY OUTPUT METERS to view This sub group includes all the meters that are associated with the Binary Outputs TEST RESET allows access to this sub group BO 1 8 Displays the status of Binary Outputs 1 to 8 The number of Binary Outputs may vary depending on model VIRTUAL METERS to view This sub group shows the stat...

Page 51: ...ccess to this sub group E 1 4 Displays which Equation s are currently in use E1 Equation EQN 0 TMR 0 0 0 CNT 0 1 0 EQN 0 or 1 This shows the current state of the Equation True or False TMR 0 0 indicates current status and target value for the timer CNT 0 0 indicates current status and target value for the counter E2 Equation EQN 0 TMR 0 0 0 CNT 0 1 0 EQN 0 or 1 This shows the current state of the ...

Page 52: ...as a free for download from our website Programming of graphical user logic requires the use of the Reydisp Manager software which is supplied with online instructions and help and is not documented here 2 1 Physical Connection The relay can be connected to Reydisp via any of the communication ports on the relay Suitable communication Interface cable and converters are required depending which por...

Page 53: ...e optic connectors Setting name Range Default Setting Notes LAN Protocol OFF IEC60870 5 103 IEC60870 5 103 If this setting is set to Off access to relay data using Reydisp Evolution and Reydisp Manager software via the Ethernet interface is not available Connections to the optional EN100 ethernet module are made on the rear side of the relay Connections are made to either RJ45 sockets electrical o...

Page 54: ...1 RS485 Baud Rate 75 110 150 300 600 1200 2400 4800 9600 19200 38400 19200 Sets the communications baud rate for COM1 RS485 COM1 RS485 Parity NONE ODD EVEN EVEN Selects whether parity information is used COM1 RS485 Mode Local Remote Local Or Remote Remote Selects whether the port is Local or Remote COM2 USB Protocol OFF DNP3 ASCII MODBUS RTU IEC60870 5 103 IEC60870 5 103 Selects the protocol to us...

Page 55: ...n up the sub menu File and select Connect The Connection Manager window will display all available communication ports With the preferred port highlighted select the Properties option and ensure the baud rate and parity match that selected in the relay settings Select Connect to initiate the relay PC connection Figure 2 4 PC Communications Port Selection The relay settings can now be configured us...

Page 56: ...your file The file will display all default Original text descriptions in one column and the Alternative text in the other column The descriptions in the Alternative list can be changed and will be used in the relays menu structures Once the file is complete a language file can be created and loaded into the relay using the send file to relay function The communication properties in the software a...

Page 57: ... in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2022 Siemens Protection Devices Limited 7SR157 Check and System Synchronising Relay Performance Specification Document Release History This document is...

Page 58: ...7SR158 Technical Manual Chapter 3 Page 2 of 18 2022 Siemens Protection Devices Limited ...

Page 59: ... 2 Control Logic Functions 14 2 1 Voltage Settings Live and Dead Status 14 2 1 1 Live and Dead Status 14 2 1 2 Line and Bus Undervolts Element 15 2 1 3 Volts Differential Element 15 2 2 Check Synchronising 16 2 2 1 Reference 16 2 2 2 25 Check Sync Angle Difference 16 2 2 3 25 Check Sync Slip Frequency 16 2 2 4 25 Split Angle Detector 16 2 2 5 25 Split Slip Frequency Detector 16 2 2 6 25 Check Sync...

Page 60: ... conditions unless specifically stated otherwise Parameter Value Auxiliary supply nominal Frequency nominal Ambient temperature 20 C 1 1 3 Dimensions Parameter Value E4 case width 103 5 mm E6 case width 155 5 mm Height 177 0 mm Depth behind panel including clearance for Wiring Fibre Optic Ethernet enclosure Depth below Ethernet variant for cables 241 5 mm 286 5 mm 261 5 mm 75 mm Projection from fr...

Page 61: ...missible or implied 1 2 1 1 Burden Battery loading can be estimated from the following maximum figures LV and HV PSU Attribute Watts VA Voltage 24V 30V 48V 110V 220V 115V AC rms 50 60Hz Quiescent Relay inc PROT HEALTHY LED 3 7 3 6 9 Backlight 1 3 3 2 LED Red or Green Each led 0 03 0 05 LED Yellow Each led 0 06 0 1 Binary Output Each output 0 35 0 7 Optional IEC 61850 Comms Interface 2 5 5 5 Batter...

Page 62: ...t described 1 in section 1 2 1 and 1 4 3 1 relays with HV or LV PSU modules may enter a safety protection mode where a power supply shutdown occurs This condition is designed to protect the power supply from damage as well as prevent internal relay faults from developing into dangerous situations Once the relay has entered this safety mode it may be necessary to reduce the auxiliary input voltage ...

Page 63: ...110 220 V DC 68 75 VDC 320 VDC AC operation Nominal Operating Range VBI 19 VDC 92 to 138 VRMS AC 1 2 4 1 DC Performance Attribute Value Maximum DC current for operation VBI 19 V 1 5mA VBI 88 V 1 5mA Reset Operate voltage ratio 90 Response time 9ms Response time when programmed to energise an output relay contact i e includes output relay operation 20ms The binary inputs have a low minimum operate ...

Page 64: ...ace IEC 61850 Option Attribute Value Physical layer Fibre optic Connectors Duplex LC 100BaseF in acc With IEEE802 3 Recommended fibre 62 5 125 m glass fibre with Duplex LC connector Transmission Speed 100 MBits s Optical Wavelength 1300 nm Bridgeable distance 2 km 1 3 2 4 Electrical Ethernet Data Communication Interface IEC 61850 Option Attribute Value Physical layer Electrical Connectors RJ45 100...

Page 65: ...als and earth or between any two independent circuits 5 0 kV 1 2 50 s 0 5j 1 4 1 4 Dielectric Insulation IEC 60255 27 IEC 60255 5 withdrawn Type Level Between any terminal and earth 2 5 kV AC RMS for 1 min Between independent circuits Across normally open contacts 1 0 kV AC RMS for 1 min 1 4 1 5 Installation Category IEC 60255 27 Type Level Installation Category Overvoltage Category Class III 1 4 ...

Page 66: ...IEC 60255 26 IEC 60255 25 withdrawn 1 4 2 1 Radiated Emissions Enclosure Type Limits at 10 m Quasi peak 30 to 230 MHz 40 dB V m 230 to 1000 MHz 47 dB V m 1 4 2 2 Radiated Emissions Conducted IEC 60255 26 CISPR 22 Type Limits Quasi peak Average 0 15 to 0 5 MHz 79 dB V 66 dB V 0 5 to 30 MHz 73 dB V 60 dB V ...

Page 67: ...0 60Hz claimed Normal Operation1 40 RV 10 12 cycles 50 60Hz Normal Operation1 70 RV 25 30 cycles 50 60Hz Normal Operation1 Voltage Interruptions DC auxiliary supply 0 RV 5s Relay Reset2 Voltage Interruptions AC auxiliary supply 0 RV 250 300 cycles 50 60Hz Relay Reset2 Alternating Component In DC Ripple DC auxiliary supply IEC 60255 26 IEC 61000 4 17 15 max and min RV Continuous Normal operation1 G...

Page 68: ... Sweep 10 V m 1 4GHz to 2 7GHz Sweep 10 V m 80 160 380 450 900 1850 2150 MHz Spot 10 V m 1 4 3 5 Fast Transients IEC 60255 26 Type Level 5 50 ns 5 kHz repetitive Analog inputs Aux Power I O 4kV RS485 communications port 2kV 1 4 3 6 Surge Immunity IEC 60255 26 IEC 61000 4 5 IEC 60255 22 5 withdrawn Type Level Variation Analog Inputs Line to Earth 4 0 kV 10 Case Aux Power I O Line to Earth 2 0 kV An...

Page 69: ...EC 60255 27 IEC 60255 21 1 Class I Type Level Variation Vibration response 0 5 gn 5 Vibration endurance 1 0 gn 1 4 4 2 Shock and Bump IEC 60255 27 IEC 60255 21 2 Class I Type Level Variation Shock response 5 gn 11 ms 5 Shock withstand 15 gn 11 ms Bump test 10 gn 16 ms 1 4 4 3 Seismic IEC 60255 27 IEC 60255 21 3 Class I Type Level Variation Seismic response X plane 3 5mm displacement below crossove...

Page 70: ... Nom Voltage 40 40 1 160 V System Frequency 50 60 Hz 25 Live Line 0 1 150 25 Dead Line 0 1 150 25 Live Line 0 1 150 25 Dead Line 0 1 150 2 1 1 2 Operate and Reset Level Attribute Value Vlive act Live operate level 100 Vlive 1 Vn Live reset level Vdead act 1 Vn Live Hysteresis level Vlive act 3 Vn Vdead act Dead operate level 100 Vdead 1 Vn Dead reset level Vlive act 1 Vn Dead Hysteresis level Vdea...

Page 71: ... 2 2 Operate and Reset Level Attribute Value Vline Operate level 100 Vsl 1 Vn Reset level Vline 3 Vbus Operate level 100 Vsb 1 Vn Reset level Vbus 3 Repeatability 1 Variation 10 C to 55 C 5 fnom 5 1 2 1 3 Volts Differential Element 2 1 3 1 Reference Parameter Value Vnom Line Nom Voltage 40 40 1 160 V Vnom Bus Nom Voltage 40 40 1 160 V fn System Frequency 50 60 Hz Vdiff 25 Volt Differential 0 1 100...

Page 72: ...op Operate angle diff 1º Reset angle op 1º Repeatability 1º 2 2 3 25 Check Sync Slip Frequency Attribute Value fop Operate frequency fslip 10mHz Reset frequency fop 10mHz Repeatability 10mHz Note minimum synchronising time following restoration of voltage from a dead condition is 320ms 2 2 4 25 Split Angle Detector Attribute Value op Operate angle split 1 2 2 5 25 Split Slip Frequency Detector Att...

Page 73: ... 60s 2 3 2 25 System Sync Angle Difference Attribute Value op Operate angle diff 1º Reset angle op 1º Repeatability 1º 2 3 3 25 System Sync Slip Frequency Attribute Value fop Operate frequency fslip 10mHz Reset frequency fop 10mHz Repeatability 10mHz Note minimum synchronising time following restoration of voltage from a dead condition is 320ms 2 3 4 25 Close on Zero Slip Frequency Parameter Value...

Page 74: ...ute Value tbasic Element basic operate time 25ms top Operate time following delay tbasic td 1 or 20ms Repeatability 1 or 20ms Variation 10 C to 55 C 5 fnom 5 5 3 2 60 VTF VT Failure 3 2 1 Reference Parameter Value td Delay setting 0 0 1 100 s 3 2 2 Operate and Reset Time Attribute Value tbasic Element basic operate time 63 ms 10ms top Operate time following delay tbasic td 1 or 20ms Repeatability ...

Page 75: ...all any model or article be reproduced from this document unless Siemens Protection Devices Limited consent While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 201...

Page 76: ...7SR157 Technical Manual Chapter 4 Page 2 of 58 2016 Siemens Protection Devices Limited ...

Page 77: ...Register Data Types 20 4 2 1 FLOAT_IEEE_754 20 4 2 2 FP_32BITS_3DP 21 4 2 3 UINT32 21 4 2 4 UINT16 21 4 2 5 EVENT 22 4 2 6 EVENTCOUNT 23 4 2 7 TIME_METER 23 4 2 8 STR32 STR64 23 4 2 9 BITSTRING 23 4 3 Point List 25 4 3 1 Coils Read Write Binary values 25 4 3 2 Inputs Read Only Binary values 25 4 3 3 Input Registers Read Only Registers 27 4 3 4 Holding Registers Read Write Registers 28 5 DNP3 Defin...

Page 78: ...onnecting a Modem to the Relay s 51 8 3 Setting the Remote Modem 51 8 4 Connecting to the Remote Modem 51 9 Configuration 53 10 Glossary 55 Appendix 1 57 List of Figures Fig 2 1 Communication to Front USB Port 8 Fig 2 2 Communication to Multiple Devices using RS485 Standard Port 10 Fig A1 Operating Mode Table 57 ...

Page 79: ...tions protocols DNP3 IEC 60870 5 103 IEC 61850 and MODBUS RTU Note not all protocols are available on all devices Reydisp Evolution or Reydisp Manager Software is available for computers running Microsoft Windows to connect to devices to provide operational information post fault analysis setting interrogation and editing facilities etc Configuration software can be downloaded from our website htt...

Page 80: ...7SR157 Technical Manual Chapter 4 Page 6 of 58 2016 Siemens Protection Devices Limited ...

Page 81: ...rotocol is also available through this port the main use of this protocol is to allow the Relay firmware to be updated via the front connection MODBUS RTU or the optional DNP3 protocols are also available COM3 LAN When the Ethernet module is fitted in addition to IEC61850 a LAN connection is provided to allow the Reydisp software to connect to the Relay via the network This port only supports the ...

Page 82: ...out the need to first change any settings Access to the communication settings for the USB port is only available from the relay front fascia via the key pad setting menu COMMUNICATIONS MENU Setting Name Range Options Default Setting Notes COM2 USB Protocol OFF IEC60870 5 103 MODBUS RTU ASCII DNP3 IEC60870 5 103 Reydisp software requires IEC60870 5 103 COM2 USB Station Address 0 254 for IEC60870 5...

Page 83: ...nnected in reverse communication to all devices will be disturbed but no damage will occur If problems are experienced during commissioning the connections should be tried in reverse The maximum number of relays that can be connected to the bus is 64 The RS485 data comms link will be broken for that particular relay element if it is withdrawn from the case but the chain of communication to the oth...

Page 84: ... RS485 Screened twisted pair Rear terminals Ext Wire loop terminating resistance added where permanent drive from master station available A RS485 GND B Term 14 16 18 20 A RS485 GND B Term 14 16 18 20 A RS485 GND B Term 14 16 18 20 RS 485 Twisted pair Cable To Control System Bus Termination Polarity 5V B A GND Fig 2 2 Communication to Multiple Devices using RS485 Standard Port ...

Page 85: ...ating as a slave responding to the master s commands The implementation provides event information time synchronising commands and measurands and also supports the transfer of disturbance records This protocol can be set to use any or all of the relays hardware interfaces USB Fibre Optic RS232 RS485 and Ethernet where fitted and is the standard protocol used by the USB port The relay can communica...

Page 86: ...ction table lists possible causes of transmission for these frames The following abbreviations are used Abbreviation Description SE spontaneous event T test mode GI general interrogation Loc local operation Rem remote operation Ack command acknowledge Nak Negative command acknowledge Note Events listing a GI cause of transmission can be raised and cleared other events are raised only ...

Page 87: ...DU column of the Information Number and Function table lists the possible ASDUs returned for a point ASDU Description 1 Time tagged message monitor direction 2 Time tagged message relative time monitor direction 3 1 Measurands I 4 Time tagged measurands with relative time 5 Identification message 6 Time synchronisation 7 General Interrogation Initialization 9 Measurands II 20 General command ...

Page 88: ...Out Of Service Mode 20 Ack Nak 1 SE GI 60 6 Local Mode 20 Ack Nak 1 SE GI 60 7 Local Remote 20 Ack Nak 60 12 Control Received 1 SE 60 13 Command Received 1 SE 60 128 Cold Start 1 SE 60 129 Warm Start 1 SE 60 130 Re Start 1 SE 60 131 Expected Restart 1 SE GI 60 132 Unexpected Restart 1 SE GI 60 135 Trigger Storage 1 SE 60 136 Clear Waveform Records 1 SE 60 137 Clear Fault Records 1 SE 60 138 Clear ...

Page 89: ...y Output 5 20 Ack Nak 1 SE GI 80 6 Binary Output 6 20 Ack Nak 1 SE GI 80 7 Binary Output 7 20 Ack Nak 1 SE GI 80 8 Binary Output 8 20 Ack Nak 90 1 LED 1 1 SE GI 90 2 LED 2 1 SE GI 90 3 LED 3 1 SE GI 90 4 LED 4 1 SE GI 90 5 LED 5 1 SE GI 90 6 LED 6 1 SE GI 90 7 LED 7 1 SE GI 90 8 LED 8 1 SE GI 90 9 LED 9 1 SE GI 91 1 LED PU 1 1 SE GI 91 2 LED PU 2 1 SE GI 91 3 LED PU 3 1 SE GI 91 4 LED PU 4 1 SE GI...

Page 90: ...Sync 1 SE GI 183 199 25 System Sync 1 SE GI 183 200 25 Close On Zero 1 SE GI 183 201 25 System Split 1 SE GI 183 202 25 Live Line 1 SE GI 183 203 25 Live Bus 1 SE GI 183 204 25 Line U V 1 SE GI 183 205 25 Bus U V 1 SE GI 183 206 25 Voltage Dif 1 SE GI 183 207 25 CS Slip Freq 1 SE GI 183 208 25 SS Slip Freq 1 SE GI 183 209 25 COZ Slip Freq 1 SE GI 183 210 25 In Sync 1 SE GI 183 211 25 CS In Progres...

Page 91: ...k Nak 255 0 General Interrogation GI Initiation 7 Init GI 255 0 General Interrogation GI End 8 End of GI 255 0 Time Synchronisation 6 Time Synch 3 4 2 Measurands The following Measurand EVT and INF numbers apply to this device FUN INF Description ASDU COT 185 240 Measurand VLine Bus FLine Bus CSPhase Diff VMeasured Diff FSlip VLine 1 2x Window 0 VBus 1 2x Window 0 FLine 1 2x Window 0 FBus 1 2x Win...

Page 92: ...7SR157 Technical Manual Chapter 4 Page 18 of 58 2016 Siemens Protection Devices Limited ...

Page 93: ...SB Fibre Optic RS232 and RS485 where fitted The relay can communicate simultaneously on all ports regardless of protocol used The Station Address of the port being used must be set to a suitable address within the range 1 247 to enable communication This can be set by the Communications Menu COM n xxxxx Station Address setting Communication via MODBUS over Ethernet requires external devices Please...

Page 94: ...stance xyz The mantissa represents the binary fraction of a number therefore the MSB represents 2 1 or 1 2 1 and its LSB 2 23 or 1 2 23 The following table shows a detailed layout of the mantissa 1 2 1 1 2 2 1 2 3 1 2 4 1 2 21 1 2 22 1 2 23 0 5 0 25 0 125 0 0625 4 768e 7 2 384e 7 1 192e 7 As an example 1 000 000 would be represented as follows hex 49742400 4 9 7 4 2 4 0 0 0 1 0 0 1 0 0 1 0 1 1 1 0...

Page 95: ...eception these two registers should be interpreted in the correct order as a 32 bit integer 4 2 3 UINT32 The UINT32 is a signed 32 bit integer As it is an integer negative numbers are sent as 2 s complement UINT32 MODBUS In this MODBUS implementation the 32 bit value is stored in 2 16 bit registers in Big Endian format As an example if we take the hex representation of 123456 in 2 s complement we ...

Page 96: ...an be checked periodically to determine how many events are stored The format of the event record is defined by the zero byte It signifies the type of record which is used to decode the event information The zero byte can be one of the following Format The format of the event record is defined by the zero byte It signifies the type of record which is used to decode the event information The zero b...

Page 97: ...s as follows The following table describes the fields in the time Key Description ms L Time Stamp Milliseconds low byte ms H Time Stamp Milliseconds high byte Mi Time Stamp Minutes MSB invalid time not set 23 hours Ho Time Stamp Hours MSB Summer time flag Da Time Stamp Days Mo Time Stamp Months Ye L Time Stamp Years low byte Ye H Time Stamp Years high byte Not Used The following table shows the fi...

Page 98: ...n a 16 bit register in Big Endian format As an example assume bits 1 3 9 and 12 are set The binary representation of this would be 00001001000001012 giving a hex representation of 0905h Assume this is stored in the register 30001 it would look as follows Address Value 30001 0905 On reception this register should be interpreted as a 16 bit integer ...

Page 99: ...put 8 00101 Setting G1 selected 00102 Setting G2 selected 00103 Setting G3 selected 00104 Setting G4 selected 00155 Remote Mode 00156 Out Of Service Mode 00157 Local Mode 00158 Local Remote 00200 User SP Command 1 00201 User SP Command 2 00202 User SP Command 3 00203 User SP Command 4 00204 User SP Command 5 00205 User SP Command 6 00206 User SP Command 7 00207 User SP Command 8 00208 User DP Comm...

Page 100: ... 10294 General Alarm 5 10295 General Alarm 6 10296 General Alarm 7 10302 Quick Logic E1 10303 Quick Logic E2 10304 Quick Logic E3 10305 Quick Logic E4 10352 25 System Split 10353 25 Live Line 10354 25 Live Bus 10355 25 Line U V 10356 25 Bus U V 10357 25 Voltage Dif 10358 25 CS Slip Freq 10359 25 SS Slip Freq 10360 25 COZ Slip Freq 10361 25 In Sync 10362 25 CS In Progress 10363 25 SS In Progress 10...

Page 101: ... SP Command 3 10903 User SP Command 4 10904 User SP Command 5 10905 User SP Command 6 10906 User SP Command 7 10907 User SP Command 8 10908 User DP Command 1 10909 User DP Command 2 10910 User DP Command 3 10911 User DP Command 4 10912 User DP Command 5 10913 User DP Command 6 10914 User DP Command 7 10915 User DP Command 8 4 3 3 Input Registers Read Only Registers Address Description Format Mult ...

Page 102: ...0 V Bus Secondary V 30478 V Line Max FP_32BITS_3DP 1 000000 V Line Max Demand V 30480 V Bus Max FP_32BITS_3DP 1 000000 V Bus Max Demand V 4 3 4 Holding Registers Read Write Registers Address Description Format Mult Description 40001 Time TIME_METER 0 000000 Time 40060 Frequency FP_32BITS_3DP 1 000000 Frequency Hz 40167 Fault Records UINT16 1 000000 Fault Records 40168 Event Records UINT16 1 000000...

Page 103: ...d the complete list is described in the attached table For static non change event object requests request qualifier codes 07 and 08 limited quantity and 17 and 28 index are supported Static object requests sent with qualifiers 07 or 08 will be responded with qualifiers 00 or 01 Output Event Object 11 is supported Maximum Data Link Frame Size octets Transmitted 256 Received 256 Maximum Application...

Page 104: ...e On Never Always Sometimes Configurable Pulse Off Never Always Sometimes Configurable Latch On Never Always Sometimes Configurable Latch Off Never Always Sometimes Configurable Queue Never Always Sometimes Configurable Clear Queue Never Always Sometimes Configurable Attach explanation if Sometimes or Configurable was checked for any operation Reports Binary Input Change Events when no specific va...

Page 105: ...E DOCUMENT Also see the DNP 3 0 Implementation Table in Section 5 2 beginning on page 32 File Transfer Support Yes No Append File Mode Yes No Custom Status Code Strings Yes No Permissions Field Yes No File Events Assigned to Class Yes No File Events Send Immediately Yes No Multiple Blocks in a Fragment Yes No Max Number of Files Open 0 ...

Page 106: ...9 response 00 01 start stop 17 28 index see note 2 2 0 Binary Input Change Any Variation 1 read 06 no range or all 07 08 limited qty 2 1 Binary Input Change without Time 1 read 06 no range or all 07 08 limited qty 129 response 130 unsol resp 17 28 index 2 2 default see note 1 Binary Input Change with Time 1 read 06 no range or all 07 08 limited qty 129 response 130 unsol resp 17 28 index 2 3 Binar...

Page 107: ... 12 2 Pattern Control Block 3 select 4 operate 5 direct op 6 dir op noack 7 limited quantity 129 response echo of request 12 3 Pattern Mask 3 select 4 operate 5 direct op 6 dir op noack 00 01 start stop 129 response echo of request 13 0 Binary Output Command Event Any Variation 1 read 06 no range or all 07 08 limited qty 13 1 default see note 1 Binary Output Command Event without Time 1 read 06 no...

Page 108: ... 6 16 Bit Frozen Counter without Time Of Freeze 1 read 00 01 start stop 06 no range or all 07 08 limited qty 17 27 28 index 129 response 00 01 start stop 17 28 index see note 2 21 7 32 Bit Frozen Delta Counter with Time Of Freeze 21 8 16 Bit Frozen Delta Counter with Time Of Freeze 21 9 default see note 1 32 Bit Frozen Counter without Flag 1 read 00 01 start stop 06 no range or all 07 08 limited q...

Page 109: ...nalog Input Any Variation 1 read 22 assign class 00 01 start stop 06 no range or all 07 08 limited qty 17 27 28 index 30 1 32 Bit Analog Input 1 read 00 01 start stop 06 no range or all 07 08 limited qty 17 27 28 index 129 response 00 01 start stop 17 28 index see note 2 30 2 default see note 1 16 Bit Analog Input 1 read 00 01 start stop 06 no range or all 07 08 limited qty 17 27 28 index 129 resp...

Page 110: ...point Analog Change Event with Time 1 read 06 no range or all 07 08 limited qty 129 response 130 unsol resp 17 28 index 32 8 long floating point Analog Change Event with Time 1 read 06 no range or all 07 08 limited qty 129 response 130 unsol resp 17 28 index 33 0 Frozen Analog Event Any Variation 33 1 32 Bit Frozen Analog Event without Time 33 2 16 Bit Frozen Analog Event without Time 33 3 32 Bit ...

Page 111: ...e or all 1 read 06 no range or all 07 08 limited qty 60 3 Class 2 Data 20 enbl unsol 21 dab unsol 22 assign class 06 no range or all 1 read 06 no range or all 07 08 limited qty 60 4 Class 3 Data 20 enbl unsol 21 dab unsol 22 assign class 06 no range or all 1 read 00 01 start stop 129 response 00 01 start stop 80 1 Internal Indications 2 write see note 3 00 start stop index 7 No Object function cod...

Page 112: ... buffer size is set to allow 100 events Binary inputs are by default returned in a class zero interrogation Note not all points listed here apply to all builds of devices Binary Input Points Static Steady State Object Number 1 Packed Format Change Event Object Number 1 w o Time Static Variation reported when variation 0 requested 1 Binary Input w o status or 2 Binary Input with status Change Event...

Page 113: ...238 Quick Logic E2 0 2 2 2 239 Quick Logic E3 0 2 2 2 240 Quick Logic E4 0 2 2 2 387 25 System Split 0 2 2 2 388 25 Live Line 0 2 2 2 389 25 Live Bus 0 2 2 2 390 25 Line U V 0 2 2 2 391 25 Bus U V 0 2 2 2 392 25 Voltage Dif 0 2 2 2 393 25 CS Slip Freq 0 2 2 2 394 25 SS Slip Freq 0 2 2 2 395 25 COZ Slip Freq 0 2 2 2 396 25 In Sync 0 2 2 2 397 25 CS In Progress 0 2 2 2 398 25 SS In Progress 0 2 2 2 ...

Page 114: ...ED PU 5 0 2 2 2 706 LED PU 6 0 2 2 2 707 LED PU 7 0 2 2 2 708 LED PU 8 0 2 2 2 709 LED PU 9 0 2 2 2 801 Binary Output 1 0 2 2 2 802 Binary Output 2 0 2 2 2 803 Binary Output 3 0 2 2 2 804 Binary Output 4 0 2 2 2 805 Binary Output 5 0 2 2 2 806 Binary Output 6 0 2 2 2 807 Binary Output 7 0 2 2 2 808 Binary Output 8 0 2 2 2 871 Cold Start 0 2 2 2 872 Warm Start 0 2 2 2 873 Re Start 0 2 2 2 874 Power...

Page 115: ...nts are included here for completeness they are not often polled by DNP 3 0 Masters Binary Output Status points are not recommended to be included in class 0 polls As an alternative it is recommended that actual status values of Control Relay Output Block points be looped around and mapped as Binary Inputs The actual status value as opposed to the commanded status value is the value of the actuate...

Page 116: ...ct 13 Assigned Class 1 2 3 or none Default Variation Command Event Object 13 CROB Supported Operations Default CROB Operations 1 RL 1 0 2 2 0 1 Pulse On Latch On Close Pulse On 2 RL 2 0 2 2 0 1 Pulse On Latch On Close Pulse On 3 RL 3 0 2 2 0 1 Pulse On Latch On Close Pulse On 4 RL 4 0 2 2 0 1 Pulse On Latch On Close Pulse On 5 RL 5 0 2 2 0 1 Pulse On Latch On Close Pulse On 6 RL 6 0 2 2 0 1 Pulse ...

Page 117: ...bject 13 Assigned Class 1 2 3 or none Default Variation Command Event Object 13 CROB Supported Operations Default CROB Operations 89 Service mode 0 2 2 0 1 Pulse On Latch On Close Pulse On 90 Local mode 0 2 2 0 1 Pulse On Latch On Close Pulse On 91 Local Remote 0 2 2 0 1 Pulse On Latch On Close Pulse On 99 User SP Command 1 0 2 2 0 1 Pulse On Latch On Close Pulse On 100 User SP Command 2 0 2 2 0 1...

Page 118: ...lse On Pulse Off Latch On Latch Off Close Trip Pulse On Pulse Off 110 User DP Command 4 0 2 2 0 1 Pulse On Pulse Off Latch On Latch Off Close Trip Pulse On Pulse Off 111 User DP Command 5 0 2 2 0 1 Pulse On Pulse Off Latch On Latch Off Close Trip Pulse On Pulse Off 112 User DP Command 6 0 2 2 0 1 Pulse On Pulse Off Latch On Latch Off Close Trip Pulse On Pulse Off 113 User DP Command 7 0 2 2 0 1 Pu...

Page 119: ...ozen Counter Event with Flag or 2 16 Bit Frozen Counter Event with Flag or 5 32 Bit Frozen Counter Event with Flag and Time or 6 16 Bit Frozen Counter Event with Flag and Time Counter Frozen Counter Point Index Description Default Change Event Assigned Class 1 2 3 or none Default Variation Static Object 20 Default Variation Event Object 22 Deadband Is Resettable IsFreezable Default Change Event As...

Page 120: ...gle Precision floating point Point Index Description Default Change Event Assigned Class 1 2 3 or none Default Variation Static Object 30 Default Variation Event Object 32 Default Multiplier Default Deadband 0 Frequency 0 3 2 4 100 000 1 000 95 Active Setting Group 0 3 2 4 1 000 1 000 162 Phase Diff 0 3 2 4 100 000 1 000 163 Slip Freq 0 3 2 4 100 000 1 000 164 Voltage Diff 0 3 2 4 100 000 1 000 33...

Page 121: ...Chapter 4 7SR157 Data Communications Definitions 2016 Siemens Protection Devices Limited Chapter 4 Page 47 of 58 6 Not Applicable This section intentionally left blank ...

Page 122: ...7SR157 Technical Manual Chapter 4 Page 48 of 58 2016 Siemens Protection Devices Limited ...

Page 123: ... IEC61850 Protocol Support 7 1 Introduction The relay can optionally be provided with IEC61850 comms For further details refer to the following publications Model Implementation Conformance Statement MICS Protocol Implementation Conformance Statement PICS Protocol Implementation Extra Information for Testing PIXIT ...

Page 124: ...7SR157 Technical Manual Chapter 4 Page 50 of 58 2016 Siemens Protection Devices Limited ...

Page 125: ...e configured as auto answer This will allow it to initiate communications with the relays Next the user should set the data configuration at the local port i e baud rate and parity so that communication will be at the same rate and format as that set on the relay and the error correction is disabled Auto answer usually requires two parameters to be set The auto answer setting should be switched on...

Page 126: ...7SR157 Technical Manual Chapter 4 Page 52 of 58 2016 Siemens Protection Devices Limited ...

Page 127: ...d loaded from disc to work offline The protocols will be stored in a Reyrolle Protection Device Comms file RPDC which will be stored locally so that the editor can be used when the relay is not connected DNP3 The tool will allow Data Points to be enabled or disabled Changing the point numbers for the Binary Inputs Double Bit Inputs Binary Outputs Counters and Analogue Inputs Changing their assigne...

Page 128: ...an check if the relay contains user configured communication files via a meter in the relay menus Pressing the Enter and down arrow buttons on the fascia then scrolling down the number of files stored in the relay is displayed The file name can also be viewed by pressing the Cancel and Test Reset buttons together when in the relay Instruments menu The user must ensure when naming the file they use...

Page 129: ...tions simultaneously Half Duplex Asynchronous Communications Communications in two directions but only one at a time Hayes AT Modem command set developed by Hayes Microcomputer products Inc LAN Local Area Network A computer network covering a small geographic area LC Fibre optic connector type designed by Lucent Technologies Inc Line Idle Determines when the device is not communicating if the idle...

Page 130: ...ices Limited Start Bit Bit logical 0 sent to signify the start of a byte during data transmission Stop Bit Bit logical 1 sent to signify the end USB Universal Serial Bus standard for the transfer of data WAN Wide Area Network A computer network covering a large geographic area ...

Page 131: ...in each mode Operation Mode Function Local Remote Service Control Com1 when Com1 Mode Local when Com1 Mode Remote Com2 USB when Com2 Mode Local when Com2 Mode Remote Fascia Control Mode Binary Input n when BI n Mode Local when BI n Mode Remote Binary Outputs Reporting Spontaneous IEC DNP3 General Interrogation IEC DNP3 MODBUS Change Settings Com1 when Com1 Mode Local when Com1 Mode Remote Com2 USB...

Page 132: ...s Limited Siemens Protection Devices Ltd SPDL P O Box 8 Hebburn Tyne and Wear NE31 1TZ United Kingdom For enquiries please contact our Customer Support Centre Tel 49 180 524 8437 24hrs Fax 49 180 524 2471 E Mail support ic siemens com www siemens com reyrolle Template Revision 16 ...

Page 133: ...nt While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2018 Siemens Protection Devices Limited 7SR157 Check and System Synchronising Relay Installation Guide Docum...

Page 134: ...1 5 1 Voltage Transformer Configurations 12 Section 6 Data Communications Connections 13 6 1 RS485 Connection 13 6 2 Additional Optional Ethernet Connection for IEC 61850 14 6 3 Ethernet Network Redundancy IEC 61850 15 6 3 1 RSTP Rapid Spanning Tree Protocol 15 6 3 2 PRP Parallel Redundancy Protocol 16 6 3 3 HSR High Availability Seamless Redundancy Protocol 17 List of Figures Figure 3 1 Dimension...

Page 135: ...n tampered with then the guarantee will be invalidated Siemens Protection Devices Limited reserves the right to charge for any subsequent repairs 1 3 Recommended Mounting Position The relay uses a liquid crystal display LCD for programming and operation The LCD has a vertical viewing angle of 30 and is back lit However the best viewing position is at eye level and this is particularly important gi...

Page 136: ...t disposal of such waste By disposing of these products correctly you will help to save valuable resources and prevent any potential negative effects on human health and the environment NOTE Our products and batteries must not be disposed of as household waste For disposing batteries it is necessary to observe the local national international directives Disposal of Mobile Storage Devices e g USB S...

Page 137: ... Conditions 2 1 External Resistors Where external resistors are connected to the relay circuitry these may present a danger of electric shock or burns if touched 2 2 Front Cover The front cover provides additional securing of the relay element within the case The relay cover should be in place during normal operating conditions ...

Page 138: ... WEIGHT Relays are supplied in the modular size E4 case The following drawing gives panel cut out and mounting details E4 PANEL CUT OUT 168 78 98 5 159 10 SIDE VIEW 31 216 5 25mm MIN CLEARANCE FOR TERMINAL WIRING FRONT VIEW 103 5 177 151 5 11 Case Earth connection Typical when fitted Figure 3 1 Dimensions and Panel Drilling for Size E4 Epsilon Case ...

Page 139: ...NCE TYPICALLY 4 5 DIAMETER AND RELAYS MOUNTED USING M4 MACHINE SCREWS NUTS AND LOCKWASHERS SUPPLIED IN PANEL FIXING KIT PANEL CUT OUT 168 130 150 159 10 Diameter 3 6 4 holes see note FRONT VIEW 155 5 177 SIDE VIEW 31 216 5 151 5 11 Case Earth connection Typical when fitted MINIMUM CLEARANCES 25mm FOR TERMINAL WIRING 75mm FOR ETHERNET COMMS MODULE Figure 3 2 Dimensions and Panel Drilling for Size E...

Page 140: ...imps Ring tongued crimps with 90 bend are recommended 3 2 2 Panel Fixings Typical mounting screw kit per Relay comprises 4 off M4x10mm Screws 4 off M4 Nuts 4 off M4 Lock Washer Typical rear terminal block fixing kit 1kit per terminal block fitted to relay comprises 28 off M4 8mm Screws 28 off M4 Lock Washer ...

Page 141: ...r Figure 4 2 E6 Case viewed from rear Notes 1 Recommended terminations are pre insulated and must be crimped using approved tooling 2 RS485 Block B Terminals 14 16 18 20 connection to this communication facility is by screened twisted pair cable On site when wiring other facilities ensure that these terminals are not obscured by other wiring runs Cable should be RS485 compliant ...

Page 142: ...ns Protection Devices Limited Figure 4 3 E4 Case Terminal Arrangement viewed from rear To withdraw relay check rear ethernet positions are clear and remove retaining screw Ethernet Comms Input Connectors Figure 4 4 E6 Case Terminal Arrangement viewed from rear ...

Page 143: ... relay case assembly Contacts close when relay chassis withdrawn from case NOTES BI Binary Input BO Binary Output BO 1 GND BI 1 ve RS485 GND ve Term ve ve ve ve 22 24 28 2 4 BI 2 ve ve 6 8 BI 3 ve ve 10 12 14 16 18 20 BI 4 ve 3 BI 5 ve 5 BI 6 ve ve 7 1 BO 2 6 5 4 1 2 3 BO 3 8 7 BO 7 11 13 BO 8 15 9 BO 4 10 9 BO 5 12 11 A BO 6 17 19 21 23 B Line Volts Bus Volts Optional Figure 5 1 7SR157 Connection...

Page 144: ... 5 1 Voltage Transformer Configurations Relay Voltage Configuration Description Connection Vbn line Vbn bus 25 Check Sync 60 VTF B17 B19 B21 B23 A B C N n a b c A B C N n a b c V Line V Bus Vab line Vab bus 25 Check Sync 60 VTF B17 B19 B21 B23 A B C N n a b c A B C N n a b c V Line V Bus ...

Page 145: ...d to identify the polarity of any equipment to be connected typically measured at each terminal in turn to ground Connection of the device to a termination network at the end of the bus will also be to suit the quiescent state as shown below The polarity marking is often found to be reversed or marked as on other equipment so care is required If the devices are connected in reverse communication t...

Page 146: ...ended minimum for the fibre used typically 50 mm is acceptable 62 5 125 µm glass fibre with Duplex LC connector recommended for all distances To Control System Switch Ch n Ch 2 Ch 1 62 5 125 µm fibre optic with Duplex LC connectors or RJ45 electrical connectors Ch 2 Ch 1 Ch 1 Ch 3 Ch 2 Ch 1 Input Ch 2 Figure 6 2 1 Ethernet connection for IEC 61850 star connection Switch Ch n Ch 2 Ch 1 Ch 2 Ch 1 Ch...

Page 147: ...hernet port please see the Reydisp Manager Userguide Depending on the EN100 module type and Firmware version the following protocol options are available Interface Type EN100 Firmware Line Mode Switch Mode RSTP OSM PRP HSR Electrical RJ45 EN100 4 08 or earlier Electrical RJ45 EN100 4 21and later Optical EN100 4 08 or earlier Optical EN100 4 21and later Table 1 EN100 Redundancy availability 6 3 1 R...

Page 148: ...d is based on double transmission of message frames over ring topology networks in both directions In the case of an error the message frame will be transmitted without any delay No reconfiguration time is necessary for the network as is the case for RSTP PRP need to be enabled on the device within Reydisp Manager See Reydisp Manager userguide Figure 6 3 2 PRP Ethernet Network Configuration ...

Page 149: ... is based on double transmission of message frames over ring topology networks in both directions In the case of an error the message frame will be transmitted without any delay No reconfiguration time is necessary for the network HSR needs to be enabled on the device within Reydisp Manager See Reydisp Manager user guide Network rings with up to 50 devices is possible Figure 6 3 3 HSR Ethernet Net...

Page 150: ...7SR157 Technical Manual Chapter 5 Page 18 of 18 2018 Siemens Protection Devices Limited ...

Page 151: ... article be reproduced from this document unless Siemens Protection Devices Limited consent While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2016 Siemens Protec...

Page 152: ... 5 1 3 3 Primary Injection Tests 5 1 3 4 Putting into Service 5 1 4 AC Analogue Energising Quantities 5 1 5 Binary Inputs 5 1 6 Binary Outputs 6 1 7 Relay Case Shorting Contacts 6 Section 2 Control Functions 7 2 1 Phase Angle Tests 7 2 2 Slip Frequency Tests 7 2 3 Timer Tests 8 Repeat the test for a range of Check and System Sync Timer settings 9 2 4 Voltage Level Detector Tests 9 2 5 Undervoltage...

Page 153: ...d danger to personnel and equipment When cabling and wiring is complete a comprehensive check of all terminations for tightness and compliance with the approved diagrams must be carried out This can then be followed by the insulation resistance tests which if satisfactory allows the wiring to be energised by either the appropriate supply or test supplies When primary injection tests are completed ...

Page 154: ...y scheme tests are carried out The relay features multiple settings groups of which only one is active at a time In applications where more than one settings group is to be used it may be necessary to test the relay in more than one configuration Note one group may be used as a Test group to hold test only settings that can be used for regular maintenance testing This eliminates the need for the T...

Page 155: ... menus Each input should be checked for correct connection and measurement accuracy by single phase secondary injection at nominal levels Ensure that the correct instrument displays the applied signal within limits of the Performance Specification Applied Sec Volts Vrms Tolerance V Line Secondary Primary Line VT Ratio V Bus Secondary Primary Bus VT Ratio Note Instrument tolerance is 1 Vn 0 1 x Vn ...

Page 156: ...his function will energise each output for its set minimum operate time This time is specified in the Output Config Binary Output Config sub menu for each output relay and may be set to too short a time to register with a continuity tester It should therefore be increased to a time suitable for the actual test equipment used An alternative method of energising an Binary Output relay permanently so...

Page 157: ...he relevant sections of Chapter 3 Performance Specification Positive angle Negative angle 25 Check Sync Angle Pick Up Drop Off Pick Up Drop Off 2 2 Slip Frequency Tests The Slip Frequency detector algorithm which is used for both Check and System Sync elements is more difficult to test as it requires variable frequency sources A portable relay test set with fixed and variable frequency voltage sou...

Page 158: ...lay in the logic of the relay and delays to the input of the automated secondary injection test set A way to determine the total length of these delays is to set the 25 Check Sync Timer to 0 00s and record the delay time This delay time should then be subtracted from the time recorded when the 25 Check Sync Timer is greater than 0 00s 2 Using Reydisp Evolution software the event records will give ...

Page 159: ...8 53 725 22 01 2000 80 Raised Binary Output 3 90 Raised LED 1 183 Raised 25 In Sync 183 Raised 25 Check Sync 60 Raised Trigger Storage 25 Check Sync Timer Setting sec Recorded Delay Time sec Recorded Time sec Actual Time Recorded Time Recorded Delay Time sec 25 System Sync Timer Setting sec Repeat the test for a range of Check and System Sync Timer settings 2 4 Voltage Level Detector Tests To chec...

Page 160: ...ription of this mode 2 5 Undervoltage Detector Tests To check the pick up and drop off levels for both 25 Bus Undervolts and 25 Line Undervolts blocking elements Apply nominal volts to both the Line and Bus input terminals of the relay Examine the Volt Blocking instrument found in the SYNC METERS instrument and check for operation of the element as shown below Individually ramp up and down the Lin...

Page 161: ...Chapter 6 7SR157 Commissioning and Maintenance Guide Chapter 6 Page 11 of 14 2016 Siemens Protection Devices Limited ...

Page 162: ...ality is used the logic equations may interfere with testing of other control functions in the relay The function of the Quick 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 ...

Page 163: ...cts 3 Secondary injection of each element 4 2 Maintenance Relay failure will be indicated by the Protection Healthy LED being off or flashing A message may also be displayed on the LCD In the event of failure Siemens Protection Devices Ltd or one of its agents should be contacted The relay should be returned as a complete unit No attempt should be made to disassemble the unit to isolate and return...

Page 164: ...ntion This is normal operation default instruments are enabled Remove all instruments from the default list and only add those that are required See Section 2 Settings and Instruments of this manual Cannot communicate with the relay Check that all of the communications settings match those used by Reydisp Evolution Check that all cables modems and fibre optic cables work correctly Ensure that IEC6...

Page 165: ... article be reproduced from this document unless Siemens Protection Devices Limited consent While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2016 Siemens Protec...

Page 166: ...Synchronising Settings 7 2 8 Example Setting Calculations for 25 Check Sync Timer 8 Section 3 Supervision Functions 9 3 1 Close Circuit Supervision 74CCS 9 3 1 1 Close Circuit Supervision Connections 9 Section 4 Common Functions 10 4 1 Binary Inputs 10 4 1 1 The Effects of Capacitance Current 10 4 1 2 AC Rejection 10 4 1 3 Use of Binary Inputs in control and tripping circuits 12 4 2 Binary Outputs...

Page 167: ...lays setting limits the relay will issue an output which can be used to close the circuit breaker directly or in conjunction with an autoreclose scheme Both the check and system synchronise functions have independent settings and blocking features The relay also includes split system detection with a variable time delay which can be used for blocking purposes within delayed autoreclose DAR schemes...

Page 168: ...its then 2 Set 25 Check Sync Enable to MANUAL or AUTO Set 25 System Split Detector to Enabled Set 25 System Split Mode to Phase Set 25 Split Angle to a suitable angle e g 170 Set System Sync Enable to LOCKOUT Set 25 Close On Zero to Disabled This will ensure that if the power system splits the relay will not go into system synchronising mode but revert to lockout mode The relay will at this point ...

Page 169: ... nominal voltage range which can be set between 40 0 160 0V is available for both the Line and Bus 2 3 2 Undervoltage Detector Settings The relay undervoltage blocking elements if enabled can be used to block a close operation if either the line incoming or bus running voltages fall below a certain percentage of rated voltage Typically the undervoltage elements are set somewhere between 80 and 90 ...

Page 170: ... will vary between being in phase and anti phase The 7SR157 relays can be set to measure slip frequency in two ways One way is to measure the two system frequencies directly and calculate the difference Another way is to measure the phase difference between the two systems and check that the phase angle change in a defined time period is less than a predetermined value If F1 and F2 represent the f...

Page 171: ...ieve the same ends Note in check synchronising mode the valid phase difference window for closing is actually twice the 25 Check Sync Angle setting value because the valid Check Sync close can be given when the phase angle is either decreasing or increasing It should also be noted that the Check Sync Close output will stay on for a minimum of 100ms and for the whole duration of the time that the c...

Page 172: ...quency difference or slip between them The change in phase angle θ for a system with 1Hz slip is 360 in 1 second Thus Change in phase angle 360 Slip θ sec The distance the phasor can travel during the breaker close time can therefore be given by where tCB is the breaker close time in seconds Using the equation given in Section 2 5 for check synchronising 180 θ Td 1 Slip substituting this into CB t...

Page 173: ... this can provide a remote alarm In addition an LED on the relay can be programmed to operate A user text label can be used to define the operated LED e g Close CCT Fail The relevant Binary Input is mapped to 74CCS n in the INPUT CONFIG INPUT MATRIX menu To avoid giving spurious alarm messages while the circuit breaker is operating the input is given a 0 4s Drop off Delay which is found in the SUP...

Page 174: ...y The BI will be less likely to mal operate if they 1 Have both the positive and negative auxiliary supplies switched double pole switched 2 Do not have extensive external wiring associated with them e g if the wiring is confined to the relay room 4 1 2 AC Rejection The default pick up time delay of 20ms provides immunity to ac current for dc applications e g induced from cross site wiring BI can ...

Page 175: ...n Devices Limited Chapter 7 Page 11 of 14 2 Set Quick Logic equation E1 to operate from BI 1 and apply required delays 3 Set equation E1 to operate virtual I O V1 in the Output Matrix 4 Set virtual I O V1 to operate the System Sync inhibit in the Input Matrix ...

Page 176: ...s available an 88V BI will give an added measure of immunity compared to the 19V BI due to its higher minimum pickup voltage As a guide to suitable degrees of enhanced immunity we have adopted the parameters laid down in U K standard EATS 48 4 This standard identifies two levels of immunity Category ESI 1 may be adopted for connections which do not include significant wiring runs or cabling outsid...

Page 177: ...7 5V Operative IOP 50mA 1K2 330 BI Pickup DTL 15ms 10µF 60V Capacitance discharge BI Pickup DTL 15ms 10µF 150V Capacitance discharge BI 19V BI 19V BI 19V BI 19V BI 19V Resistor power ratings 30V DC Nominal 3W 48V DC Nominal 3W 110V DC Nominal 10W ESI 1 110V DC Nominal 20W ESI 2 Resistors must be wired with crimped connections as they may run hot 110V DC Nominal 87 5 137 5V Operative IOP 25mA 2K7 1...

Page 178: ...o expressly acknowledge the change in status Self reset LEDs are used to display features which routinely change state such as Circuit Breaker open or close The status of Hand reset LEDs is retained in capacitor backed memory in the event of supply loss Each LED can be assigned as red yellow or green in colour There are two methods for doing this 1 In the LED Matrix tab to assign the LED as a red ...

Page 179: ...Siemens Protection Devices 1 ...

Page 180: ...ar NE31 1TZ United Kingdom Phone 44 0 191 401 7901 Fax 44 0 191 401 5575 E mail marketing spdl gb siemens com For enquires please contact our Customer Support Center Phone 49 180 524 8437 24hrs Fax 49 180 524 2471 E mail support energy siemens com EMEA T10052 00 76GB September 2022 www siemens com energy ...

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