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Checks With Secondary Values

283

7SS52 V4 Manual
C53000-G1176-C182-3

7.4.3

Differential Current Monitoring

7.4.3.1

busbar-selective Protection

To check the busbar-selective protection, the busbar-selective protection must be set
more sensitive than the check zone so that the supervision of the differential current
of the check zone picks up later.

Example

You want to test the supervision for the busbar-selective protection with the parame-
ters for the differential current threshold

Id> SUPERV BZ

(

) =

0.2

I/I

no

and

the delay time (

/

CU

) =

2.0

s.

For the check zone the parameter for the differential current threshold

Id> SUPERV CZ

(

CU

)is assumed to be set to

0,8

I/I

no

.

Test setup

Arrange the test setup as in Chapter 7.4.2, page 279.

Test steps

To make the differential current supervision block the protection, set it with the pa-
rameter

DIFF SUPERV

(

CU

) to

On

.

Set the parameters for the differential current threshold

Id> SUPERV BZ

(

) and the delay time

T-Idiff SUPERV

) as desired.

Set the parameters for the overcurrent thresholds

(

XX13/CU

) for the con-

cerned bays to

0

.

If the parameter

DIF SUP mode BZ

(

) is set to

block

, carry out the fol-

lowing 3 steps:

−

Connect the bays 1 and 2 to different bus zones.

−

Increase the current I

1

in feeder 1 slowly until the annunciation of the differential

current supervision signals that it has picked up. The current must correspond to
the pickup threshold set in parameter

Id> SUPERV BZ

(

). Now the bus

is blocked. Even if I

1

is further increased, there is no tripping.

−

Apply to feeder 2 a current 4 times as high as the rated current I

N

. The protection

system now switches off the current in feeder 2.

The last 2 test steps guarantee that the supervision of the differential current is
busbar-selective.

If the parameter

DIF SUP mode BZ

(

CU

) is set to

alarm only

without

protectionblocking, carry out the following 3 steps:

−

Connect the bays 1 and 2 to the same bus zone.

−

Increase the current I

1

in feeder 1 slowly until the differential current signals that

it has picked up. The current must corespond to the set pickup threshold in pa-
rameter

Id> SUPERV BZ

(

CU

).

−

Apply to feeder 2 a current 4 times as high as the rated current I

N

. By doing this

the protection system now switches off the current in the feeders 1 and 2.

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. ElectricalPartManuals

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Summary of Contents for SIPROTEC 7SS522 V4.6

Page 1: ...3 Manual Preface Table of Contents Introduction 1 Design and Connection System 2 Getting Started 3 Configuration 4 Functions 5 Control During Operation 6 Installation and Commissioning 7 Maintenance and Repair 8 Technical Data 9 Appendix A References Index w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 2: ...teful for any improvements that you care to suggest Subject to technical modifications Document Release 4 62 00 Edition 09 2007 Copyright Copyright Siemens AG 2007 All Rights Reserved Dissemination or reproduction of this document or evaluation and commu nication of its contents is not authorized except where expressly permitted Violations are liable for damages All rights reserved particularly fo...

Page 3: ... per sonnel in electrical plants and power stations Scope of validity of this manual This manual is valid for the complete SIPROTEC 7SS52 V4 distributed busbar and breaker failure protection system firmware version 4 6 The system comprises the central unit 7SS522 V4 6 and the bay units 7SS523 V3 3 and 7SS525 V3 3 The com plete system will be referred to in the manual as 7SS52 V4 Indication of Conf...

Page 4: ...valid for damage on or in the device itself and consequential damage thereof Note indicates information about the device or respective part of the instruction manual which is essential to highlight Warning Hazardous voltages are present in this electrical equipment during operation Non observance of the safety rules can result in severe personal injury or property dam age Only qualified personnel ...

Page 5: ...ice or on the screen of a personal computer with DIGSI are marked in bold letters of a monospace type style Parameter options i e possible settings of text parameters which may appear word for word in the display of the device or on the screen of a personal computer with DIGSI are written in italic style additionally This applies also for options in menus Annunciations i e designators for informat...

Page 6: ...tive if both inputs are active or inactive at the same time Dynamic input signals edge triggered above with positive below with negative edge Formation of one analogue output signal from a number of analogue input signals Limit value stage with parameter address and param eter name Timer pickup delay T adjustable with parameter address and parameter name Timer dropout delay T non adjustable Edge c...

Page 7: ... Cubicle Mounting 21 2 3 Connection Method 22 2 3 1 Location of Device Connections 22 2 3 2 Device Connections 25 2 3 2 1 Screw Type Terminals 26 2 3 2 2 Double Leaf Spring Crimp Contacts 26 2 3 2 3 D SUB Female Connectors 27 2 3 2 4 Fiber Optic Cable Connections 27 2 3 2 5 EN100 module Ethernet IEC 61850 28 3 Getting Started 29 3 1 Unpacking and Repacking 30 3 2 Checking the Rated Data 30 3 3 Mat...

Page 8: ...ys 54 4 3 5 Inserting Dynamic Elements 56 4 3 6 Connecting Dynamic Elements to the Busbars 58 4 3 6 1 Inserting Lines 58 4 3 6 2 Inserting a Connection 59 4 3 7 Normalized Current 60 4 3 8 Inserting Static Text 61 4 3 9 Creating and Inserting Typicals 62 4 3 10 Saving the Substation Chart 62 4 4 Configuration Notes 63 4 5 Assigning Bay Units 71 4 6 Marshalling 73 4 6 1 Marshalling Information Item...

Page 9: ...er Busbar Operation 107 5 1 4 Setting Notes 108 5 1 5 Settings for the Central Unit 111 5 2 Check Zone 112 5 2 1 Mode of operation 112 5 2 2 Setting Notes 113 5 2 3 Settings for the Central Unit 113 5 3 Circuit Breaker Failure Protection 114 5 3 1 Characteristics for the Circuit Breaker Failure Protection 114 5 3 2 Setting Notes 115 5 3 3 Settings for the Central Unit 116 5 3 4 List of Information...

Page 10: ... 5 1 5 Battery Monitoring 143 5 5 1 6 Supervision in Maintenance Mode 143 5 5 1 7 Cyclic Test 144 5 5 1 8 Supervision of External Current Transformer Circuits 144 5 5 1 9 Isolator Status Supervision 146 5 5 1 10 Supervisory of Circuit Breaker 151 5 5 1 11 Overview of the Supervisory Functions 152 5 5 2 Setting Notes 154 5 5 3 Settings for the Central Unit 157 5 5 4 List of Information from the Cen...

Page 11: ... 177 5 10 2 Setting Notes 177 5 11 Integrated Operation of the Bay Unit 178 5 11 1 Functional Description 178 5 11 2 Setting Notes 178 5 11 3 Settings of the Bay Unit 179 5 12 PC Port of the Bay Unit 180 5 12 1 Functional Description 180 5 12 2 Setting Notes 180 5 12 3 Settings of the Bay Unit 181 5 13 Fault Recording in the Bay Unit Local Fault Recording 182 5 13 1 Functional Description 182 5 13...

Page 12: ...erview 210 6 2 Reading Out Information 212 6 2 1 Annunciations 212 6 2 1 1 Operational Annunciations 214 6 2 1 2 Fault events 216 6 2 1 3 Alarm List 217 6 2 1 4 General Interrogation 218 6 2 1 5 Spontaneous Annunciation 218 6 2 1 6 Statistics 219 6 2 2 Reading Out Measured Values 219 6 2 3 Reading Out Fault Data 221 6 3 Controlling Device Functions 225 6 3 1 Creating an Oscillographic Record 225 6...

Page 13: ...3 1 Central Unit 268 7 3 3 2 Bay Unit 271 7 3 4 Testing the System Port 273 7 3 5 Control of the Isolator Replica 275 7 3 6 Switching the Test Mode and the Transmission Block On and OFF 277 7 4 Checks With Secondary Values 278 7 4 1 General 278 7 4 2 Trip Characteristic of the Busbar Protection 279 7 4 2 1 busbar selective Protection 279 7 4 2 2 Check Zone 281 7 4 3 Differential Current Monitoring...

Page 14: ...2 9 2 General Device Data 313 9 2 1 Analog Inputs and Outputs 313 9 2 2 Rated Auxiliary Voltage 313 9 2 3 Binary Inputs 314 9 2 4 Alarm Contacts 314 9 2 5 Trip Contacts 315 9 2 6 Light Emitting Diodes 315 9 2 7 Operation Displays 315 9 2 8 Serial Ports 316 9 2 9 Busbar Protection 317 9 2 10 Circuit Breaker Failure Protection 318 9 2 11 Overcurrent Protection in the Bay Unit 319 9 2 12 Auxiliary Fu...

Page 15: ...F Module 358 A 5 4 Settings of the AFE Module 359 A 5 5 Settings of the EFE Module 360 A 5 6 Settings of the EFE_10 Module 362 A 6 Protocol Dependent Functions 364 A 7 Parameter Listing Central Unit 365 A 8 Parameter Listing Bay Unit 367 A 9 List of information Central Unit 373 A 10 List of Information Bay Unit 383 A 11 Group Alarms Central Unit 389 A 12 Group Alarms Bay Unit 392 A 13 Measured Val...

Page 16: ...Table of Contents xvi 7SS52 V4 Manual C53000 G1176 C182 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 17: ...e SIPROTEC 7SS52 V4 distributed busbar and breaker fail ure protection An overview of the device is presented in its application characteris tics and scope of functions 1 1 Overall Operation 2 1 2 Applications 4 1 3 Features 5 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 18: ...LEDs LC display DIGSI communication software allow event indication In addition operational meas ured values are displayed For the marshalling of isolator positions command relays alarm relays and allocata ble binary inputs the DIGSI communication software is used Optionally the bay units can be equipped with a backup protection function definite time inverse time including breaker failure protect...

Page 19: ...neral view of the configuration of the protection system SBK Protection processing SC Serial coupling DPR Dual port RAM PS Power supply I O CU Input output central unit ZPS Central processor protection SBK Bus master w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 20: ...izing isolators and 16 bus couplers with one bay unit or 8 bus couplers with two bay units By virtue of the universal isolator replica the SIPROTEC 7SS52 V4 distributed busbar and breaker failure protection can be matched with different busbar configurations in the design phase Compensation of different current transformer ratios is achieved by parameter setting Interposing current transformers ar...

Page 21: ... units from the central unit using DIGSI or local menu guided operation via integrated keypad and display panel Battery buffered storage of fault events as well as instantaneous values for fault re cording Complete galvanic and disturbance free isolation between the internal processing circuits of central unit and bay units and the measuring and auxiliary supply circuits of the station by virtue o...

Page 22: ... transfer busbars Stabilization against spurious tripping in case of external faults and CT saturation Zone selective and phase selective blocking of the busbar protection by the differ ential current monitor Selective blocking of the bus section in case of Isolator faults Bay faults bay unit FO cable Measured value error Response of the zero crossing supervision Characteristics for check zone and...

Page 23: ... with following unbalancing 2 stage CBF Single pole or three pole start by external breaker failure protection and tripping via the isolator replica Direct operation of the circuit breaker by the bay unit Direct tripping of busbar sections via binary inputs of the central unit Figure 1 2 Pick up characteristics of the busbar and breaker failure protection unbalancing Figure 1 3 Earth fault charact...

Page 24: ...o the circuit breaker of the initiating feeder after a set time delay In case this second TRIP command is also unsuccessful tripping as per mode I query is effected Unbalancing After initiation by a TRIP command from the feeder protection the 7SS52 V4 system checks the feeder current If the measured current stays above the set threshold after a set time has elapsed the polarity of the current in t...

Page 25: ...failure protection function The isolator replica comprises the following functions Management of up to 48 bay units 12 bus zones and 12 bus coupler sections The protection system is suitable for configurations up to quintuple busbars Combi bus operation is possible Up to 16 couplers can be configured with one bay unit and up to 8 couplers with 2 bay units These can be bus couplers or and sectional...

Page 26: ... to a PC and evaluated by the DIGSI communication software The fault record data buffer SIPROTEC 7SS52 V4 is protected against data loss in case of power failures Relays LEds and binary inputs All inputs and outputs are freely marshallable Each LED or relay can be allocated to more than one event likewise events can be marshalled more than one LED or relay of the central unit 12 binary inputs are ...

Page 27: ...software through the serial PC port In addition the data are visualized per phase per bus zone and for the checkzone in the display of the central unit The display of the bay unit shows only the data for the check zone Monitoring of the zone selective and phase selective differential currents with zone selective blocking or alarm output Monitoring of the zone selective and phase selective differen...

Page 28: ...ty is achieved by the continuous monitoring of Isolator statuses Trip circuits Measured current circuits Measured value transformations Supply voltages Program memories Program processing Discharge degree of battery central unit and bay unit For diagnosis purposes in the event of device failures a battery buffered dedicated data memory is available in the central unit Clock control Central unit Ba...

Page 29: ...it and the bay units that constitute the SIPROTEC 7SS52 V4 distributed busbar and breaker failure protection It explains what housing versions are possible and what connection methods are used 2 0 General 14 2 1 Central Unit 15 2 2 Bay Unit 18 2 3 Connection Method 22 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 30: ...stallation In door cables may be used for centralized configuration of the bay units Power supply The modules in the bay unit and central unit are powered by powerful power supply units For the range required for your specific input voltage please refer to the selec tion and ordering data in the Table A 1 page 336 Bonding power fail ure Short dips or failures of the supply voltage up to 50 ms whic...

Page 31: ...e central unit 1 LEDs for the indication of operating states 2 LCD for textual display of process and device information 3 Navigation keys for moving through the operating tree 4 MENU key for calling up the main menu 5 9 pole female sub D connector for connecting a PC running DIGSI 6 ENTER for confirmation of changes or for acknowledging information displayed in the LCD ESC key to move up one leve...

Page 32: ...and the DIGSI software It also offers a control center interface a service port and 5 binary inputs An integrated electrical EN100 module for the communication via IEC 61850 is optionally available Input output module EAZ The I O module EAZ comprises 16 alarm relays 8 Function keys F1 Alarm list F2 Operational events F3 Measured values F4 Last fault 9 freely parameterizable LEDs for display of pro...

Page 33: ...s rear side The receiver and trans mitter connection points per bay unit are consecutively numbered on the central unit s rear plate Terminal blocks On the rear side of the central unit terminal blocks are provided for the external elec trical connection of the power supply module SV the I O module EAZ and the com munication module D CPU For each electrical connection point there is one screw type...

Page 34: ...e information 3 Navigation keys for moving through the operating tree 4 MENU key no function 5 ENTER key for confirmation of inputs for entering the next level or for switching between ordering code MLFB and operational measured values ESC key to move up one level 6 Function keys F1 Direct access to the operating tree for changing the mode F2 Starts the circuit breaker test F3 Direct access to the...

Page 35: ...als The heavy duty current terminals automatically short circuit the current transformer when the module is withdrawn Plug in modules The plug in modules are identified according to their position in a coordinate system The connections inside a module are numbered consecutively from left to right viewed from the rear see example in Figure 2 8 page 24 8 LED key for testing and resetting the LEDs an...

Page 36: ...relays EFE_10 module The EFE_10 contains the binary inputs and receives indications e g from isolators and circuit breakers Heavy duty current terminals The heavy duty current terminals automatically short circuit the current transformer when the module is withdrawn Plug in modules The plug in modules are identified according to their position in a coordinate system The connections inside a module...

Page 37: ...the housing can be in Figure 9 4 page 331 2 2 3 2 Panel Flush Mounting or Cubicle Mounting For panel flush mounting or cubicle mounting the bay units are delivered in casings type 7XP20 With the bay unit 7SS523 the front plate is hinged and can be pulled out with a plastic tab and swung to the left for easy servicing With the bay unit 7SS525 the front plate can be removed All signals including the...

Page 38: ...on System 22 7SS52 V4 Manual C53000 G1176 C182 3 2 3 Connection Method 2 3 1 Location of Device Connections Central unit Figure 2 6 Device connections on central unit w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 39: ...on Method 23 7SS52 V4 Manual C53000 G1176 C182 3 Bay unit Panel surface mounting Figure 2 7 Device connections on bay unit 7SS523 for panel surface mounting w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 40: ...7SS52 V4 Manual C53000 G1176 C182 3 7SS523 bay unit Panel flush mount ing or cubicle mounting Figure 2 8 Device connections on bay unit for panel flush mounting or cubicle mounting w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 41: ... for FO connection glass fiber 62 5 125 µm FO duplex outdoor cable or FO duplex indoor cable Bay unit Panel surface mounting Screw type terminals for stranded wires with max 4 mm or for solid wires with max 7 mm Integrated ST connector for FO connection glass fiber 62 5 125 µm Bay unit Panel flush mount ing or cubicle mounting Screw connection for max 4 mm and Double leaf spring crimp contact for ...

Page 42: ... 2 2 Double Leaf Spring Crimp Contacts Connection The voltage connections of the central unit and the voltage and current connections of the bay units have double leaf spring crimp contacts For assignment of the terminals please refer to the Figures A 3 page 342 and A 5 page 345 in the Appendix Connection method current terminals Use copper conductors only Use stranded conductors with a cross sect...

Page 43: ...for connection e g a 5 strand shielded interface cable Tools No tools are required for connection the interface cables 2 3 2 4 Fiber Optic Cable Connections Central unit Depending on the variant ordered the service and the system port on the rear of the central unit may have additional fiber optic connections Figure 2 6 page 22 Moreover the central unit is connected with the bay units by fiber opt...

Page 44: ...the manual Ethernet IEC 61850 Start Up 6 Ethernet connection 8 pin RJ45 connectors 100Base T in acc with IEEE 802 3 serve as connections for the wired Ethernet100 interfaces Figure 2 10 Ethernet connection Connector type RJ45 connector in acc with IEEE 802 Lines 150 W STP shielded twisted pair Note The bending radius of the available FO cables may not be smaller than 200 mm for outdoor cables and ...

Page 45: ...l check you can now navigate in the user interface without any measured val ues You can also connect the system to a PC and operate it from the computer using the DIGSI software In the last section you will find hints on what to observe for a long term storage of the system 3 1 Unpacking and Repacking 30 3 2 Checking the Rated Data 30 3 3 Matching the Control Voltage for the Binary Inputs and Inse...

Page 46: ...ke sure that the shock requirements under IEC 60255 21 1 Class 2 and IEC 60255 21 2 Class 1 are met 3 2 Checking the Rated Data First of all check the complete ordering code MLFB of the system to ensure that the version delivered complies with the required rated data and functions The complete ordering code can be found on the rating plates on the back of the hous ings The meaning of its digits is...

Page 47: ...ule is shown in Fig ure 2 2 page 16 Remove the front plug connectors X3 X4 X5 on the D CPU module Figure 3 2 page 33 Press down the locking bolt of the modules at the bottom guide rail Use the extraction handle included in the delivery to pull out the module Change the rated control voltages for the binary inputs of the EAZ module as de sired by relocating the jumpers shown in Figure 3 1 page 32 a...

Page 48: ...for the binary inputs on the EAZ central unit in relation to the fit ted jumper Control voltage setting Name 24 V 60 V 110 V 220 V BI1 to BI5 on the D CPU module Table 3 2 page 33 BI6 X31 X21 X11 BI7 X32 X22 X12 BI8 X33 X23 X13 BI9 X34 X24 X14 BI10 X35 X25 X15 BI11 X36 X26 X16 BI12 X37 X27 X17 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 49: ...it Table 3 2 Control voltage for the binary inputs on the D CPU module central unit in rela tion to the fitted jumper Connector Binary inputs Jumper 24 V 60 V 110 V 220 V X20 X21 BI1 1 1 2 2 3 3 4 4 X22 X23 BI2 1 1 2 2 3 3 4 4 X24 X25 BI3 1 1 2 2 3 3 4 4 X26 X27 BI4 1 1 2 2 3 3 4 4 X28 X29 BI5 1 1 2 2 3 3 4 4 BI6 to BI12 on the EAZ module Table 3 1 page 32 w w w E l e c t r i c a l P a r t M a n u...

Page 50: ...of the binary inputs to the desired settings see Figure 3 3 page 34 and Table 3 3 page 35 To insert the buffer battery into the bay unit Press the battery firmly into its snap in holder see Figure 2 4 page 19 on the PFE module Observe the correct battery polarity The polarity is marked on the back of the board Figure 3 3 Location of the jumpers on the EFE module bay unit 7SS523 Warning Dangerous v...

Page 51: ... setting Name 24 V 60 V 110 V 220 V BI 1 X37 X36 X35 BI 2 X40 X39 X38 BI 3 X43 X42 X41 BI 4 X46 X45 X44 BI 5 X49 X48 X47 BI 6 X52 X51 X50 BI 7 X55 X54 X53 BI 8 X58 X57 X56 BI 9 X61 X60 X59 BI 10 X64 X63 X62 BI 11 X67 X66 X65 BI 12 X70 X69 X68 BI 13 X73 X72 X71 BI 14 X76 X75 X74 BI 15 X79 X78 X77 BI 16 X82 X81 X80 BI 17 X85 X84 X83 BI 18 X88 X87 X86 BI 19 X91 X90 X89 BI 20 X94 X93 X92 w w w E l e c...

Page 52: ...f the binary inputs to the desired settings see Figure 3 4 page 36 and Table 3 4 page 37 To insert the buffer battery into the bay unit Press the battery firmly into its snap in holder see Figure 2 5 page 20 on the PFE SVW module Observe the correct battery polarity The polarity is marked on the back of the board Figure 3 4 Location of the jumpers on the EFE_10 module bay unit 7SS525 Warning Dange...

Page 53: ...or the binary inputs on the EFE_10 bay unit in relation to the fitted jumper Control voltage setting Name 24 V 60 V 110 V 220 V BI 1 X37 X36 X35 BI 2 X40 X39 X38 BI 3 X43 X42 X41 BI 4 X46 X45 X44 BI 5 X49 X48 X47 BI 6 X52 X51 X50 BI 7 X55 X54 X53 BI 8 X58 X57 X56 BI 9 X79 X78 X77 BI 10 X76 X75 X74 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 54: ...g Connect the auxiliary voltage to the device inputs via a switch or a miniature circuit breaker Verify that the supply voltage has the correct magnitude and polarity Refer to the overview diagrams in the Chapter A 3 page 342 Close the protective switch or miniature circuit breaker to apply the auxiliary volt age The green LED on the front panel must light after no more than 0 5 s and the red LED ...

Page 55: ...n between the central unit and the bay units Connect the central unit with the bay units by fiber optic cables For detailed infor mation on connector and cable designs please refer to Chapter 2 3 2 page 25 Match the setting of the substation address the feeder address and the and the de vice address in each bay unit to the settings in the DIGSI Manager You can either set the addresses on the opera...

Page 56: ...keys and the keys only in the central unit and Central unit With the device ready for operation press first the key to enter the MAIN MENU Next select with the navigation keys or a menu item and press the naviga tion key to enter the submenu Go on moving in the same way through the operating tree until you have reached the information you are looking for To move back one level press the navigation...

Page 57: ...avigation key to go on to the submenu for the parameter 7201 DEVICE ADD see Figure 3 5 page 42 Press the key and enter the password F3F1F3F1F3F1 Confirm with the key The password is accepted and the message Passw ac cepted appears in the display Confirm 2 more times with the key The display now changes into edit mode Set the correct device address using the or the key Press the key Use the navigat...

Page 58: ...e feeder address from the operator panel of the bay unit go to the parameters 7202 FEEDER ADD feeder address or to 7203 SUBST ADD substation address and proceed as described above ENTER 7201 DEVICE ADD 1 7200 PC SYSTEM INTERFACES Enter password ENTER Passw accepted ENTER 7201 DEVICE ADD 1 CHANGE MODE ENTER F1 ESC w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 59: ...ect MAIN MENU PARAMETERS SETUP EXTRAS Contrast Press the key The current setting appears in a text box with a blinking text insertion cursor Overwrite the setting using the numeric keys A higher numeric value means a high er contrast and thus a darker image Confirm your change with the key Figure 3 6 Operator menu for setting the display contrast Note The factory setting of the contrast for the in...

Page 60: ...e The relative humidity must not lead to condensation or ice buildup If the system is to be stored for an extended period of time the components bay units and central unit power supply unit should be connected to auxiliary voltage for one or two days approximately every two years to regenerate the electrolytic ca pacitors in the power supply The same procedure should be followed before install ing...

Page 61: ...east you will assign the bay units to the substation After that you can open the configured substation chart in the DIGSI Plant Visualiza tion The Plant Visualization gives an on line overview of the current measured values restraint currents differential currents feeder currents and of the current status of the switchgear Chapter 6 6 page 249 will tell you how to handle the Plant Visualiza tion 4...

Page 62: ... first create a new project To create a new project you must Start DIGSI Manager Open the dialog box File New Specify the project name and its filing location The project window will open upon that Figure 4 1 Project window after the creation of a new project w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 63: ...vice Catalog Figure 4 2 Device Catalog Switch to the directory 7SS522 in the Device Catalog and drag the object V4 6 for the version the left mouse button depressed to the desired position within the project structure After you have released the left mouse button the dialog box Properties SIPROTEC 4 device opens with the tab MLFB In this tab you can specify the model of the central unit by selecti...

Page 64: ...to the desired position within the project structure This object represents a bay unit After you have re leased the left mouse button the dialog box Properties SIPROTEC 3 device opens with the tab MLFB In this tab you can specify the model of the bay unit by selecting the corresponding order number MLFB Repeat the procedure until you have inserted all desired bay units into the project structure w...

Page 65: ...ct the basic procedure by the example of the configura tion of a double busbar with bus coupler In order to draw and parameterize the substation you must Start the DIGSI Plant Configuration Chapter 4 3 2 page 50 Insert Typicals anywhere you need them in the chart Chapter 4 3 9 page 62 Draw the required busbars and name them Chapter 4 3 3 page 52 Insert bay names to define the required bays Chapter...

Page 66: ...SS522 Figure 4 4 Open Device dialog box Select the connection type and confirm with OK The DIGSI Device Configuration opens Unfold the directory Settings in the function selection of the DIGSI Device Config uration and select the object Substation configuration Figure 4 5 Start screen of the DIGSI Device Configuration Right click the object to open the context menu and apply the command Open objec...

Page 67: ...on cannot run simultaneously Close the Plant Visualization before you start the Plant Configuration Note For a detailed instruction on how to use the DIGSI Plant Configuration please refer to the corresponding on line help The following paragraphs describe the basic method for drawing and parameterizing a substation w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 68: ...the starting point of the busbar Hold the mouse button pressed down Draw the mouse pointer the mouse button depressed to the position that will mark the end point of the busbar Release the mouse button To modify the length of a busbar you must Click Tools Select on the menu bar Alternatively you can click the button on the toolbar Click on the starting point or on the end point of the correspondin...

Page 69: ...busbar Click Object properties in the context menu The dialog box Object Properties Busbar opens Figure 4 8 Dialog box Object Properties Busbar Enter a busbar name of not more than 4 characters into the box Name short This name will be used to characterize the associated information in the Configuration Matrix w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 70: ...ssigned to a certain bay A bay in the substation chart is represented by a bay name First you insert a wildcard for the bay name Next you specify a short name and a long name for the bay name To insert a wildcard for the bay name you must Click Tools Insert Bay Name on the menu bar Alternatively you can click the button on the toolbar Click the position on the substation chart where you wish to in...

Page 71: ...Long text This name will be displayed as movable text within the chart of the substation The long text will also be displayed in the measured value box of a transformer which is as signed to that bay As you can give identical names to different bays each long text is complemented by an automatically assigned number Click OK to apply the settings and to close the dialog box Figure 4 10 DIGSI Plant ...

Page 72: ...y and select a dynamic library Select the element in the library you wish to insert in the substation chart Click the position on the substation chart where you wish to insert the element The element you have selected in the library will be pasted in the specified location To insert additional elements of the same type into the chart click the places where you wish to insert them Figure 4 11 DIGSI...

Page 73: ...ent you must Right click a single element Click Object properties in the context menu A prop erties dialog opens for the selected element Make the required settings Click OK to apply the settings and to close the dialog box Note Further information on setting the element property values can be found in the on line help of the DIGSI Plant Configuration w w w E l e c t r i c a l P a r t M a n u a l ...

Page 74: ... on an already existing line A connection will be inserted automatically in the junction point of the two lines To draw a line you must Click Tools Draw Line Alternatively you can click the button on the toolbar Click the place in the chart which is to be the starting point of the line Hold the mouse button pressed down Draw the mouse pointer the mouse button depressed to the position that will ma...

Page 75: ...a connection you must Click Tools Insert Connection on the menu bar Alternatively you can click the button on the toolbar In the chart click on the position of a busbar or line where you wish to insert a con nection To delete a manually added connection you must Draw a new busbar across the connected busbar sections if you want to delete the connection between two busbars The connection and the bu...

Page 76: ... in the configuration tool under Tools Set Reference Value When exiting the configuration you can choose between the calculated value or the one you have defined in the dialog Specifying a reference Value Figure 4 13 page 60 A lower value allows you for example to increase the sensitivity of the differential current supervision because it has a lower setting limit of 5 l lno The normalized current...

Page 77: ...ls Insert Text Alternatively you can click the button on the chart toolbar Click the position on the substation chart where you wish to insert the text A text input box opens Write the desired text into this box That finished click the green check mark to the right of the text box The text will be placed left aligned to the selected insertion point Figure 4 14 DIGSI Plant Configuration Inserting s...

Page 78: ...st Click Edit Insert Graphic Typical from on the menu bar The Open dialog box pops up Select the drive of the Typical file from the Browse drop down list box Select a folder in the drop down list box You will find the supplied template files in the folder SSTypicals All available files with the extension sst are displayed in the box Select the name of the Typical file you wish to open Click OK to ...

Page 79: ... and Chapter 7 1 3 3 page 259 For each bay unit you may configure not more than one transfer bus isolator Transfer bus operation is only possible with transfer bus isolators of different bay units Only switchgear or current transformers of the same bay may be assigned to a bay unit Except sectionalising isolators An example of a triple busbar with transfer busbars is shown in Figure 4 15 page 64 T...

Page 80: ...er busbar 1a inside current transformer referred to Q7 in the direction of the busbar referred to Q0 1b inside current transformer referred to Q7 in the direction of the line referred to Q0 2 line inside current transformer referred to Q7 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 81: ...r Bus side t line 05 2 bay coupler Bus side t line 06 Section isolator non existent 07 Feeder bay 1a Bus side t bus 1b Bus side t line 2 line side 08 2 bay coupler Bus side t line 09 2 bay coupler non existent 1a inside current transformer referred to Q7 in the direction of the busbar referred to Q0 1b inside current transformer referred to Q7 in the direction of the line referred to Q0 2 line sid...

Page 82: ... Bus side t line 02 Feeder bay line side 03 Feeder bay line side 04 1 bay coupler w o CB Bus side t bus 05 Section isolator non existent 06 1 bay coupler Bus side t bus 07 Feeder bay line side 08 Section isolator non existent 09 1 bay coupler Bus side t line 10 Section isolator non existent 11 Feeder bay line side 12 Feeder bay line side w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 83: ...n and setting of the bus coupler bays please refer to Chapter 7 1 3 page 258 Isolator Up to 5 isolators can be connected to each bay unit Transferbus isolators must be marked correspondingly in the Object Properties For each isolator one auxiliary contact for recognition of the OPEN position and one auxiliary contact for recognition of the CLOSED position is wired to the bay unit The binary inputs...

Page 84: ...age 64 1b line side means that the transformer is located downstream of the feeder isolator Figure 4 15 page 64 2 For the end fault protection the position of the current transformer relative to the circuit breaker is important position 1 a or 1b and 2 respectively For the behaviour or the protection in bypass operation the position of the current transformer relative to the transfer busbar isolat...

Page 85: ...sformer T1 from the example given in Figure 4 17 page 68 Figure 4 19 Example for the configuration of a 2 bay coupler with two CTs Please note the crosswise assignment of the transformers Bay Bay unit E01 E02a E02b E03 E04 BU 1 BU 2 BU 3 BU 4 BU 5 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 86: ...Configuration 70 7SS52 V4 Manual C53000 G1176 C182 3 Figure 4 20 Object properties of the transformer from the example given in Figure 4 19 page 69 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 87: ...alues and switch states Furthermore the central unit will not start without the assign ment of the bay units To assign bay units you must Open the folder Settings in the DIGSI Device Configuration and select the function Bay unit allocation Figure 4 21 DIGSI Device Configuration The folder Settings Right click the object to open the context menu and apply the command Open ob ject You can also doub...

Page 88: ...ts that are already assigned will not appear in the drop down list If there are not enough bay units available you must create new ones in the device manager see Chapter 4 2 page 47 Note You can print the assignment of the bay units via the menu File Print The printout contains the number 1 to 48 the configured virtual bay unit and the physically exist ing bay unit created in the Device Manager w ...

Page 89: ... data and binary input data are pre allocated see Table A 22 page 395 The Chapter A 9 page 373 gives an overview of all possible indications with their func tion number FNo Binary outputs and LED indicators The central unit features 16 alarm relays and 32 LED indicators Any number of annunciations can be marshalled to a binary output group annuncia tion The most common group annunciations with the...

Page 90: ...enu bar Double click the command button Long text on the upper bar of the Configuration Matrix to hide this column For a detailed description please refer to the SIPROTEC System Description 1 and to the DIGSI on line help Information of the type Indications and Commands allocated to one source and or destination are now displayed depending on the selected filter You will recognize an allocation by...

Page 91: ...x contains several predefined information items They can be complemented by user defined information items You can insert such user defined information items into the Configuration Matrix by using the Information Catalog Click Insert Information or View Information Catalog on the menu bar The Information Catalog opens Figure 4 24 Information Catalog The Information Catalog is basically structured ...

Page 92: ...on is made under 6201 BU Several logic signalling functions up to 20 can be marshalled to the signal output Indications starting with are the direct checkbacks of the binary inputs and are identical to them They appear for as long as the corresponding binary input is active The default setting of the signal relay is Bay o of Serv FNo 7640 BU Chapter A 10 page 383 contains the complete list of all ...

Page 93: ...on delivery are comprised in Table A 29 page 399 and Table A 33 page 402 The functions stated in Chapter A 10 page 383 can also be marshalled to the trip re lays 4 6 2 2 Marshalling Unlike the central unit the bay units are marshalled via dialog boxes and not via a con figuration matrix To perform allocations for a bay unit you must Open the bay unit in DIGSI Manager Open the dialog box Marshallin...

Page 94: ...play texts of these in dications are shown in the column Status Those allocating positions that are still empty are in the same column marked with the entry Not allocated Figure 4 27 Marshalling the bay units the dialog box Binary input 1 To allocate a further message select one of the entries marked Not allocated To modify an existing allocation select the display text of the marshalled message S...

Page 95: ...cedure to perform further allocations When you have made all allo cations for the current component click Close The active dialog box closes and you return to the previous dialog box You can now select a further component if needed If not click Close The active dialog box closes and you return to the dialog box Marshalling You can now select a further component group for configuration To finish th...

Page 96: ... in the corresponding box in the column Value A drop down list box opens from which you select the new setting Subsequently change the value of a decimal parameter For this purpose click in the corresponding box in the column Value The mouse cursors changes into an in put cursor Now you can enter the new numerical value The unit of a value is as signed automatically Click OK The dialog box Power S...

Page 97: ...or responding interface parameters which you can access successively by mouse click Figure 4 29 DIGSI settings of the PC port Serial PC port Indicate on the first tab sheet Serial port on PC the communication port of your PC connected to 7SS52 V4 COM 1 or COM 2 etc You do not have to enter manually the settings for the data format and for the baudrate You can take over the values from the tab Oper...

Page 98: ... If the transmission quality between the modems is good we recommend the setting 1 0 s If modem connections are poor you should increase this value High values slow down communication in case of transmission errors If a PC is con nected directly the Max message gap can be set to 0 0 s Other ports In the other tabs you can enter your specific settings and addresses for device identi fication or che...

Page 99: ...arrow key Press the key to access the sub menu of each port The display and the option of parameterizing directly at the device are identical for the PC port and for the service port We will take the example of the PC port Figure 4 32 page 83 Figure 4 32 Reading and setting the PC port via the operator panel of the device The type of the port s depends on the device model and variant and may also ...

Page 100: ...meter Select the desired value Subsequently click OK The current dialog box closes and you return to the previous dialog box The display in the column Value is updated according to your selection Repeat the procedure for further parameters Click Close to finish the procedure The current dialog box closes and you return to the dialog box Operating System Configuration Click Close Next you will be p...

Page 101: ...es via binary input Time synchronization You find the parameters for the clock management in DIGSI at Settings Time Syn chronization Figure 4 34 page 85 Figure 4 34 The window Settings in DIGSI Example Double click Time Synchronization The Time Synchronization Time Format di alog box opens Figure 4 35 page 86 Note Upon delivery of the device the internal clock RTC is always set by default as synch...

Page 102: ...lly The manual set ting of date and time is described in Chapter 6 3 7 page 239 If one of the external operating modes is selected only the parameterized synchroni zation source will be used If it fails the internal clock will continue in unsynchronized mode Table 4 3 Operating modes of the clock management No Operating mode Comments 1 Internal Clock Internal synchronization via RTC default 2 IEC ...

Page 103: ...lt indication after indicates how long a cyclic syn chronization may be missing until the time is considered faulted An external or internal synchronization is usually performed in minute intervals The synchronization by external pulse via binary input is an exception Its pulse may arrive in intervals of several minutes Therefore this parameter must always be at least 2 minutes If the conditions f...

Page 104: ...cipated afterwards the message is displayed with the time before the step The message Clock SyncError off is triggered if the synchronization has taken effect again e g after faulted reception or radio clock reception immediately after a time step this message is displayed with the time after the step so that conclusions can be drawn as to the magnitude of the step Time format Either the European ...

Page 105: ...xiting the Plant Configuration you must Click Options Customize on the menu bar of the DIGSI Plant Configuration The window Customize opens Figure 4 36 Customize window Example Mark the checkbox Show evaluation protocol when exiting Subsequently click OK The evaluation protocol report Figure 4 37 page 89 opens when you exit the Plant Configuration Figure 4 37 Evaluation protocol report when exitin...

Page 106: ...et After you have entered the password and confirmed it with OK the data will be transmitted and take effect when the transmission to the central unit or the bay units is completed Table 4 4 Allocation of isolator Value Allocation of isolator 0 isolator not existent 100 1200 BB isolator or sect isolator left side on BB01 BB12 5100 6200 BB isolator or sect isolator left side on TB01 TB12 1 12 sect ...

Page 107: ...on 92 5 2 Check Zone 112 5 3 Circuit Breaker Failure Protection 114 5 4 End Fault Protection 135 5 5 Supervisory Functions 140 5 6 Oscillographic Fault Recording 160 5 7 Device 163 5 8 Power System Data 166 5 9 Protection General 167 5 10 Bay Unit 177 5 11 Integrated Operation of the Bay Unit 178 5 12 PC Port of the Bay Unit 180 5 13 Fault Recording in the Bay Unit Local Fault Recording 182 5 14 S...

Page 108: ...busbar are de fined as positive and the currents flowing away from the busbar as negative I1 I2 I3 In 0 1 If this equation is not fulfilled there must be some other impermissible path through which a current flows This means that there is a fault in the busbar region This law is superior as the basis for busbar protection to any other known way of measurement A single quantity characterizes faulty...

Page 109: ...rrent flowing into the short circuit is shared on the infeed side by several bays The current transformers in the infeeding bays carry only a fraction of the total fault current while the current transformer in the faulted feeder bay carries the full current in its primary winding If the fault current is very high this set of current transformers may therefore be saturated so tending to deliver on...

Page 110: ...s which acts in the operating sense and the arithmetic sum of those quantities which has a restraining effect The stabilizing restraint current thus obtained is additionally smoothed by the soft ware Figure 5 2 page 94 to ensure stability even in cases of extreme saturation Figure 5 2 Formation of the stabilizing restraint current Characteristic The operating conditions for the busbar protection v...

Page 111: ...same scale If a short circuit occurs on the busbars whereby the same phase relation applies to all infeeding currents Id is equal to Is The fault characteristic is a straight line inclined at 45 Any difference in phase relation of the fault currents leads to a practically insignifi cant lowering of the fault characteristic Since in fault free operation Id is approximately zero the x axis may be re...

Page 112: ...ch components increasingly polar ize the iron core Figure 5 5 page 98 illustrates the condition in the extreme case of an initially fully off set short circuit current An additional problem in this case is remanence of the current transformer under consideration remanence for instance after an auto reclosure which is presumed to be present in this case Figure 5 5 page 98 a depicts the initially fu...

Page 113: ...on the following assumption The current flows into a short circuit within the protection zone via a cur rent transformer The current transformer shows the behaviour illustrated in Figure 5 5 page 98 a The stabilization factor k is again assumed to be 0 65 In this case the tripping differential current Id prevails right from the beginning of the short circuit But since the current transformer satur...

Page 114: ... V4 Manual C53000 G1176 C182 3 Figure 5 5 CT currents and measured values in the event of an initially fully offset fault cur rent DC component decaying with τ 64 ms w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 115: ...me will elapse after short circuit inception before the magnetic flux in the iron core reaches the saturation level This is true even under extreme conditions such as a very large short circuit cur rent or a large DC component with a long time constant This process will typically last from a quarter cycle to a half cycle in both conventional current transformers with a closed iron core and in line...

Page 116: ... Chapter 5 1 1 2 page 94 The filter algorithm operates in parallel to the instantaneous values algorithm so that both algorithms can initiate a trip independently of one another In the presence of an external fault the filter algorithm is blocked for 150 ms by the in stantaneous values algorithm to avoid the risk of spurious tripping in case of highly sat urated differential currents see also Figu...

Page 117: ...to the busbars Therefore no special demands such as adjustment are made on the isolator auxiliary contacts The CLOSED position is only used for the isolator status supervision isolator malfunction isolator intermediate position For the determination of the isolator runtime the status changes of the two indications Isolator OPEN and Isolator CLOSED are used Therefore a true replica of the isolator ...

Page 118: ... This ensures that an isolator will only be considered open if all the three poles are open In any other case the isolator will be processed as closed The isolator states of each feeder are indicated in the bay units 7SS523 by red or green LEDs The preselection can be seen in Table A 30 page 400 The isolator replica of the entire plant can be visualized in graphic form using the DIGSI Plant Visual...

Page 119: ...er can have different design variants The bus coupler variants are automatically recognized by the DIGSI Plant Configuration The admissible types of bus couplers are shown below Figure 5 11 Examples of bus coupler variants 5 1 3 1 Bus Couplers with One Current Transformer Bus couplers with circuit breaker and one current transformer Figure 5 11 page 103 are the most common variant The low cost of ...

Page 120: ...e up to 5 isolators If a coupler comprises more than 5 isola tors two bay units are needed even in configurations with only one current transform er For the connection of the bay units please refer to Chapter 7 1 3 3 page 259 5 1 3 5 Combi Coupler The arrangement of the different switchgear elements is usally free and subject mainly to the operational requirements Sporadically the switching elemen...

Page 121: ... the bus coupler Monitoring of the isolator states in the feeder and coupling bays ensures that this happens only after the bus or feeder isolator had been opened Up to the final bypass operation intermediate switching positions occur The alloca tion of the respective feeder to the bus zone during this time depends on the current transformer location bus side or line side Figure 4 15 page 64 shows...

Page 122: ...BZA TB Check zone Yes Line side Feeder connect to BZA Feeder Bus side Feeder bus coup no 1 protect Feeder Coup No Line side Feeder connect to BZA Feeder Bus side Feeder bus coup unpro tected Feeder Coup 1 The current being fed by the feeder or into the feeder cannot be measured PROT TR BUS 5401 CU Meas system Bay CT BZA TB Check zone Yes Line side coupler Feeder Coup Feeder Bus side coupler no 1 p...

Page 123: ...one with an unprotected trans fer busbar Figure 5 14 Transfer operation without transfer busbar protection 1 configured and detected 2 existing but not configured 5 1 3 8 Special Cases of Transfer Busbar Operation Transfer Busbar Operation with Sev eral Feeders The transfer operation is usually established for one feeder For this a feeder is connected to the transfer combination busbar via the cou...

Page 124: ...actor is calculated from the maximum continuous short circuit current Iscc max and the current Isat at which CT saturation begins Kb Iscc max Isat The saturation current Isat can be calculated from the rated current Ipn and the ef fective factor of the symmetrical rated short circuit current K ssc which used to be called operational overcurrent factor n Isat Ipn K ssc Ipn primary rated current The...

Page 125: ... parameter Id BZ 6102 CU A current below this threshold causes the pickup to drop off To calculate the highest permissible setting determine first the smallest fault current to be expected in case of a busbar short circuit The set value should have an extra response margin of about 20 The lowest permitted setting is Imax feeder 30 1 3 Imax feeder Id BZ 0 8 Iscc min Id BZ EF The parameter Id BZ EF ...

Page 126: ...ection only those normalized currents Id are consid ered which exceed the diff current threshold set in the parameter Id CZ 6104 CU A current below this threshold causes the pickup to drop off To calculate the highest permissible setting determine first the smallest fault current to be expected in case of a busbar short circuit The set value should have an extra response margin of about 20 The sma...

Page 127: ... 0 50 Stabilizing factor check zone 6104 Id CZ 0 20 4 00 I Ino 1 00 I Ino Diff current threshold check zone 6108A Is BZ EF 0 00 25 00 I Ino 5 00 I Ino Stabilizing current threshold BZ EF 6109A Id BZ EF 0 05 4 00 I Ino 0 25 I Ino Diff current threshold selective EF 6110A Is CZ EF 0 00 25 00 I Ino 4 50 I Ino Stabilizing current threshold CZ EF 6111A Id CZ EF 0 05 4 00 I Ino 0 25 I Ino Diff current t...

Page 128: ...e busbar Istab lesser of the above two sums By forming the stabilizing current in this manner only half of the total through flowing load current acts as stabilizing current The short circuit current does not stabilize the check zone and only acts as differen tial current This procedure is illustrated in Figure 5 15 page 112 and in the equations below Figure 5 15 Treatment of the stabilizing curre...

Page 129: ... 6104 CU Id CZ EF 6111A CU and Is CZ EF 6110A CU Chapter 5 1 4 page 108 5 2 3 Settings for the Central Unit Addr Setting Title Setting Options Default Setting Comments 6103 StAB FAC CZ 0 00 0 80 0 50 Stabilizing factor check zone 6104 Id CZ 0 20 4 00 I Ino 1 00 I Ino Diff current threshold check zone 6110A Is CZ EF 0 00 25 00 I Ino 4 50 I Ino Stabilizing current threshold CZ EF 6111A Id CZ EF 0 05...

Page 130: ...emote feeder terminal has to be interrupted For this purpose the 7SS52 V4 issues a transfer trip signal 5 3 1 Characteristics for the Circuit Breaker Failure Protection Standard characteristic The unbalanced mode has two separate parameter sets one for 1 pole high resist ance earth faults and the other for multi pole faults Figure 5 16 page 114 shows the characteristics and the setting parameters ...

Page 131: ...re and or resets a TRIP Is BF EF The parameter Is BF EF 6202A CU is used to set the stabilizing current threshold Is Ino for the breaker failure protection in the presence of an earth fault The setting of the parameter depends on the maximum stabilizing current to be ex pected and on the behaviour of the CTs This parameter is only displayed if the parameter EF charact 6320A CU is set to released W...

Page 132: ...ts 118 I BF 0 10 2 00 I In 0 50 I In Current threshold for BF 119 I BF EF 0 05 2 00 I In 0 25 I In Current threshold for BF EF 6201 STAB FAC BF 0 00 0 80 0 50 Stabilizing factor BF protection 6202A Is BF EF 0 00 25 00 I In 5 00 I In Stabilizing current threshold BF EF FNo Alarm Comments 10478 EF charact Earth fault characteristic active w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 133: ... the breaker failure protection CBF L1 FNo 7611 BU CBF L2 FNo 7612 BU CBF L3 FNo 7613 BU or CBF 3 pole FNo 7621 BU is activated erroneously a feeder current above the threshold for the breaker failure protection is apt to cause a spurious trip of the busbar The following monitoring measures can be taken to detect this kind of errors in time If a triggering signal is present for more than 15 s the ...

Page 134: ...C53000 G1176 C182 3 Figure 5 18 Triggering and releasing the breaker failure protection 1 pole Figure 5 19 Monitoring the breaker failure protection triggering and release 3 pole w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 135: ... CBF In the 2 stage CBF operating modes a second bay selective TRIP command is output by the bay unit after the delay T TRIP repeat XX25 CU has elapsed to provide in any case for a trip of the circuit breaker This can be useful for instance if the circuit breaker has a second trip coil or a control circuit that is separate from the bay protec tion The affected bus zone is not disconnected until a ...

Page 136: ...ns 120 7SS52 V4 Manual C53000 G1176 C182 3 Figure 5 20 Triggering by binary inputs Figure 5 21 Logic of the current check of the breaker failure protection w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 137: ... V4 Manual C53000 G1176 C182 3 Figure 5 22 Breaker failure protection logic operating modes Continuation for 1 and 2 see Figure 5 46 page 205 Continuation for 3 and 4 see Figure 5 24 page 125 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 138: ...ame ter I BF XX18 CU or I BF EF XX19 CU A current above this threshold starts the delay time for the TRIP repetition which is set with the parameter T TRIP re peat XX25 CU If this release criterion is fulfilled for all of the delay time for the TRIP repetition the bay unit issues a 1 pole or 3 pole TRIP command to the local circuit breaker A single pole TRIP repetition is generated on condition th...

Page 139: ...nitude of the current in the CBF initiating feeder Figure 5 23 Principle of unbalancing for the circuit breaker failure protection The BZ unbalance mode has two separate parameter sets one for 1 pole earth faults and the other for multi pole faults The sensitive earth fault characteristic is re leased by a binary input in the central unit Figure 5 16 page 114 shows the charac teristics and the set...

Page 140: ... the affected bus zone is issued If the feeder current exceeds this one with the parameter I BF XX18 CU adjusted limiting value the low current mode is blocked Logic of the current release see Figure 5 21 page 120 With the operating modes non existent and external to be set with the param eter BF OP MODE XX15 CU this function has no influence For more information on the operating modes please refe...

Page 141: ...on at the remote end via a binary input CBF puls FNo 7614 BU of the bay unit The devices for transmission provide a signal pulse of variable duration The mini mum signal duration of the binary input at the bay unit has to be 20 ms the maximum is 15 s If the time monitoring of the impulse binary signal of the breaker failure protec tion picks up the following alarm BFBIImpErr 00 FNo 176 1104 xx and...

Page 142: ...ed On issuing a TRIP command the currents are monitored in all feeders which are to be tripped If the current persists above the feeder selective threshold set with the param eter I BF XX18 CU after the delay time has elapsed the corresponding bay unit is sues a transfer trip command Figure 5 26 page 126 In the case of a circuit breaker failure the alarms Trip Lx CZ FNo 10457 CU 10458 CU 10459 CU ...

Page 143: ...BF 03 Lx 177 1352 03 CU 177 1353 03 CU 177 1354 03 CU TRIP 03 G 177 1341 03 CU TranfTrip 00 176 1082 00 CU TRIP BBP G FNo 10449 TRIP 03 Lx 177 1342 03 CU 177 1343 03 CU 177 1344 03 CU and the group alarm Transf Trip G 10433 CU are issued Figure 5 27 Fault on bus zone BZ A and failure of the bus coupler circuit breaker 5 3 5 5 Circuit Breaker Not Ready For the detection of malfunctions in the tripp...

Page 144: ...ted only by the feeder selective binary input with time supervision With setting 2 ch w o sup the breaker failure protection will be initiated after eval uation of an additional binary input CBF release without time supervision With setting 2 ch w sup the breaker failure protection will be initiated after evalua tion of an additional binary input CBF release with time supervision For testing purpo...

Page 145: ...e parameter BF I XX16 CU is used to activate and deactivate the low current mode With setting ON the low current mode is activated With setting OFF the low current mode is deactivated The low current mode can be used together with the following settings BF BI MODE XX14 CU with and without supervision BF OP MODE XX15 CU Breaker failure operating mode in the settings I query TRIP repetition I query ...

Page 146: ... BF 1P XX20 CU is then to be set higher than the sum of the delay times set with parameters T TRIP repeat XX25 CU and the time the circuit breaker requires for tripping in order to avoid premature or unnecessary tripping of the bus zone T BF mP The parameter T BF mP XX21 CU is used to delay for multipole faults the TRIP command and the transfer trip signal issued by the breaker failure protection ...

Page 147: ...MP XX23A CU T BF rel sup If the parameter BF BI MODE XX14 CU is set to with supervision the the parameter T BF rel sup XX27 CU is used to set the time for supervising the du ration of the CBF release signal T BF 2chan The parameter T BF 2chan XX28 CU is used to set the supervision delay during which counting from the initiation moment the release signals for the breaker failure protection must be ...

Page 148: ...t threshold for BF EF 120 T BF 1P 0 05 10 00 s 0 25 s Time delay for BF with 1 pole faults 121 T BF mP 0 05 10 00 s 0 25 s Time delay for BF with multi pole faults 122 T BF I 0 05 10 00 s 0 25 s Time delay for BF low current mode 123A T BF IMP 0 05 10 00 s 0 50 s Time delay for BF pulse mode 124 T BF CB fault 0 00 10 00 s 0 10 s Time delay BF after CB fault 125 T TRIP repeat 0 00 10 00 s 0 12 s Ti...

Page 149: ...fTrip 00 Breaker failure Transfer trip 00 176 1091 BFBIErr 00 L1 Timing error BF input 00 L1 176 1092 BFBIErr 00 L2 Timing error BF input 00 L2 176 1093 BFBIErr 00 L3 Timing error BF input 00 L3 176 1094 BFBIErr 00 3P Timing error BF input 00 3pole 176 1101 BFRlErr 00 1P Timing error BF release 00 1pole 176 1102 BFRlErr 00 3P Timing error BF release 00 3pole 176 1104 BFBIImpErr 00 Timing error BF ...

Page 150: ...17 CB OFF Circuit breaker open 7619 CB not ready Circuit breaker not ready 7621 CBF 3 pole Circuit breaker failure start 3 pole 7622 CBF rel 3p Circuit breaker failure release 3 pole 7632 CBF Trp rp 3p CBF protection Trip repeat phase L123 7633 CBF Trp rp L1 CBF protection Trip repeat phase L1 7634 CBF Trp rp L2 CBF protection Trip repeat phase L2 7635 CBF Trp rp L3 CBF protection Trip repeat phas...

Page 151: ...sbar protection If a data transmis sion feature is provided it can also issue a transfer trip command to the circuit breaker at the remote end End Flt Trip FNo 7644 BU The feeder protection would interpret such a situation as a fault in reverse direction and trip with the resulting delay Without any transmission channels the fault is only cleared with a distance dependent time offset by the remote...

Page 152: ...gure 5 29 End fault protection CT location 1a inside relating to Q7 current transformers busbar side relating to Q0 1b inside relating to Q7 current transformers line side relating to Q0 2 line side current transformers relating to Q7 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 153: ...to the tripping of the BZ2 busbar that is feeding the fault and hence to the final fault clearing Bus coupler with two current trans formers If the bus coupler bay is equipped with two transformers the two busbars BZ1 and BZ2 will be switched off without delay since the fault is located in the overlapping pro tected area of both zones 5 4 2 2 With detection of the circuit breaker position circuit ...

Page 154: ...reaker is closed onto a short circuit in bus zone BZB the protection trip may be faster than the circuit breaker status processing This may cause spurious tripping of the healthy bus zone BZA To avoid this a leading contact for closing the circuit breaker integrates the current of the coupler current transformer into the protection algorithm The circuit breaker position must be detected by the bin...

Page 155: ...etting Options Default Setting Comments 118 I BF 0 10 2 00 I In 0 50 I In Current threshold for BF 119 I BF EF 0 05 2 00 I In 0 25 I In Current threshold for BF EF 120 T BF 1P 0 05 10 00 s 0 25 s Time delay for BF with 1 pole fault 121 T BF mP 0 05 10 00 s 0 25 s Time delay for BF with multi pole faults 125 T TRIP repeat 0 00 10 00 s 0 12 s Time delay for TRIP repeat 126 T CB open 0 00 10 00 s 0 0...

Page 156: ...n Dev operative FNo 00051 CU Each bay unit has moreover its own NC contacts which generate a live status annun ciation Dev operative FNo 51 BU In these cases the red ERROR LED shines on the front panel of the central unit or of the affected bay unit 5 5 1 1 Zone Selective Blocking In most cases it will be desirable in the case of external or internal faults and malfunc tions of the 7SS52 protectio...

Page 157: ...r 5 5 1 3 page 142 The measured value error consists of the offset monitoring and the current sum mon itoring Furthermore the measured values read in with gain 1 and 16 are checked for plausibility to each other If one of these errors occurs the protection is immediately blocked selectively or entirely and the error is signalled If the error has been present longer than 1 s the blocking is permane...

Page 158: ... Depending on the setting of the parameter BLOCKING MODE 6305 CU a failure of the auxiliary voltage in a bay unit results in a selective or complete blocking of the pro tection system 5 5 1 3 Measured Value Supervision The analog input circuits of the bay unit are cyclically monitored from the input trans ducers up to the digitalization This is done by forming the current sum and executing the fol...

Page 159: ...a on the master module 5 5 1 4 Output Trip Supervision The output trip channels of the bay unit are controlled via two trip channels and one release channel The trip output channels are checked in connection with the cyclic protection test Chapter 5 5 1 7 page 144 5 5 1 5 Battery Monitoring The central unit and the bay units are equipped with buffer batteries to ensure that LED states date and tim...

Page 160: ...est M FNo 10429 CU Single alarm Flt aut 00 FNo 176 1190 CU The following indications provide more detailed information on the bay unit con cerned Relay control circuit flt trip possib FNo 7689 BU Relay1 control circuit flt no trip pos FNo 7691 BU Relay2 control circuit flt no trip pos FNo 7692 BU Relay3 control circuit flt no trip pos FNo 7693 BU Relay4 control circuit flt no trip pos FNo 7694 BU ...

Page 161: ...al current supervision the reaction can be set indi vidually for the check zone with the parameter DIF SUP mode CZ 6311 CU and for the selective protection with the parameter DIF SUP mode BZ 6310 CU The following alarms are generated Group alarms selective Id sup BZ M FNo 10415 CU Id sup BZ L1 M FNo 10416 CU Id sup BZ L2 M FNo 10417 CU Id sup BZ L3 M FNo 10418 CU Id sup 03 M FNo 177 1331 CU Group ...

Page 162: ...rents Isolator statuses The isolator positions OPEN CLOSED Intermediate Position are issued in the following indications in function of the status FNo 176 1110 CU FNo 176 1115 CU FNo 176 1120 CU FNo 176 1125 CU and FNo 176 1130 CU Here 1 1 intermediate position and 0 0 running position are combined Isolator running status If an isolator changes position for instance from the OPEN position it needs...

Page 163: ... lines for the isolator status In that case the isolator is considered to be CLOSED However the so called preferential treatment can lead to unselective tripping if all of the following conditions apply Wire break in the checkback signal line for the isolator status Isolator is in OPEN position Fault on one busbar Second isolator of the feeder is in CLOSED position Non selective tripping can be pr...

Page 164: ...ult is acknowledged While a bay is in maintenance there is no monitoring of the isolator status checkback signals nor a plausibility check Reset of isolator alarms Depending on the setting of the parameter ISOL Malfunct 6302 CU several types of behaviour of the blocking are possible see Figure 5 34 page 149 The function is reset with the control Reset IsoMalBl or by the binary input Reset IsoMalBl...

Page 165: ...ned to a busbar An alarm is generated e g 01 02 FNo 176 1110 CU 176 1115 CU 176 1120 CU 176 1125 CU 176 1130 CU a 1 1 Position tv 500 ms 6304 CU is effective During the delay time tv the old isolator position is kept b 0 0 Exceeding of the runtime tv 6301 CU isolator in CLOSED position The isolator position CLOSED is kept c 0 0 Auxiliary voltage failure tv 500 ms 6303 CU is effective During the de...

Page 166: ...C182 3 Figure 5 35 Alarms and Blockings upon Auxiliary Voltage Failure Note Blocking will only be performed if the bay suffering an isolator auxiliary voltage failure is assigned to a busbar w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 167: ... final position of the circuit breaker is only recog nized Figure 5 36 page 151 if all three auxiliary contacts are closed If the CLOSED and OPEN position is continuously implausible for a longer period than set in the parameter CB SUP TIME 6315 CU this leads to a fault annunciation Ta ble 5 2 page 152 The setting of the runtime monitoring of the circuit breaker with the parameter CB SUP TIME 6315...

Page 168: ...B CLOSE command 0 0 0 1 Failure CB fault 01 FNo 176 1136 CU 0 1 0 Closed Closed 0 1 1 Closed by CLOSE command CB fault 01 FNo 176 1136 CU 1 0 0 1 Open Open 1 1 0 1 Failure CB fault 01 FNo 176 1136 CU Monitoring Possible cause and response Auxiliary voltage supervision Failure of the DC DC converter output voltag es Blocking of protection and alarm BU 0 V Digit 15 V Digit CU 15 V 24 V 0V superv 00 ...

Page 169: ... 1128 176 1133 CU Cyclic check of the data transmission links FO between central unit and bay unit Blocking of the protection system and alarm after two recognitions of a transmission error Fail Com CU FNo 7650 BU Monitoring of CBF Lx CBF 3 pole for T 15 s CBF Lx CBF 3 pole and CBF release release 3 pole for T T BF 2chan XX28 CU CBF release release 3 pole for T T BF rel sup XX27 CU B U CBF Lx B U ...

Page 170: ... a pickup of the differential current supervision Id SUPERV BZ The parameterId SUPERV BZ 6308 CU is used to set the threshold I Ino for se lective differential current supervision Id SUPERV CZ The parameter Id SUPERV CZ 6309 CU is used to set the threshold I Ino for dif ferential current supervision in the check zone The monitoring limit value should be set as low as possible generally to the doub...

Page 171: ...lock release the blocking of the affected phase and zone is treated as with blocking It differs from the setting blocking in that the protection is re leased by an operator input Reset Id Block or via a binary input Reset Id Block BI FNo 6 CU as soon as the malfunction is eliminated ZERO CR SUPERV When an external fault is tripped by an external protection device linearized current transformers wi...

Page 172: ...CLOSED ISOL Malfunct The parameter ISOL Malfunct 6302 CU is used to select the response of the pro tection to isolator malfunctions runtime or plausibility error auxiliary voltage failure With setting alarm only isolator malfunctions will only lead to the output of an alarm The protection will not be blocked With setting blocking isolator malfunctions will lead to the output of an alarm and to a b...

Page 173: ...sec Limit value isolator time 6302 ISOL Malfunct alarm only blocking block release block acknow alarm only Reaction on isolator malfunction 6303 ISOL DC FAIL OLD ON OLD Treatment isolator status on DC fail 6304 ISOL ST 1 1 OLD ON OLD Treatment isolator status not plausible 6305 BLOCKING MODE zone phase protection zone phase Blocking mode on failure 6306 DIFF SUPERV ON OFF ON Differential current s...

Page 174: ...sol flt alarm Isolator fault alarm 10426 Bay DC fail M Failure of isolator aux voltage g a 10427 Isol flt run M Isolator fault run time group alarm 10428 Isol flt pos M Isolator position faulty group alarm 10429 Flt autotest M Failure in auto testing group alarm 10444 Block ZeroCross Blocking by supervision zero crossing 10470 IsoProhib fault Isolator oper prohibitted isol fault 176 1091 BFBIErr 0...

Page 175: ...SUM 00 176 1190 Flt aut 00 Failure in automatic testing 00 177 1321 Id supL1 2 03 Id sup 03 L1 2 177 1322 Id supL2 2 03 Id sup 03 L2 2 177 1323 Id supL3 2 03 Id sup 03 L3 2 177 1326 Id supL1 3 03 Id sup 03 L1 3 177 1327 Id supL2 3 03 Id sup 03 L2 3 177 1328 Id supL3 3 03 Id sup 03 L3 3 177 1331 Id sup 03 M Id sup 03 M FNo Alarm Comments FNo Alarm Comments 51 Device OK Device is Operational and Pro...

Page 176: ...ore the TRIP command to max 500 ms after it The period for the fault recording is max 5s Up to 8 fault records can be viewed in the central unit New fault records are always entered in the fault record data buffer As soon as the fault record data buff er is full new fault data overwrite the older data Fault recording is initiated for in stance by a busbar short circuit by binary ínput 2 marshalled...

Page 177: ...e criterion is fulfilled The stor age criterion is set with the parameter INITIATION 7402 BU in the bay unit Chap ter 5 13 2 page 182 MAX LENGTH The parameter MAX LENGTH 6404 CU is used to set the maximum time available for one fault record PRE TRIG TIME The parameter PRE TRIG TIME 6405 CU is used to set the pre trigger time for fault recording The pre trigger time starts at the specified time bef...

Page 178: ...ng 6404 MAX LENGTH 0 30 5 00 sec 2 00 sec Max length of a Waveform Cap ture Record 6405 PRE TRIG TIME 0 05 0 50 sec 0 20 sec Captured Waveform Prior to Trigger 6406 POST REC TIME 0 05 0 50 sec 0 20 sec Captured Waveform after Event 6407 BinIn CAPT TIME 0 10 5 00 sec 0 40 sec Capture Time via Binary Input Addr Parameters Setting Options Default Settings Comments 7402 INITIATION STORAGE BY FD STORAG...

Page 179: ...tion supplied with the Reset Device annunciation Relevant information On Device OK Annunciation Device is operational and protecting With this annunciation the readiness relay picks up and the Error LED goes out Relevant information On Setting Calc Annunciation Setting calculation is running Relevant information On the function is occupied by the parameter setting process Relevant information Off ...

Page 180: ...rection is marked with the Transmission block bit The actual transmission blocking is performed in the con trol center Relevant information On Off HWTestMod Hardware test mode This operating mode is turned on by DIGSI when the user activates in commissioning mode functions such as setting of binary inputs setting of output relays setting of an nunciations DIGSI turns the hardware test mode off whe...

Page 181: ...n UnlockDT The interlocking of this flag with binary input Data Stop FNo 16 CU is gener ated via CFC The flag UnlockDT Unlock data transmission via BI has the following meaning A data transmission stop which has been initiated via binary input may only be reset again by binary input Relevant information On Off 5 7 4 Settings for the Central Unit 5 7 5 List of Information from the Central Unit Addr...

Page 182: ...UENCY 7899 BU can only be set with the bay unit running in stand alone mode The value entered in the central unit for the parameter FREQUENCY 5104 CU is not changed by this With the bay unit linked to the central unit the setting of this parameter is transmitted from the central unit to the bay units The local setting in the bay units is overwritten Note A device version with a rated frequency of ...

Page 183: ...he busbar protection is only transmitted to the circuit breaker of the faulted feeder if the feeder current exceeds the current threshold for TRIP re lease I TRIP XX13 CU Minimum duration of TRIP command The relays for the TRIP command and the transfer trip command are reset if after the time Tmin TRIP 6106 CU the feeder current drops below the threshold I BF XX18 CU or I BF EF XX19 CU Figure 5 37...

Page 184: ...ective measuring systems and thereby a possible false tripping is prevented That test current remains in the check zone measuring system and may lead to a pick up of the differential cur rent supervision of the check zone Therefore it is recommended to set the reaction on a pick up of the differential current supervision of the check zone to alarm only Additionally the binary inputs for the breake...

Page 185: ...rs maintenance must be selected for one coupler bay only To ensure a selective functioning of the protection the isolator status must not be changed during maintenance mode this is because the individual protection zones are managed on the basis of the frozen isolator replica The circuit breaker monitoring and the isolator status monitoring are closed A warning annunciation IsoProhib Maint FNo 104...

Page 186: ...e the internal CBF processing 5 9 6 Testing the Tripping Circuits and the Circuit Breakers You can test the tripping circuits and the circuit breakers under live conditions by initi ating a CB test trip from the bay unit The CB test live trip can be performed with DIGSI or directly from the bay unit operator panel The following conditions must be met The required test trip commands have been marsh...

Page 187: ...rmation message follows Trip Bl 03 FNo 177 1363 xx and as group alarms Device Trip G FNo 10445 Trip BBP G FNo 10449 and Trip 03 G FNo 177 1341 xx Trip Lx CZ FNo 10457 CU 10458 CU 10459 CU will be issued with every tripping command In this xx or 03 indi cates the bus zone The binary inputs of the active signals are monitored individually An alarm is generated in the event of an excess for more than...

Page 188: ... is released With setting blocked changes to the bay unit parameter Bay status XX12 CU locally from the bay units are blocked Attempts to take a bay unit locally out of service are rejected as NOT PERMITTED PROT TR BUS The parameter PROT TR BUS 5401 CU is used to activate and deactivate the se lective protection of a transfer busbar The basic setting is NO With setting released the protection of t...

Page 189: ...rent that is allowed to flow during the test must be less than this threshold Thus an unintentional tripping of a feeder in op eration can be prevented I TRIP The parameter I TRIP XX13 CU is used to set the threshold of the feeder current for the trip release The setting of the parameter depends on the lowest short circuit current to be expect ed A TRIP command will be performed selectively for ea...

Page 190: ... 0 25 I In Current threshold for BF EF 151A Maint Iso1 YES NO YES Maintenance for Isolator 1 156A Maint CB YES NO YES Maintenance for CB 5401 PROT TR BUS YES NO YES Selective protection for transfer busbar 5108A Test mode SK OFF ON OFF Test mode for module SK 5111A Language BU German English French Spanish Italian Russian English Language of bay units 6106 Tmin TRIP 0 01 32 00 s 0 15 s Minimum dur...

Page 191: ... fault characteristic active 10486 TripRelErr Timing error trip release 10487 TRIP Release TRIP Release for external command 176 1135 01 02 01 circuit breaker 02 177 1341 Trip 03 G Trip command for 03 group alarm 177 1360 Trip 01 Trip command for 03 177 1361 TripBIErr 03 Timing error ext Trip command 03 177 1362 noTripRel 03 No release of Trip command 03 177 1363 Trip BI 03 Trip command by BI for ...

Page 192: ...of Information from the Bay Unit FNo Alarm Comments 1156 CB test CB test start 1174 CB in Test Circuit breaker test in progress 1181 CB Test Trip Circuit breaker test General trip 7616 TRIP release Trip release w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 193: ...ts Chapter 5 3 5 3 page 126 Failure of the Bus Coupler Circuit Breaker Chapter 5 3 5 4 page 127 Circuit Breaker Not Ready Chapter 5 3 5 5 page 127 End Fault Protection Chapter 5 4 page 135 End Fault Protection in the Feeder Chapter 5 4 1 page 135 Protection with fault in the Dead Zone of the Bus Coupler Chapter 5 4 2 page 137 Protection General Chapter 5 9 page 167 Current Controlled TRIP Reset Ch...

Page 194: ...nts of the three phases IdL1 IdL2 IdL3 The stabilizing currents of the three phases IsL1 IsL2 IsL3 OPER 1st L OPER 2nd L OPER 3rd L OPER 4th L The parameters OPER 1st L 7121 BU OPER 2nd L 7123 BU OPER 3rd L 7125 BU and OPER 4th L 7127 BU are used to select the mode of display for the measured value in the 1st 2nd 3rd and 4th line of the stand by display in 4 line mode With setting PRIMARY the meas...

Page 195: ... in the 2nd line of the quiescent state indication in 4 line mode 7123 OPER 2nd L PRIMARY SECONDARY NORMALIZED SECONDARY Display of measured values in the 2nd line as primary or sec ondary percent values 7124 OPER 3rd L IL1 IL2 IL3 IE I DIFF L1 I DIFF L2 I DIFF L3 I RESTR L1 I RESTR L2 I RESTR L3 IL3 Display of measured values in the 3rd line of the quiescent state indication in 4 line mode 7125 O...

Page 196: ... transmitted in a format which is used by DIGSI V3 With setting ASCII the data are transmitted in ASCII format PC BAUDRATE The parameter PC BAUDRATE 7215 BU is used to select the rate at which data will be transmitted from the front port PC port to the device connected to it With setting 1200 2400 4800 9600 or 19200 BAUD the data will be transmitted at the selected rate PC PARITY The parameter PC ...

Page 197: ...ce with VDEW ZVEI 7211 PC INTERF DIGSI V3 ASCII DIGSI V3 Data format 7215 PC BAUDRATE 1200 Baud 2400 Baud 4800 Baud 9600 Baud 19200 Baud 9600 Baud Transmission rate for PC poirt 7216 PC PARITY DIGSI V3 No parity 2 stopbits No parity 1 stopbit DIGSI V3 Parity of transmission telegrams 7233 SYS SUBV T 1 600 s 120 s Supervision time for system in terface w w w E l e c t r i c a l P a r t M a n u a l ...

Page 198: ...of a binary input or by an input at the integrated keypad or through the PC port 5 13 2 Setting Notes INITIATION The parameter INITIATION 7402 BU is used to set the reference instance and the storage criterion for fault recording With setting STORAGE BY FD the storage criterion is defined to be the fault detection by the device The reference instant for fault recording is the fault detection by th...

Page 199: ...t is energized It cannot however run for longer than the maximum storage time To set the parameter to infinite incre ment the value for this parameter with the arrow keys until the symbol appears T KEYBOARD The parameter T KEYBOARD 7432 BU is used to set the storage time when fault re cording is initiated from the membrane keyboard on the operator panel 5 13 3 Settings of the Bay Unit Addr Paramet...

Page 200: ...ed for the phase current overcurrent protection Chapter 5 16 1 page 188 With setting INVERSE TIME an inverse time characteristic will be used for the phase current overcurrent protection Chapter 5 16 1 page 188 CHARAC E The parameter CHARAC E 7815 BU is used to set the characteristic for the earth currents of the overcurrent protection With setting DEFINITE TIME a definite time characteristic will...

Page 201: ...enance in service Bay status 5104 FREQUENCY 50 Hz 60 Hz 50 Hz Nominal frequency Addr Setting Title Setting Options Default Settings Comments 7812 CHARAC PH Definite time INVERSE TIME Definite time O C protection characteristic for phase currents 7815 CHARAC E DEFINITE TIME INVERSE TIME DEFINITE TIME O C protection characteristic for the earth current 7899 FREQUENCY 50 Hz 60 Hz 50 Hz Rated system f...

Page 202: ...te The parameter CT STARPNT 1101 BU can only be set with the bay unit running in stand alone mode As long as there is a connection with the central unit the parameters 1101 BU 1105 BU 1141 BU are managed and set by the CU and are therefore hidden in DIGSI and in the LCD The parameter settings in the central unit are not affected by this With the bay unit linked to the central unit the setting of t...

Page 203: ...ed by this With the bay unit linked to the central unit the setting of this parameter is transmitted from the central unit to the bay units The local setting in the bay units is overwritten Addr Setting Title Setting Options Default Settings Comments 5104 FREQUENCY 50 Hz 60 Hz 50 Hz Nominal frequency 6106 Tmin TRIP 0 01 32 00 sec 0 15 sec Minimum duration of TRIP com mand Addr Setting Title Settin...

Page 204: ...re three types according to IEC 255 3 Figure 9 1 page 320 Normal inverse acc to IEC 255 3 type A Very inverse acc to IEC 255 3 type B Extremely inverse acc to IEC 255 3 type C The characteristic is set with the parameters CHARAC PH 7812 BU for the overcur rent stage of the phase currents and CHARAC E 7815 BU for the overcurrent stage of the earth current The characteristic of the inverse time O C ...

Page 205: ...rotection in the Bay Unit 189 7SS52 V4 Manual C53000 G1176 C182 3 Figure 5 40 O C protection for phase currents Figure 5 41 O C protection for the earth current w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 206: ...e basis of the flowing fault current and depends on the selected trip time multiplier The time multiplier is set with the parameters TIp 1215 BU or TIEp 1515 BU respectively If the thresholds for the high set stage of the phase or earth current are exceeded a TRIP command is always issued as soon as the current independent trip time has elapsed This happens regardless of the tripping characteristi...

Page 207: ... 5 14 page 184 For the set ting of the overcurrent stage I the most relevant factor to be considered is the maxi mum operating current that can occur A pick up caused by overload must be exclud ed since in this mode the device operates as fault protection with correspondingly short tripping times and not as overload protection If the I stage is not required the time TI 1213 BU is set to infinite T...

Page 208: ...ents will be overridden if the circuit breaker is manually closed With setting I UNDELAYED the delay time set with the parameter TI 1203 BU will be disregarded With setting I Ip UNDELAYED the delay time set with the parameter TI 1213 BU will be disregarded With setting INEFFECTIVE the delay times set with the parameters TI 1203 BU or TI 1213 BU respectively are not disregarded O C EARTH The parame...

Page 209: ...hat can occur If the IE stage for earth faults is not to be active at all the delay time TIE 1513 BU can be set to infinite The parameter IE 1512 BU is used to the threshold for the earth current in the overcurrent stage This parameter is only displayed if the parameter CHARAC E 7815 BU is set to DEF INITE TIME TIE The parameter TIE 1513 BU is used to set the trip time delay for tripping of the ov...

Page 210: ...ameter CHARAC E 7815 BU is set to IN VERSE TIME With setting FUNDAMENTAL the fundamental wave of the currents will be evaluated With setting TRUE RMS the r m s value of the currents will be evaluated MAN CLOSE The parameter MAN CLOSE 1521 BU is used to set whether the trip time delay for the overcurrent or high set current stage for the earth current will be overridden if the circuit breaker is ma...

Page 211: ...ime multiplier for phase cur rents 1216 RMS FORMAT FUNDAMENTAL TRUE RMS FUNDAMENTAL RMS format for inverse time O C protection 1221 MAN CLOSE I UNDELAYED I Ip UNDELAYED INEFFECTIVE I UNDELAYED Overcurrent stage valid for phase currents when the circuit breaker is manually closed 1501 O C EARTH ON OFF ON O C protection for the earth cur rent 1502 IE 0 05 25 00 IN 0 50 IN Pick up value of the earth ...

Page 212: ...DEFINITE TIME Characteristic O C protection earth Addr Setting Title Setting Options Default Settings Comments FNo Alarm Comments 1721 I block Overcurrent protection block stage I 1722 I block Overcurrent protection block stage I 1723 Ip block Overcurrent protection block stage Ip 1724 IE block Overcurrent protection block stage IE 1725 IE block Overcurrent protection block stage IE 1726 IEp block...

Page 213: ...BU are transferred to the central unit The associated input annunciation at the central unit is BU INx 00 FNo 176 1141 BU FNo 176 1143 BU FNo 176 1145 BU FNo 176 1147 BU Output Annunciation Central Unit In the central unit you can send 4 output annunciations OUT1 00 FNo 176 1142 BU FNo 176 1144 BU FNo 176 1146 BU FNo 176 1148 BU to each bay unit to generate the Annunciation1 4 FNo 7696 BU 7697 BU ...

Page 214: ...connect the user defined logic in such a way that the output annuciation is fed back to the input annunciation again closed loop In such a case it may become necessary to interrupt the connection to the central unit to correct the parameterization again w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 215: ... and 4 ANN1Inp No ANN2Inp No ANN3Inp No ANN4Inp No Use parameters ANN1Inp No to ANN4Inp No 2831 BU 2832 BU 2833 BU 2834 BU to set any annunciation numbers see Appendix A 10 page 383 that can be transferred to the central unit ANN1Fct No ANN2Fct No ANN3Fct No ANN4Fct No Use parameters ANN1Fct No 2821 BU ANN2Fct No 2822 BU ANN3Fct No 2823 BU and ANN4Fct No 2824 BU to enter the annunciation number of...

Page 216: ...essing of annunciation 2 by central unit 2813 ANNUN3byCU NO YES NO Processing of annunciation 3by central unit 2814 ANNUN4byCU NO YES NO Processing of annunciation 4 by central unit 2821 ANN1Fct No 0 9999 0 Binary input annunciation Fct no by annunc 1 2822 ANN2Fct No 0 9999 0 Binary input annunciation Fct no by annunc 2 2823 ANN3Fct No 0 9999 0 Binary input annunciation Fct no by annunc 3 2824 ANN...

Page 217: ... annunciation 1 12 Annunc 2 User defined annunciation 2 13 Annunc 3 User defined annunciation 3 14 Annunc 4 User defined annunciation 4 7696 Annunc 1 User defined annunciation 1 7697 Annunc 2 User defined annunciation 2 7698 Annunc 3 User defined annunciation 3 7699 Annunc 4 User defined annunciation 4 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 218: ... time has elapsed no TRIP com mand is issued The pickup is cleared if the current drops below the threshold If the TRIP command issued by the breaker failure protection does not result in disconnec tion of a system fault and if the bay unit is linked with the central unit the main CBF protection function is initiated after the delay time T BF mP XX21 CU has elapsed This allows to issue a transfer ...

Page 219: ...ection in the Bay Unit 203 7SS52 V4 Manual C53000 G1176 C182 3 Figure 5 43 Blocking mechanism for the backup breaker failure protection and backup time overcurrent protection w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 220: ...76 C182 3 Figure 5 44 Monitoring of the Starting Binary Inputs of the Backup Protection BFP 1 pole Figure 5 45 Monitoring of the Starting Binary Inputs of the Backup Protection BFP 3 pole w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 221: ...tection in the Bay Unit 205 7SS52 V4 Manual C53000 G1176 C182 3 Figure 5 46 CBF protection function of the backup protection Continuation for 1 and 2 see Figure 5 22 page 121 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 222: ...aningful way Siemens therefore recommends to match the value in the bay unit to its counterpart in the central unit B U CBF T Use parameter B U CBF T 3912 BU to set the time delay for the feeder selective TRIP command TRIP repetition of the backup breaker failure protection of the bay unit In the case of a circuit breaker fault the TRIP repetition time delay of the backup CBF is zero The two time ...

Page 223: ...ault 0 00 10 00 s 0 10 s Time delay BF after CB fault FNo Alarm Comments 10490 Block BF of BU Blocking back up breaker fail prot BU 10491 Block BF of BU Blocking back up breaker fail prot BU 10492 Blkd BF of BU Back up breaker fail prot of BU blocked 10493 Block O C BU Blocking O C protection of BU 10494 Block O C BU Blocking O C protection of BU 10495 Blkd O C BU O C protection of BU blocked Addr...

Page 224: ...ive 1455 b u CBF flt Back up breaker fail protect fault det 1471 b u CBF Trip Trip by back up breaker failure prot 1704 O C Ph block Block overcurrent protection phases 1714 O C E block Block overcurrent protection earth 1752 O C Ph block Overcurrent prot phase is blocked 7615 CBF release Circuit breaker failure release 7619 CB not ready Circuit breaker not ready 7625 b u CBF L1 Back up breaker fa...

Page 225: ...lues and fault data influence single functions and annunciations As a prerequisite the plant must be configured as described in Chapter 4 page 45 and the input and output functions must be allocated Please note that the examples given are held in a general context and may deviate in word and in detail from the devices you are using It is also possible that not all func tions are available dependin...

Page 226: ...le 6 1 Overview of the operating options and control options Operating option DIGSI logically to CU opera tor panel BU opera tor panel Chapter Reading out information Operational events Fault events General interrogation Spontaneous annunciation Statistical counters CU BU CU BU CU BU CU BU BU X X X X X 6 2 1 1 page 214 6 2 1 2 page 216 6 2 1 4 page 218 6 2 1 5 page 218 6 2 1 6 page 219 Reading out...

Page 227: ...lant visualization CU 6 6 page 249 Current transformer polarity reversal BU X 7 5 1 page 287 Table 6 1 Overview of the operating options and control options Operating option DIGSI logically to CU opera tor panel BU opera tor panel Chapter w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 228: ...nunciations of individual bay units are displayed via DIGSI In this case the PC is linked to the central unit and communicates directly with the bay unit or the PC is connected to a bay unit The annunciations are forwarded to a control center if available via the serial sys tem port of the central unit Annunciations are displayed via the display of the central unit or of the bay units Annunciation...

Page 229: ...n selection shows the submenu for Annunciation and Measurement Double click the entry Annunciation The Select annunciation window shows the individual event buffers The individual event buffers will be described in more detail in the following subsections Light emitting di odes on the front panel The green LED labelled RUN lights permanently during normal operation The red LED labelled ERROR indic...

Page 230: ...hed the oldest event will be erased The appendix contains a tabular list with all available operational events and their ex planation Only the relevant annunciation will be displayed in the concrete situation It is also indicated whether the annunciation is only coming C for events or whether it is coming and going C G for states from the PC with DIGSI To read out operational events of the central...

Page 231: ... window Select annunciations Figure 6 4 page 215 Double click Operational annunciations The corresponding contents of the oper ational annunciation is displayed in another window Figure 6 4 Select annunciation window in DIGSI of the bay unit Note Operational annunciations fault indications and measured values can also be re trieved via the operator panel of the central unit If you want to know mor...

Page 232: ...r system are indicated by Power System fault and by the fault number and are stored in the fault event buffer The oscillographic record Chapter 6 2 3 page 221 contains detailed information on the behaviour of the power system fault You can retrieve the annunciations of the last 8 power system faults of the central unit and of the last 8 power system faults of the bay unit A power system fault is t...

Page 233: ...nciations window Double click Fault annunciations The window with the overview of the fault an nunciations appears Double click an entry in the overview You can also click an entry and then Show The corresponding contents of the fault event is displayed on another window If the bay unit is operated without any central unit the first fault has the number 900 6 2 1 3 Alarm List When a bay unit fails...

Page 234: ...ia tion subject to general interrogation is displayed on another window 6 2 1 5 Spontaneous Annunciation You can use Spontaneous Annunciations to view the log file of incoming current an nunciations from the PC with DIGSI To read out spontaneous annunciations of the central unit PC linked to central unit proceed as follows Click Spontaneous annunciation The right section of the window shows date a...

Page 235: ... the PC or they can be transmitted to a central station via the system port No password is required for retrieving the measured values After a few seconds the values will be updated cyclically The possible measured value representation as primary quantities or referenced to the nominal value are stated in Table 6 2 page 219 Note Statistics annunciations are only available for the bay units Table 6...

Page 236: ...If a value is indeterminate e g fN if no current is flowing 3 dashes are shown 3 asterisks are displayed in the case of a fault in the bay unit Click the desired measurement group e g Operational values primary The next subgroup is shown Click the desired subgroup e g Bay currents primary values Figure 6 1 page 213 Double click an entry in the list view in the right section of the window The windo...

Page 237: ...ger time and the post fault time of the fault recording must be set according to the Chapters 5 6 page 160 and 5 13 page 182 from the PC with DIGSI To read out fault data centrally PC linked to central unit proceed as follows Click Oscillographic Records in the navigation window The subdirectory of the Oscillographic Records now shows the item Oscillographic Fault Records in the navigation window ...

Page 238: ...IGSI the following fault records will not appear in the list view If a local fault record is triggered via the backup protection of a bay unit or by the trip of an external breaker failure protection in a bay unit it will depend on the setting of the parameter fault rec mode 6401A CU where additional fault records are created in the system Chapter 5 6 2 page 161 A system event buffer is always cre...

Page 239: ... bay units in a window The SIGRA 4 system program helps you analyze fault events in the power system SIGRA 4 processes the data recorded during a fault and presents them graphically From the recorded measured values it calculates additional measured quantities such as time signals or r m s values which help you evaluate the fault record In order to be able to analyze the data on a local PC later o...

Page 240: ... unit proceed as follows Open the corresponding bay unit in the DIGSI Manager Click Fault values in the navigation window Double click Fault recording The Select fault window opens Figure 6 14 page 224 Click SIGRA The fault data are retrieved and saved SIGRA opens and the fault data are loaded see also the DIGSI Manual Operation Subsection 8 3 3 Figure 6 14 Select fault window in DIGSI w w w E l e...

Page 241: ...r via the tripping of the overcurrent protection and it ends when they are cleared Not every fault event triggers a fault record see also Chapter 5 13 page 182 After starting the fault recording the data are stored in a range from max 500 ms be fore the TRIP command to max 500 ms after it When the memory is full each new fault event overwrites the oldest fault event stored in the device You can al...

Page 242: ...its are not activated This is useful e g during the commissioning phase Blocking the TRIP command entire protection The blocking of the TRIP command for the entire protection is blocked with the tagging TRIP blocking FNo 10441 CU or via a binary input TRIP blocking FNo 10440 CU The blocking is indicated by the annunciation TRIP blocked FNo 10442 CU Note You can also trigger the fault recording via...

Page 243: ... CU or TRIP BZ blkd G FNo 10497 CU The annunciation IsoProhib Maint FNo 10471 CU is output The blocking via the bay unit is done via Blk BB TRIP FNo 7629 BU or BLOCKAGE ON FNo 4201 BU is indicated by the annunciation BB TRIP block FNo 7657 BU The system will always be reset when the blocking is deactivated e g at the bay unit with BLOCKAGE OFF FNo 4202 BU in order to completely terminate the proce...

Page 244: ...n overview of these function Figure 6 16 Logic for the blocking of the TRIP command BF CU command system port DIGSI locally Pr BU test function DIGSI locally K ON G OFF the BI TRIP release of the BU is only observed if it has been configured w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 245: ... when you change the tagging status Click Yes to apply the command The blocking of the TRIP command can be pro tected by the password for switching selecting updating If you have activated this password you will be prompted to enter it before the command is executed since a connection was first established A dialog box opens for this purpose Enter the correct password in the box named Password and...

Page 246: ...ing is indicated by the annunciation TRIP blocked FNo 10432 CU Blocking Breaker Failure Protection busbar selectively The busbar selective blocking of the breaker failure protection can be done at the cen tral unit for the connected bay units as well as at the bay units directly via DIGSI binary input or local operation The blocking via the central unit is done via BlkBF BB 00 FNo 176 1349 CU or v...

Page 247: ...re 6 18 Logic for the blocking of the external breaker failure protection tripping BF CU command system port DIGSI locally Pr BU test function DIGSI locally K ON G OFF The enable input is only observed if the operating mode BF 2 channel has been configured param XX14 BF BI mode w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 248: ...ill receive an error message When the password is cor rect the command will be executed 6 3 2 3 Blocking of Individual Busbar Sections Individual busbar sections can be blocked for special conditions or for test purposes To do so binary inputs of the central unit have to be configured Blk 03 FNo 177 1334 CU The blocking is done for every three phases and is retained beyond a device restart The dif...

Page 249: ...of the annunciations is displayed Right click in the list view to open the context menu and click Save The annuncia tions are saved Proceed analogously to save further entries You can also save entire annunciation groups For this purpose select the desired annunciation group and click File Save on the DIGSI menu bar Next you see a security prompt demanding whether to save all process data annuncia...

Page 250: ...lick the desired annunciation group in the navigation window Click Delete in the context menu Next a security prompt takes place Click Yes to delete the data To delete annunciations of a single bay unit PC linked to central unit or bay unit pro ceed as follows Open the corresponding bay unit in the DIGSI Manager Click Control in the navigation window and select the entry General Device Set tings i...

Page 251: ...es must be met The necessary test commands CB Test L1 to CB Test L3 7636 BU to 7638 BU have been configured to the command relays The feeder current must not exceed the set limit I MAN TRIP 6316 CU As is shown in Figure 6 21 page 236 the circuit breaker test of the bay unit can be triggered by the following actions by applying the F2 function key 3 phase via binary input CB Test FNo 1156 BU 3 phas...

Page 252: ...llows Open the corresponding bay unit in DIGSI Manager Click Test in the navigation window and select the entry Test in the function selec tion The Tests window opens Figure 6 22 Tests window in DIGSI Click the entry CIRCUIT BREAKER TEST TRIP COMMAND and click Run The window 4400 CIRCUIT BREAKER TEST TRIP COMMAND opens Figure 6 23 Window 4400 CIRCUIT BREAKER TEST TRIP COMMAND in DIGSI w w w E l e ...

Page 253: ... of the differential current supervision at the central unit PC linked to central unit proceed as follows Click Control in the navigation window see Figure 6 24 page 237 Double click Rest blocking of diff current superv in the function selection The resetting of the blocking can be protected by the password for the parameter set If you have activated this password you will be prompted to enter it ...

Page 254: ...the box named Password and then click OK If the password is wrong you will receive an error message When the password is cor rect the blocking will be reset 6 3 6 Trigger Initial Start and Restart In case of an initial start will be cleared fault records fault annuciation buffer operational event buffer alarm list buffer The device settings are contained in the parameter set and these are not chan...

Page 255: ...dy decided in Chapter 4 7 2 page 85 on date and time management whether to set the internal clock and which synchronization source to use Usually a plausible time is already displayed during the device start The time is either set auto matically by the connected synchronization source or manually Until the synchroniza tion takes place and sets a valid time different time displays may appear on the...

Page 256: ...ult indication after Remedy If you are using external synchronization check its function and correct con nection Display type no 3 is shown if the real time clock has delivered a valid time value but the time has not been set manually nor synchronized afterwards Remedy Set date and time manually or wait until the cyclic synchronization takes ef fect Display type no 4 indicates that the clock is sy...

Page 257: ...e edge has been received after the time was changed In the other operating modes manual setting is only accepted if the synchronization is currently considered faulty i e the identifier ST is set in the clock status This is to avoid time steps IRIG B is special since it allows the year to be changed at any time This is accompanied by the annunciations Clock SyncError on and Clock SyncError off res...

Page 258: ... to change the time offset or the tolerance time of the clock signal in the event of a fault click Settings Figure 6 27 page 242 The setting groups are shown in the function selection Figure 6 27 Selecting the time synchronization function Double click Time Synchronization The Time Synchronization Time Format dia log box opens Figure 6 28 page 243 Change the time delay of the annunciation under th...

Page 259: ...6 28 Example for Time Synchronization Time Format dialog box in DIGSI Note Date and time can also be set via the operator panel of the central unit If you want to know more on this topic please read the System Description 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 260: ...e func tion selection Double click Bay units in the function selection The Bay units window opens Fig ure 6 29 page 245 Double click the desired bay unit The window Bay Unit BU 01 opens Figure 6 30 page 245 You can also click Customize To put the bay for the busbar protection out of service click the tab General and select out of service from the drop down list in the right column To put the bay f...

Page 261: ... PC linked to central unit or to bay unit proceed as follows Open the corresponding bay unit in DIGSI Manager Click Test in the navigation window Double click Test in the function selection The Tests window opens Figure 6 22 page 236 Click the entry COMMUNICATION WITH CENTRAL UNIT and then click Run The window Test 4500 COMMUNICATION WITH CENTRAL UNIT opens Figure 6 31 page 246 w w w E l e c t r i...

Page 262: ...n service and click Run Next a password prompt takes place Enter the correct password in the box named Password and then click OK If the password is wrong you will receive an error message When the password is cor rect the bay will be put out of service Note A warm restart normally takes place after the reconnection of a branch During the shutdown the warm restart is omitted as long as the connect...

Page 263: ...pens Fig ure 6 29 page 245 Double click the desired bay unit The window Bay Unit BU01 opens Figure 6 30 page 245 You can also click Customize To put the bay unit to maintenance mode click the tab General and select in main tenance from the drop down list in the right column Click DIGSI Device to transfer the parameter into the device To put a single bay unit into maintenance mode PC linked to cent...

Page 264: ... C182 3 Enter the correct password in the box named Password and then click OK If the password is wrong you will receive an error message When the password is cor rect the bay will be put into maintenance w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 265: ...t to busbars DIGSI at the CU To use DIGSI for starting the Plant Visualization via a PC connected to the central unit proceed as follows Open the central unit in the DIGSI Manager in on line mode Click Monitoring in the navigation window Double click Substation data in the function selection The DIGSI plant visualiza tion opens Alternatively you can right click Substation data and then select Open...

Page 266: ...cuit breakers colours of busbars lines and isolator switches static object if they are linked to lines or busbars The following object are not subject to a change in colour text measured value boxes circuit breakers current transformers Display of the cur rent switch states The current status of isolator switches and circuit breakers is represented by the cor responding circuit symbols as shown in...

Page 267: ...e Note The percentages for the differential and restraint currents are referred to the normalized current Chapter 4 3 7 page 60 of the base CT The percentages for the feeder currents refer to the rated transformer current of the corresponding feeder Note In the fault record the current values are displayed from the protection s point of view i e after the algorithmic processing for an easier analy...

Page 268: ...r Statuses In the plant visualization special operating statuses of a feeder are marked by a fault LED This applies to planned statuses such as Maintenance or Feeder out of Service or disturbances such as Intermediate Position of an Isolator or the interruption of the connection between central unit and bay unit The occurrence of such a disturbance is marked by an illuminated LED icon located at t...

Page 269: ...usbar is indicated by a certain colour This means that the line and the switchgear symbols are in the same colour as the corresponding busbar When a sectionalizing isolator or sectionalizer fork is closed the busbar section with the lower number BB has a higher priority than the busbar section with a higher number TB12 preference The busbar section with the higher number takes over the colour of t...

Page 270: ...able to analyze the current isolator and circuit breaker positions at a later point of time For this purpose these data are saved and can be selected in DIGSI under Fault Indications and displayed by double clicking on the fault number Figure 6 37 Switch Positions for a Case of Fault Displayed Graphically w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 271: ... you how to install and connect the central unit and the bay units of the distributed busbar and beaker failure protection SIPROTEC 7SS52 V4 in addition this chapter tells you which tests with secondary values should be made in order to put the system into operation with primary values 7 1 Installation and Commissioning 256 7 2 Checking the Connections 261 7 3 Commissioning 262 7 4 Checks With Sec...

Page 272: ...onnections on the back of the central unit are marked Figure 2 6 page 22 Removal of Modules In general it is not necessary to remove the ZPS modules To adjust the pickup voltage of the binary inputs of the EAZ and CPU modules proceed once as follows Loosen the five screws of the front panel and swing the panel down Depending on the module it will be necessary to loosen either the threaded rail one...

Page 273: ...nit Pay attention to the identification of the modular terminal blocks Figure 2 8 page 24 Connect the bay units to the central unit by optical fibres For this use optical fibres with prefabricated ST plugs Provide a suitable strain relief Panel surface mounting Mount the bay unit 7SS523 with 4 screws each to the panel for mechanical dimen sions see Chapter 9 3 2 page 331 Connect a solid low ohmic ...

Page 274: ...ts the CB aux must be connected in parallel to both bay units To provide this functionality the switching status information CB open CB OFF is sufficient Unwanted tripping due to incorrect switching status feed back signalling is prevented by the check zone For increased security the option to also check the plau sibility of the switching state with the feed back information CB closed CB ON via bi...

Page 275: ...ng bay unit can switch the maintenance mode for the configured isolator on or off Individual switchgear isolators circuit breakers can be excluded from the mainte nance mode by means of a setting parameter Bay out of service For the function Bay out of service the binary inputs of the two bay units are com bined by a logical OR i e the connection to one binary input is sufficient 7 1 3 2 2 Bay Bus...

Page 276: ...ions according to the configuration via the binary inputs of the single bay units Connect the TRIP command and transfer trip contacts of both bay units in parallel In this case also connect further binary input functions e g CBF initiation CBF re lease TRIP release in parallel Figure 7 1 Connection of the current inputs of the bay units in bus couplers with only one cur rent transformer w w w E l ...

Page 277: ... switched on Check the control wiring to and leading from other devices Check the signal circuits Check the auxiliary voltage at the cubicle terminals Check its polarity and the po larity of the digital input connection Check magnitude of the supply voltage Check whether the binary inputs are set to the correct voltages When the connections are connected correctly switch on the miniature circuit b...

Page 278: ...e Hazardous voltages can exist in the power supply and at the connections to current transformers voltage transformers and test circuits Hazardous voltages can be present in the device even after the power supply volt age has been removed i e capacitors can still be charged After removing voltage from the power supply wait a minimum of 10 seconds be fore re energizing the power supply This wait al...

Page 279: ...units and the central unit see Chapter 7 3 3 page 268 The check is made in con nection with the feeder protection devices if possible Check the functions circuit breaker failure protection releases and additional functions With the circuit breaker check carry out a function control of the TRIP command and transfer trip contacts of the bay units see Chapter 6 3 4 page 235 With the circuit breaker c...

Page 280: ...rk used for se lection and communication After the link has been successfully established through the data transmission network the browser is started and the TCP IP address of the protection device entered in it The server address of the device which is its homep age address is transmitted to the browser and displayed as an HTML page This TCP IP address is set at the front and service interface u...

Page 281: ...ay The above figure of the device operation view shows a device with its control keyboard and display elements display LEDs inscriptions The device can be operated with the keys shown in the display in the same way as with the sealed keypad on the device w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 282: ...he modules of the central unit In addition the HDLC status HDLC High Level Data Link Control of the internal serial interfaces can be called Figure 7 4 Example for the display of the HDLC status of the internal serial interfaces A description of the values 0x00h shown above can be displayed by clicking on Legend w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 283: ... C182 3 Figure 7 5 Example for the display of the firmware version for the modules of the central unit Figure 7 6 Example for the display of the firmware version for the modules of the bay units w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 284: ...ivided into three groups BI for binary inputs BO for binary outputs and LED for LEDs On the left of each group is an accordingly labelled panel By dou ble clicking these panels you can show or hide the individual information of the select ed group In the column Actual the current status of the particular hardware component is dis played by symbols The actual states of the binary inputs and outputs...

Page 285: ...tput re lay of the central unit and the system without having to create the alarm allocated to it As soon as you have initiated the first state change for any output relay all output relays are disconnected from the functionality of the device and can only be operated by the hardware test function This means that e g a TRIP command coming from a protection function or a control command from the op...

Page 286: ...he LED in the same way like the other in output components As soon as you have initiated the first state change for any LED all LEDs are disconnected from the functionality of the device and can only be operated by the hardware test function This means e g that no LED is illuminated anymore by a protection function or by pressing the LED reset button Updating the dis play During the opening of the...

Page 287: ...on e g 4801 and one for the deactivation e g 4802 Entering the password F3F1F3F1F3F1 is required for this function Operator address The binary input states physical states are displayed by selecting the corresponding operator address and its confirmation The states of the other binary inputs are stated in the operator tree under the ad dresses 4703 up to 4710 7SS525 and 4720 7SS523 respectively 47...

Page 288: ...operation via the membrane keyboard a once entered password is memorized until the address block is left In the case of an op eration via DIGSI the password has to be entered again for each control action re lay on or off 4800 CONTROL OF RELAYS Input sequence for activating trip relay 1 4801 TRIP RELAY1 SWITCH ON E key ENTER PASSWORD Entry of the password Password F3 F1 F3 F1 F3 F1 4801 TRIP RELAY...

Page 289: ... opened see Figure 7 8 page 273 Structure of the dialog box In the column Indication the display texts of all indications are displayed which were allocated to the system port in the matrix In the column Setpoint status you deter mine a value for the indications that shall be tested Depending on each indication type for this several input boxes are offered e g ON OFF By clicking on one of the but ...

Page 290: ...ll down menu under Setpoint status Make sure that the switching operations which may be caused by the tests can be made without any dangers Click in the function to be tested send and check whether the corresponding infor mation reaches the control center and possibly shows the expected effect Finishing the process To finish the test of the system port click Close The dialog box is closed the devi...

Page 291: ...g parameter OutEn BU TEST 5112A CU you can enable the command output during the test operation via relay For safety reasons the pre setting No i e the relay output is locked This ensures that no accidental triggering may occur during the test mode The parameter OutEn BU TEST 5112A CU is only effective during the test mode The following isolator status indications can be generated and transmitted t...

Page 292: ...Installation and Commissioning 276 7SS52 V4 Manual C53000 G1176 C182 3 Figure 7 10 Simulation w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 293: ...ed on the annunciations sent by a SIPROTEC4 device to the control center are marked with an additional test bit so that they can be recognized as not being annunciations of real faults Furthermore it can be determined by activating the Transmission block that no annunciations at all are transmitted via the system port during a test mode To switch on the test mode click in the menu bar DIGSI Device...

Page 294: ...thor oughly familiar with all warnings and safety notices in this instruction manual as well as with the applicable safety steps safety regulations and precautionary measures The main points to observe are The device is to be earthed to the substation earth before any other connections are made Hazardous voltages can exist in the power supply and at the connections to current transformers voltage ...

Page 295: ...ossibly by a feeder position simulation 7 4 2 1 busbar selective Protection To check the busbar selective protection the check zone must be set more sensitive than the bus zone selective protection By this the release of the check zone is grant ed before the release of the busbar selective protection Example You can set the Trip characteristic for the busbar selective protection shall be set with ...

Page 296: ...eck the connection If that is correct reverse the polarity in a feeder If the current I2 is zero then increase the current I1 for so long until a TRIP com mand is output The current in the feeder must correspond to the differential current threshold set in the parameter Id BZ 6102 CU Apply a constant current I1 which is smaller than the set differential current thresh old to the feeder 1 from the ...

Page 297: ... mes sage Trip L1 CZ FNo 10457 to 10459 CU as a phase selection This enables a check which is independent of the selected bus protection Example You want to set the trip characteristic for the check zone with the parameters for the differential current threshold Id CZ 6104 CU 2 0 Ino and the stabilizing factor STAB FAC CZ 6103 CU 0 8 You want to set the busbar selective protection the parameters I...

Page 298: ...ent of the bus zone must be nearly zero and the stabilization current must be the double of the supply current If the differential current is not zero reverse the polarity in a feeder If the current I1 is zero increase the current I2 until the annunciation Trip L1 CZ to Trip L3 CZ FNo 10457 to 10459 CU is output by the measuring system which is assigned to bay 3 The current I2 must correspond to t...

Page 299: ...r the con cerned bays to 0 If the parameter DIF SUP mode BZ 6310 CU is set to block carry out the fol lowing 3 steps Connect the bays 1 and 2 to different bus zones Increase the current I1 in feeder 1 slowly until the annunciation of the differential current supervision signals that it has picked up The current must correspond to the pickup threshold set in parameter Id SUPERV BZ 6308 CU Now the b...

Page 300: ...4 3 3 page 284 Checking the blocking The reaction of the protection when the differential current supervision of the check zone picks up can be set with the parameter DIF SUP mode CZ 6311 CU to blocking or to only indicate without protective blocking Connect the bays 1 and 2 to the same bus zone Increase the current in feeder 1 slowly until the supervision of the check zone picks up Apply to feede...

Page 301: ...TRIP XX13 CU for feeder 1 to 2 0 I In and for the feeder 2 to 0 0 I In Set the isolators so that bay 1 and 2 are connected to the same bus zone Increase the current in feeder 1 slowly with the test equipment At 1 Ino bay unit 2 must output a TRIP command because the overcurrent threshold for this feeder is set to 0 0 I In Bay unit 1 must output a TRIP command at 2 IN 7 4 5 Breaker Failure Protecti...

Page 302: ...and the stabilizing current must be twice the supply current Slowly increase the current in feeder 2 until the protection trips The differential current must then be I1 I2 and the stabilizing current must be I1 I2 The stabilizing factor must be the ratio of differential current to stabilizing current k I1 I2 I1 I2 7 4 5 2 Delay Time at Operating Mode Unbalancing and I Query Test setup The test set...

Page 303: ...e on the left By this the transformer polarity can be checked locally at the bay units Put one feeder into service F1 Read out the differential and stabilizing currents with DIGSI Plant Visualization or the measured value window with DIGSI The result corresponds to the product of feeder current and normalizing factor CT transforma tion ratio Otherwise you have to check whether the CT transformatio...

Page 304: ... and the earth current are transmitted to the central unit with inverted signs The annunciations TF RevPol 00 FNo 176 1195 CU for the corresponding bay unit and the group annunciation TF RevPol M FNo 10451 CU are reported as ON in the central unit and in the bay unit In the bay unit Fail MV Offs FNo 7652 BU is reported as ON The inversion of the currents is done until the process is undone again T...

Page 305: ...n engineers The chapter tells you how to analyze malfunctions of the device and describes the maintenance and repair procedures that are required to ensure the functioning of the SIPROTEC 7SS52 V4 protection system 8 1 Maintenance 290 8 2 Fault Analysis 292 8 3 Troubleshooting 299 8 4 Repair 302 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 306: ... danger for personnel and that the tests do not influence station components which are in service Warning Hazardous voltages are present in this electrical equipment during operation Severe personal injury or property damage can result if the device is not handled properly Only qualified personnel shall work on and around this equipment after becoming thoroughly familiar with all warnings and safe...

Page 307: ...h the function key F1 Check the measured values and annunciations of the bay unit Check the trip circuits of each bay unit with the ancillary function Circuit breaker test Chapter 6 3 4 page 235 Check the function of the binary inputs in the bay units and the central unit To do so simulate both states of the binary inputs The reaction of the protection to the selected input signal can be analysed ...

Page 308: ...oltage supply module failure Failures in one of the connected bay units interruption of the power supply defective measuring circuit module failure Interruption of the communication link to one of the bay units defective transmission or reception modules interrupted FO link increased number of transmission errors The protection system provides the following diagnostic information to support the us...

Page 309: ... modules are correctly fitted and locked the fuses in the power supply section of the central unit module SV or the bay unit module SAF or SVW have not blown You will find an explanation of the LED indication of the power supply module in the central unit in Chapter 8 2 3 page 293 8 2 3 Checking the LEDs on the Modules The processor modules ZPS SBK ZPS BSZ ZPS SK in the central unit and the power ...

Page 310: ... Table 8 1 LEDs of the ZPS SBK module LEDs Status RED H1r GREEN H1g YELLOW1 H2 YELLOW2 H3 YELLOW3 H4 o Operational status o Failure status diagnosis by means of fault buffer required o bright dark dim flashing Table 8 2 LEDs of the ZPS BSZ module LEDs Status RED H1r GREEN H1g YELLOW1 H2 YELLOW2 H3 YELLOW3 H4 o Operational status o Failure status o o Start up not completed successfully diagnosis by...

Page 311: ...ble If the LED indication fails completely check the auxiliary voltage supply Chapter 8 2 2 page 293 replace the fine wire fuse Chapter 8 4 2 page 306 8 2 4 Analysis of Internal Communication Failures The following components of the protection participate in the protection internal fast data transmission Figure 8 1 page 295 Figure 8 1 Components for data transmission If the protection system is bl...

Page 312: ...ve more options for indicating information The LEDs are visible after opening the front panel of the central unit One red flashing LED per ZPS SK module indicates that the ZPS SK module is in test mode One green and three yellow LED indicate the disturbed duplex channel with the highest channel number according to Table 8 5 page 296 A flashing greed LED indicated that at least one duplex channel o...

Page 313: ...er optic cable between the transmitter and the receiver A short FO cable is included in the delivery of the central unit If the substation is operating and the control voltage for the TRIP circuits is on an additional safeguard against spurious tripping must be provided by setting the marking TRIP commands blocking to on see Chapter 6 3 2 1 page 226 Short the affected duplex channel with a fiber o...

Page 314: ...ected and at the bay unit the receiver must be bridged with the transmitter via an optical fibre The test function of the bay unit can be started via the membrane keypad or with DIGSI 4100 TEST OF COM MUNICAT INTERFAC The test takes approx 10 s Afterwards the fault rate is displayed in After the test the jumper must be replaced with the correct optical fibre again w w w E l e c t r i c a l P a r t...

Page 315: ...8 8 page 307 and Figure 8 9 page 308 Replace the fuse if necessary Chapter 8 4 2 page 306 If the red fault indicator LED is on and the green ready LED remains dark you can try to restart the device by switching the auxiliary voltage off and on again Chapter 6 3 6 page 238 If the display shows the Monitor mode Figure 8 2 page 299 you can re initalize the device with DIGSI Figure 8 2 Monitor mode sh...

Page 316: ...ystem management of the device properties You may select the content of Path copy it and insert it in the Explorer address line Further support If the above measures are not successful please contact our hotline Please have the following data ready the complete ordering information MLFB of the device the serial number of the device the version of the implemented protection firmware the boot system...

Page 317: ...Troubleshooting 301 7SS52 V4 Manual C53000 G1176 C182 3 Figure 8 4 Reading out device information in DIGSI Example w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 318: ...wing Protective devices in housings or factory assembled mounting racks are delivered as complete units and can be replaced as such by units with the same MLFB Match the pick up threshold of the binary inputs to the station conditions Plug in modules are normally interchangeable if their ordering numbers are identical as far as the oblique stroke Note on ZPS modules the address setting and the ord...

Page 319: ...ions of the device at the miniature circuit breaker Central unit To replace the battery in the central unit Loosen the screws and swing down the front panel The battery in located on the top front of the D CPU communication module Figure 8 5 page 304 Caution Do not short circuit the battery Do not reload the battery Note The complete saved configuration and setting information is protected against...

Page 320: ...polarity Close the front cover and fasten it again to the housing with the screws Put the screw covers back on Switch the auxiliary voltage on again Where the internal system clock is not automatically synchronized through one of the serial ports you can now set it as described in Chapter 6 3 7 page 239 D CPU communication module Battery Cable binder Warning The spent battery contains lithium The ...

Page 321: ...d on the bottom front of the PFE module Figure 8 6 page 305 Figure 8 6 Front view after removing the front panel and location of the buffer battery 7SS523 Figure 8 7 Front view after removing the front panel and location of the buffer battery 7SS525 Use the cable binder to pull the spent battery out from its snap in holder w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 322: ...nit To replace the fine wire fuse in the central unit Loosen the screws and swing down the front panel The fine wire fuse is located on the power supply module SV This module is plugged in at the rightmost slot in the rack Figure 2 2 page 16 Open the latch that holds the module in place Pull the module out of the housing Use the extraction handle included in the delivery to loosen the module To av...

Page 323: ...sent to the factory Figure 8 8 Location of the fine wire fuse on the power supply module SV of the central unit Bay unit To replace the fine wire fuse in the bay unit Loosen the screws and swing the front panel to the left for 7SS523 or remove it for 7SS525 The fine wire fuse is located on the power supply module SAF or PFE SVW The location of that module is shown in Figure 8 6 page 305 or Figure ...

Page 324: ...ons with the power supply and fasten the front panel again After fastening the front panel switch the device on If the auxiliary voltage failure continues to be indicated there must be a failure or short circuit in the internal power supply The complete bay unit should be sent to the factory Figure 8 9 Location of the fine wire fuse on the power supply module SAF of the bay unit 7SS523 w w w E l e...

Page 325: ... of the setting of parameter BLOCKING MODE 6305 CU The faulty bay is shown in a separate alarm list which can be called up by pressing the function key F1 on the central unit To be able to go on operating the substation until the defective bay unit or fiber optic cable has been replaced proceed as follows Set the parameter Status XX12 CU to out of service Note The faulty bay must first be excluded...

Page 326: ...Maintenance and Repair 310 7SS52 V4 Manual C53000 G1176 C182 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 327: ...reaker failure protection system and of its functions including limits that may on no account be exceeded The electrical and functional data for the maximum scope of functions are followed by the mechanical data and the dimension drawings 9 1 General Data 312 9 2 General Device Data 313 9 3 Dimensions 329 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 328: ...or running time Setting range in s 1 00 to 180 00 s in steps of 0 01 Busbar BB configuration Busbar arrangement max Quadruple or triple busbar with transfer busbar up to 16 couplers and 24 sectionalizers 12 bus sections 12 coupler bus sections 2 Number of bays 48 including bus couplers and sectionalizers 1 Nominal current of the feeder current transformer 1 A or 5 A 2 These are sections which serv...

Page 329: ...ry Voltage Rated auxiliary voltage Uaux Central unit DC 48 60 110 125 220 250 V Bay unit DC 48 to 250 V Permissible tolerance of rated auxiliary voltage Uaux 20 Max ripple 15 Power consumption dependent on station configuration Quiescent Central unit 30 to 120 W Basic requirement of device approx 15 0 W per module ZPS approx 9 0 W per module ZPS2 approx 3 5 W Bay unit 12 W 10 1 Energized Central u...

Page 330: ...ol voltages 110 V DC 260 V nominal control voltages 220 V DC 300 V Bay unit nominal control voltages 24 V DC 200 V nominal control voltages 60 V DC 220 V nominal control voltages 110 V DC 260 V nominal control voltages 220 V DC 300 V When delivered the binary inputs of the nominal control voltage are preset to 220 V 9 2 4 Alarm Contacts Number of relays Marshallable Central unit 16 NO contacts Bay...

Page 331: ...ght Emitting Diodes Central unit Ready for service green 1 Failure indication red 1 Marshallable indications red 32 Bay unit Ready for service green 1 Failure indication red 1 Indications marshallable red 11 1 1 green 5 0 1 1 Values in brackets for Bay unit 7SS525 9 2 7 Operation Displays LC display Central unit 4 lines 20 characters Bay unit 7SS523 4 lines 16 characters Sealed keypad Central unit...

Page 332: ...l D SUB 9 pole Baud rate 4800 to 115000 bauds Bay unit PC port front Connection electrical D SUB 9 pole subminiature ISO 2110 Baud rate 1200 to 38400 bauds Central bay unit Interface for high speed data communication Connection ST connectors Fiber optic cable glass fiber 62 5 125 µm Optical wavelength 820 nm Permissible cable attenuation max 8 dB Transmission distance max 1 5 km 1 1 Note Determina...

Page 333: ...Diff current supervision Setting ranges Current threshold I Ino 1 0 05 to 0 80 in steps of 0 01 Time delay 1 to 10 s in steps of 1 2 Tripping time Typical tripping time 15 ms Drop off times TRIP Reset in Bay unit Approx 45 ms Tolerances Current 5 of setting value or 50 mA k factor 5 of setting value Time 5 of setting value or 50 ms 1 Ino normalized nominal current referred to the current transform...

Page 334: ...by external CBF low current mode plus for modes with TRIP repeat pulse mode Setting ranges Overcurrent I IN 0 10 to 2 00 in steps of 0 01 0 05 to 2 00 Earthfault characteristic Stabilizing factor k 0 05 to 0 80 in steps of 0 01 Time delay for unbalancing I query 0 05 to 10 00 s in steps of 0 01 Time delay for TRIP repeat 0 00 to 10 00 s in steps of 0 01 Drop off times Mode unbalancing Approx 2 ms ...

Page 335: ...t stage IE earth I IN 0 05 to 25 00 in steps of 0 01 Trip time delays TI TIE 0 00 to 60 00 s or Inverse time overcurrent protection Inverse time O C stage IP phase I IN 0 10 to 4 00 in steps of 0 01 Inverse time O C stage IE earth I IN 0 10 to 4 00 in steps of 0 01 Trip time delays TIP TIE 0 00 to 10 00 or Characteristics inverse IEC 255 3 type A very inverse IEC 255 3 type B extremely inverse IEC...

Page 336: ...nical Data 320 7SS52 V4 Manual C53000 G1176 C182 3 Figure 9 1 Trip time characteristics of the inverse time overcurrent protection in acc with IEC 255 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 337: ...L2 IL3 IE in A primary and in IN and in INo Range 0 to 6000 IN Tolerance typically 2 of measured value Differential and IdL1 IdL2 IdL3 restraint stabilizing currents IsL1 IsL2 IsL3 Range 0 to 6000 IN Frequency f in Hz I 0 1 IN Range fN 5Hz Tolerance 0 1 Hz Event recording Central unit Storage of the last 200 operational events and 80 fault events Bay unit Storage of the last 50 operational events ...

Page 338: ...T_STATUS Double point indication with status encoder DI_TO_BOOL Double point indication to Boolean conversion DIV Division DM_DECODE Decoding of double point indication DYN_OR Dynamic OR gate LIVE_ZERO Live zero monitoring non linear characteristic LONG_TIMER Timer max 1193 h LOOP Signal feedback LOWER_SETPOINT Value below lower limit MEMORY data memory MUL Multiplication MV_GET_STATUS Information...

Page 339: ...in agreement with the generic standards EN 61000 6 2 and EN 61000 6 4 for EMC directive and with the standard EN 60255 6 for Low Voltage Directive by Siemens AG The device is designed and manufactured for application in industrial environment The product conforms with the international standards of IEC 60255 and the German standard VDE 0435 Insulation tests Standards IEC 60255 5 and IEC 60870 2 1 ...

Page 340: ...adiation with HF field single frequencies IEC 60255 22 3 10 V m 80 160 450 900 MHz IEC 61000 4 3 amplitude modulated r80 AM 1 kHz duty cycle 10 s Class III Radiated Electromagnetic Interference 35 V m 25 MHz to 1000 MHz IEEE Std C37 90 2 Fast transient disturbance Burst PE conductor 1 kV 5 kHz IEC 60255 22 4 and all circuits 4 kV 2 5 kHz IEC 61000 4 4 Class IV 5 50 ns 5 kHz burst duration 15 ms re...

Page 341: ...value class A 9 2 15 Mechanical Tests Mechanical impact Standards IEC 60255 21 1 Class II IEC 60068 2 6 test Fc Permissible mechanical impact in service sinusoidal 10 Hz to 60 Hz 0 075 mm amplitude 60 Hz to 150 Hz 1 g acceleration frequency sweep rate 1 octave min 20 cycles in 3 orthogonal axes during transport sinusoidal 5 Hz to 8 Hz 7 5 mm amplitude 8 Hz to 150 Hz 2 g acceleration frequency swee...

Page 342: ...eached their minimum permissible service temperature Humidity Permissible humidity yearly mean 75 relative humidity in service on 30 in the year up to 95 relative humidity moisture condensation not permissible We recommend to install the devices so that they are not subject to direct sunlight and strong fluctuations in temperature which could lead to moisture condensation Commissioning at temperat...

Page 343: ...easures are normally necessary for substations of lower voltag es Individual modules must not be withdrawn or inserted under voltage In withdrawn condition some components are electrostatically endangered during handling the EEC standards standards for electrostatically endangered components must be observed The modules are not endangered when plugged in 9 2 18 Design Versions Central unit SIPAC s...

Page 344: ...tor For the dimensioning of overload the continuous as well as momentary current has to be taken into consideration For magnetic trip actuator please observe the transitory current ratio The limitation of the transitory current ratio correspond to the following requirements max 18A peak value for a period of time of 0 25 ms max 12A peak value for a period of time of 1 ms w w w E l e c t r i c a l ...

Page 345: ...76 C182 3 9 3 Dimensions 9 3 1 Central Unit Figure 9 2 Mechanical dimensions of the subrack If you use the optionally available spacer angles the installation depth will be reduced by 40 mm w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 346: ...Technical Data 330 7SS52 V4 Manual C53000 G1176 C182 3 Figure 9 3 Connection plugs rear view of the subrack w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 347: ...ions 331 7SS52 V4 Manual C53000 G1176 C182 3 9 3 2 Bay Unit Figure 9 4 Dimensional drawing of 7XP20 for panel surface mounting 7SS523 all dimensions in mm w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 348: ...ical Data 332 7SS52 V4 Manual C53000 G1176 C182 3 Figure 9 5 Dimensional drawing of 7XP20 for panel or cubicle flush mounting 7SS523 all dimensions in mm w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 349: ...ensions 333 7SS52 V4 Manual C53000 G1176 C182 3 Figure 9 6 Dimensional drawing of 7XP20 for panel or cubicle flush mounting 7SS525 all dimensions in mm w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 350: ...Technical Data 334 7SS52 V4 Manual C53000 G1176 C182 3 Figure 9 7 Connection plugs rear view for flush mounted casing 7SS523 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 351: ... 5 Jumper Settings Bay Unit 356 A 6 Protocol Dependent Functions 364 A 7 Parameter Listing Central Unit 365 A 8 Parameter Listing Bay Unit 367 A 9 List of information Central Unit 373 A 10 List of Information Bay Unit 383 A 11 Group Alarms Central Unit 389 A 12 Group Alarms Bay Unit 392 A 13 Measured Value List Central Unit 393 A 14 Measured Value List Bay Unit 394 A 15 Marshalling Central Unit 39...

Page 352: ...m version 50 60 Hz V4 2 Rated auxiliary voltage of converters DC 48 60 V DC 110 125 V DC 220 250 V 3 4 5 Mechanical design in subrack ES902 C SIPAC A Communication language Region DE Language German Lang changeable Region World Language English UK Lang changeable Region US Language English US Lang changeable Region World Language French Lang changeable Region World Language Spanish Lang changeable...

Page 353: ...protection SIPROTEC 7SS52 V4 CENTRAL UNIT 7 S S 5 2 0 1 A 0 Table A 2 Selection and ordering data for bay unit 7SS523 Order No Distributed busbar and breaker failure protection SIPROTEC 7SS52 V4 BAY UNIT 7 S S 5 2 A 0 1 A A 1 System version 50 60 Hz V3 16 7 Hz V3 3 7 Rated current at 50 60 Hz 1 A 5 A 1 5 Rated auxiliary voltage of converters DC 48 V DC 60 to 250 V 2 5 Mechanical design in casing i...

Page 354: ... handle for printed circuit boards FO Simplex indoor cable length 0 2 m 2 pieces FO coupler Self adhesive labeling film Torx socket wrench insert T8 T10 T20 Buffer battery see also Table A 6 page 339 Plastic rings for FO cables A plastic bag that is attached to the rear of the device con tains the following accessories Plug in jumpers for boards Upgrade kit for EN100 module release FF and higher C...

Page 355: ...No Spare parts for the 7SS52 V4 distributed busbar and breaker failure protection Buffer battery for central and bay unit Lithium battery 3 V 1 Ah Type CR 1 2 AA 6 1 2 7 1 0 1 5 0 1 Processor boards Central Unit ZPS2 SBK 1 D CPU 2 6 M A 3 5 2 3 0 A A 0 0 6 M A 3 5 4 2 0 A A 0 0 Input output board Central Unit EAZ 6 M A 3 2 6 2 0 B A 0 1 Electrical optical converter module Central Unit LMZ 6 M A 3 ...

Page 356: ...700 m Length 800 m Length 900 m 0 1 2 3 4 5 6 7 8 9 10 meter lengths Length 0 m Length 10 m Length 20 m Length 30 m Length 40 m Length 50 m Length 60 m Length 70 m Length 80 m Length 90 m A B C D E F G H J K 1 meter lengths Length 0 m Length 1 m Length 2 m Length 3 m Length 4 m Length 5 m Length 6 m Length 7 m Length 8 m Length 9 m A B C D E F G H J K 1 Plain text order required for non standardiz...

Page 357: ...ωTS k Iscc max 1 or 2 sin ωTS k 1 2 Figure A 1 Short circuit on a feeder with CT saturation To determine the point in time TS at which saturation occurs the burdening factor Kb must be considered Figure A 2 Current time characteristic If the CT is burdened with Iscc max KbIsat it will saturate after time TS with area A being equal to area B Kb 1 cos ωTS 2 4 If inequation 2 and equation 4 are combi...

Page 358: ...agram central unit continued in Figure A 4 page 343 Legend BI Binary Input CZ Check zone BU Bay unit I DIFF Differential current I SUM Summation current CB Circuit breaker M Alarm reley BZ Bus zone BF Breaker failure ISO Isolator CU Central unit w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 359: ...Connection Diagrams 343 7SS52 V4 Manual C53000 G1176 C182 3 Figure A 4 Connection diagram central unit continued from Figure A 3 page 342 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 360: ...vice port F Time synchronizing port E RS 232 RS 485 Shield electrically connected with collar 1 P24_TSIG 2 RxD RxD P5_TSIG 3 TxD TxD A A RxD TxD N M_TSIG 4 2 5 GND GND C C GND 6 7 RTS 1 P12_TSIG 8 CTS B B RxD TxD P 9 1 Pin 7 carries the RTS signal with RS232 level even if operated as RS 485 interface Therefore pin 7 must not be connected 2 Pin 4 is assigned but cannot be used w w w E l e c t r i c...

Page 361: ...igure A 5 Connection diagram bay unit 7SS523 Table A 28 Marshalling TRIP RELAY show the default assignment of relay K1 K5 Legend BI Binary Input K Trip relay CB Circuit breaker M Alarm reley BF Breaker failure w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 362: ...3 Figure A 6 Connection diagram bay unit 7SS525 Table A 32 Marshalling TRIP RELAY show the default assign ment of relay K1 K5 Legend BI Binary Input K Trip relay CB Circuit breaker M Alarm reley w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 363: ...ections for FOs The transmit and receive connections of the FO cables are identified by the symbols for transmit output and for receive input Pin No PC port Shield electrically connected with collar 1 2 RxD 3 TxD 4 5 GND 6 7 8 9 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 364: ...ster ZBS SBK or slave ZPS BSZ or ZPS SK in the multi processor system The C53207 A361 B12 1 module can be applied universally as ZPS SK ZPS SBK and ZPS BSZ The C53207 A361 B112 1 module has no communication controller and can thus only be used as ZPS SBK and ZPS BSZ module For an unequivocal defini tion of the task the respective module is coded by means of switches The location of the code switch...

Page 365: ...off off off off off off off off off off Table A 9 Coding switch settings for the ZPS module ZPS Functions Switch SBK BSZ 1 BSZ 2 BSZ 3 SK 1 SK 2 SK 3 SK 4 SK 5 SK 6 S2 S2 1 off off off off off off off off off off S2 2 off off off off off off off off off off S2 3 off off off off off off off off off off S2 4 off on on on on on on on on on S2 5 off off off off off off off off off off S2 6 off off off...

Page 366: ...odule can be applied univer sally as ZPS SK ZPS SBK and ZPS BSZ Each module is assigned its particular task unambiguously by means of jumpers Figure A 8 Location of the jumpers on the ZPS2 module Prior to the installation of a module it is recommended that you check the jumper set tings You can find a list of these settings in Table A 10 page 351 of the Appendix w w w E l e c t r i c a l P a r t M...

Page 367: ...ff off SK off off off off on on on on on on 1 on on off off on off off off off off 2 off off on off off on off off off off 3 off off off on off off on off off off 4 off off off off off off off on off off 5 off off off off off off off off on off 6 off off off off off off off off off on X32 on on on on on on on on on on X33 off off off off off off off off off off X34 off off off off off off off off ...

Page 368: ...layout on the EAZ module Table A 11 Jumper settings for the EAZmodule Connector Jumper X9 Not installed X10 1 2 X11 to X17 Jumpers for the setting of the control voltage see Table A 12 page 353 X21 to X27 X31 to X37 X38 5 6 X39 1 2 X40 2 3 X41 1 2 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 369: ...ting for nominal control voltage Name 24 V 60 V 110 V 220 V 1 BI1 to BI5 on module D CPU Table A 15 page 355 BI6 X31 X21 X11 BI7 X32 X22 X12 BI8 X33 X23 X13 BI9 X34 X24 X14 BI10 X35 X25 X15 BI11 X36 X26 X16 BI12 X37 X27 X17 Table A 13 Coding switch setting for the EAZ module Switch S1 Position S1 1 off S1 2 on S1 3 off S1 4 off w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 370: ...Figure A 10Location of the jumpers on the D CPU module The service port can be configured as RS232 RS485 or as optical interface Insert the jumpers according to Table A 14 page 355 The Ethernet interface module EN100 has no plug in jumpers w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 371: ... 3 1 2 X109 1 2 2 3 any X110 1 2 2 3 any X111 2 3 2 3 2 3 X112 2 3 2 3 1 2 1 2 3 switches the terminating resistors on if the device is connected to the beginning or the end of a RS485 bus line 1 2 switches he terminating resistors off Table A 15 Jumper settings binary inputs for the D CPU module Connector Binary inputs Jumper 24 V 60 V 110 V 220V 1 X20 X21 BI1 1 1 2 2 3 3 4 4 X22 X23 BI2 1 1 2 2 ...

Page 372: ...gs Bay Unit A 5 1 Settings of the PFE Module Figure A 11Location of the jumpers on the PFE module Table A 16 Jumper settings for the PFE module Connector Jumper X9 Not installed X10 Not installed X15 Not installed w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 373: ...Jumper Settings Bay Unit 357 7SS52 V4 Manual C53000 G1176 C182 3 A 5 2 Settings of the SVW Module Figure A 12No jumpers on the SVW module w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 374: ...Appendix 358 7SS52 V4 Manual C53000 G1176 C182 3 A 5 3 Settings of the SAF Module Figure A 13No jumpers on the SAF module w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 375: ...Jumper Settings Bay Unit 359 7SS52 V4 Manual C53000 G1176 C182 3 A 5 4 Settings of the AFE Module Figure A 14No jumpers on the AFE module w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 376: ...f the jumpers on the EFE module Table A 17 Jumper settings for the EFE module Connector Jumper X35 to X94 Jumpers for the voltage setting see Table A 18 page 361 X2 wire jumper Not installed X95 wire jumper Not installed X96 wire jumper Not installed w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 377: ... V 60 V 110 V 220 V 1 BI 1 X37 X36 X35 BI 2 X40 X39 X38 BI 3 X43 X42 X41 BI 4 X46 X45 X44 BI 5 X49 X48 X47 BI 6 X52 X51 X50 BI 7 X55 X54 X53 BI 8 X58 X57 X56 BI 9 X61 X60 X59 BI 10 X64 X63 X62 BI 11 X67 X66 X65 BI 12 X70 X69 X68 BI 13 X73 X72 X71 BI 14 X76 X75 X74 BI 15 X79 X78 X77 BI 16 X82 X81 X80 BI 17 X85 X84 X83 BI 18 X88 X87 X86 BI 19 X91 X90 X89 BI 20 X94 X93 X92 w w w E l e c t r i c a l P...

Page 378: ...pers on the EFE_10 module Table A 19 Jumper settings for the EFE_10 module Connector Jumper X35 to X58 and X74 to X79 Jumpers for the voltage setting see Table A 20 page 363 X2 wire jumper Not installed X95 wire jumper Not installed X96 wire jumper Not installed w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 379: ...tages of the binary inputs of the EFE_10 module Setting for nominal control voltage Name 24 V 60 V 110 V 220 V 1 BI 1 X37 X36 X35 BI 2 X40 X39 X38 BI 3 X43 X42 X41 BI 4 X46 X45 X44 BI 5 X49 X48 X47 BI 6 X52 X51 X50 BI 7 X55 X54 X53 BI 8 X58 X57 X56 BI 9 X79 X78 X77 BI 10 X76 X75 X74 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 380: ...e control No No User defined indications and switching objects Yes Yes Time synchronization Yes Yes Annunciation with time stamp Yes Yes Commissioning Aids Alarm and Measured Value Transmission Blocking Creating test annunciations Acknowledging LED Yes Yes Yes Yes Yes Yes Physical mode Asynchronous Synchronous Transmission mode Cyclic Event Cyclic Event Baud rate 4800 to 38400 up to 100 MBaud Type...

Page 381: ... Time delay for BF with multi pole faults 122 T BF I BU 0 05 10 00 sec 0 25 sec Time delay for BF low current mode 123A T BF IMP BU 0 05 10 00 sec 0 50 sec Time delay for BF pulse mode 124 T BF CB fault BU 0 00 10 00 sec 0 10 sec Time delay BF after CB fault 125 T TRIP repeat BU 0 00 10 00 sec 0 12 sec Time delay for TRIP repeat 126 T CB open BU 0 00 10 00 sec 0 00 sec Time delay for CB open 127 T...

Page 382: ...6306 DIFF SUPERV Monitoring ON OFF ON Differential current supervision 6307 T Idiff SUPERV Monitoring 1 00 10 00 sec 2 00 sec Time delay for diff current supervision 6308 Id SUPERV BZ Monitoring 0 05 0 80 I Ino 0 10 I Ino Limit value diff current supervision BZ 6309 Id SUPERV CZ Monitoring 0 05 0 80 I Ino 0 10 I Ino Limit value diff current supervision CZ 6310 DIF SUP mode BZ Monitoring alarm only...

Page 383: ...up value inverse time O C stage Ip 1215 T Ip O C Protection Phases 0 05 10 00 s 0 infinite 0 50 s Trip time delay inverse time O C stage Ip 1216 RMS FORMAT O C Protection Phases FUNDAMENTAL TRUE RMS FUNDAMENTAL RMS format for inverse time O C protection 1221 MAN CLOSE O C Protection Phases I UNDELAYED I Ip UNDELAYED INEFFECTIVE I UNDELAYED Overcurrent stage valid for phase currents when the circui...

Page 384: ...NN2Fct No User Logic Func tions 0 9999 0 Binary input annunciation Fct no by annunc 2 2823 ANN3Fct No User Logic Func tions 0 9999 0 Binary input annunciation Fct no by annunc 3 2824 ANN4Fct No User Logic Func tions 0 9999 0 Binary input annunciation Fct no by annunc 4 2831 ANN1Inp No User Logic Func tions 0 9999 0 Input annunciation Fct no for userdef logic1 2832 ANN2Inp No User Logic Func tions ...

Page 385: ...Y4 Tests Switch off trip relay 4 4809 TRIP RELAY5 Tests Switch on trip relay 5 4810 TRIP RELAY5 Tests Switch off trip relay 5 4811 SIGN RELAY1 Tests Switch on signal relay 1 4812 SIGN RELAY1 Tests Switch off signal relay 1 4901 FAULT REC Tests Initiation of fault recording 5604 Trip No CB operat statis tics Number of trip commands issued 5607 ΣIL1 In CB operat statis tics Summated current tripped ...

Page 386: ...ab L2 Ino 5718 ISL3 Operational measured values Bus Zone Istab L3 Ino 5719 f Hz Operational measured values Frequency f Hz 6101 BINARY INPUT 1 Marshalling Binary input 1 6120 BINARY INPUT 20 Marshalling Binary input 20 6201 SIGNAL RELAY 1 Marshalling Signal relay 1 6301 LED 1 Marshalling LED 1 6316 LED 16 Marshalling LED 16 6401 TRIP RELAY 1 Marshalling Trip relay 1 6405 TRIP RELAY 5 Marshalling T...

Page 387: ...ER ADD PC System Inter faces 1 254 Feeder address 7203 SUBST ADD PC System Inter faces 1 254 Substation address 7208 FUNCT TYPE PC System Inter faces 1 254 160 Function type in accordance with VDEW ZVEI 7209 DEVICE TYPE PC System Inter faces 0 255 194 Device type 7211 PC INTERF PC System Inter faces DIGSI V3 ASCII DIGSI V3 Data format for PC interface 7215 PC BAUDRATE PC System Inter faces 1200 BA...

Page 388: ...IONS DEFINITE TIME INVERSE TIME DEFINITE TIME Characteristic O C protection phas es 7815 CHARAC E SCOPE OF FUNCTIONS DEFINITE TIME INVERSE TIME DEFINITE TIME Characteristic O C protection earth 7899 FREQUENCY SCOPE OF FUNCTIONS 50 Hz 60 Hz 50 Hz Rated system frequency 8201 RESET RESET Reset of LED memories 8202 RESET RESET Reset of operational annunciation buffer 8203 RESET RESET Reset of fault an...

Page 389: ...wing applies UPPER CASE NOTATION ON OFF fdefinitely set not allocatable lower case notation ON OFF preset allocatable not preset allocatable blank neither preset nor allocatable In column Marked in Oscill Record the following applies UPPER CASE NOTATION M fdefinitely set not allocatable lower case notation M preset allocatable not preset allocatable blank neither preset nor allocatable 1 column Me...

Page 390: ...dressed The type is divided into 12 blocks with 21 information numbers each The blocks are assigned to the bus zones The basic type number is given in brackets Example The effective information number can be calculated with the following formula x 21 n 1 m Bus Zone n Information Number m Type Effective Information Number x 1 1 207 1 21 21 12 1 207 232 21 252 w w w E l e c t r i c a l P a r t M a n...

Page 391: ... for the first instance bay unit or busbarsection The effective in formation number of each type number can be calculated with the following formula x 63 n 1 m Column Information number The basic information number is given in brackets Bay Unit No n Information Number m Type Effective Information Number x 1 1 1 195 1 63 63 2 2 1 195 64 63 126 3 3 1 195 127 63 189 4 4 1 195 190 63 252 5 1 1 196 1 6...

Page 392: ...f LED BO 194 22 1 Yes 71 Settings Check Settings Check Device OUT LED BO 72 Level 2 change Level 2 change Device OUT on off LED BO 73 Local setting change Local change Device OUT 95 Setting change in progress Change in Prog Device OUT LED BO 110 Event lost Event Lost Device OUT_ Ev on LED BO 135 130 1 No 113 Flag Lost Flag Lost Device OUT on m LED BO 135 136 1 Yes 125 Chatter ON Chatter ON Device ...

Page 393: ... of Breaker Failure Pro tection Blocking BF BF Protection SP on off LED BI BO 194 164 1 Yes 10431 Blocking of Breaker Failure Pro tection Blocking BF BF Protection IntSP on off LED BO 10432 Breaker Failure Protection blocked BF blocked BF Protection OUT on off LED BO 194 165 1 Yes 10433 Breaker Failure Transfer Trip g a Transf Trip G BF Protection OUT m LED BO 194 180 2 Yes 10434 Timing error BF i...

Page 394: ...cking of diff current superv reset Id Block Reset Monitoring OUT_ Ev on LED BO 10465 Reset blocking of isolator fault Reset IsoMalBl Monitoring SP on LED BI BO 194 222 1 Yes 10466 Reset blocking of isolator fault Reset IsoMalBl Monitoring OUT on LED BO 10467 Blocking of isolator fault reset IsoMalBl Reset Monitoring OUT_ Ev on LED BO 10470 Isolator oper prohibited isol fault IsoProhib fault Monito...

Page 395: ... OUT on off LED BO 195 3 1 Yes 176 1063 00 failure Failure 00 BU OUT on off LED BO 195 8 1 Yes 176 1071 Trip repeat 00 phase L1 TripRep 00 L1 BU OUT on LED BO 195 10 2 Yes 176 1072 Trip repeat 00 phase L2 TripRep 00 L2 BU OUT on LED BO 195 11 2 Yes 176 1073 Trip repeat 00 phase L3 TripRep 00 L3 BU OUT on LED BO 195 12 2 Yes 176 1081 No release of TRIP command 00 noTripRel 00 BU OUT on LED BO 195 1...

Page 396: ...176 1136 Circuit breaker fault 01 CB fault 01 BU OUT on off LED BO 195 44 1 Yes 176 1141 Input 1 from 00 IN1 00 BU OUT LED BO 195 45 1 Yes 176 1142 Output 1 to 00 OUT1 00 BU OUT LED BO 195 46 1 Yes 176 1143 Input 2 from 00 IN2 00 BU OUT LED BO 195 47 1 Yes 176 1144 Output 2 to 00 OUT2 00 BU OUT LED BO 195 48 1 Yes 176 1145 Input 3 from 00 IN3 00 BU OUT LED BO 195 49 1 Yes 176 1146 Output 3 to 00 O...

Page 397: ... 1336 Block Trip command for 03 Blk Trip 03 Protection Zone SP on off LED BI BO CB Yes 177 1337 Block Trip command 03 03 BlkTrip Protection Zone IntSP on off LED BO Yes 177 1338 Blocked Trip command 03 03 BlkdTrip Protection Zone OUT on off LED BO 207 15 1 Yes 177 1341 Trip command for 03 group alarm Trip 03 G Protection Zone OUT LED BO 207 1 2 Yes 177 1342 Trip command for 03 L1 Trip 03 L1 Protec...

Page 398: ... Hardware Test Mode HWTest Mod Device IntSP on off LED BO Reset LED Reset LED Device IntSP on LED BO 194 19 1 No Stop data transmission DataS top Device IntSP on off LED BO 194 20 1 Yes Test mode Test mode Device IntSP on off LED BO 194 21 1 Yes Unlock data transmission via BI UnlockDT Device IntSP LED BO 1 Depending on the configuration wildcards such as 01 will be substituted by the configured v...

Page 399: ...d measuring functions blocked on off 1 CA GI p 20 62 Test mode Test mode on off 1 CA GI p 21 95 Param running Parameters are being set on off 1 CA GI p 22 100 Wrong SW vers Wrong software version on 101 Wrong dev ID Wrong device identification on 110 Annunc lost Annunciations lost buffer overflow on 1 135 130 111 Annu PC lost Annunciations for PC lost on 112 Annu LSA lost Annunciations for LSA los...

Page 400: ...rent in phase IL3 M 604 IE Earth current M 651 IL1 Current in phase IL1 M 652 IL2 Current in phase L2 M 653 IL3 Current in phase L3 M 654 IE Earth current M 694 f Hz Frequency f Hz M 1000 Trip No Number of trip commands issued M 1004 Σ IL1 In Summated current tripped IL1 In M 1005 Σ IL2 In Summated current tripped IL2 In M 1006 Σ IL3 In Summated current tripped IL3 In M 1015 IL1 In Last trip curre...

Page 401: ...ion earth is switched off on off IOT 1 GI 60 26 1757 O C E block O C protection earth is blocked OT 1758 O C E active O C protection earth is active OT 1 GI 60 28 1759 O C IE off O C prot earth is switched off IE on off 1 GI 60 29 1760 O C IEp off O C prot earth is switched off IEp on off 1 GI 60 30 1761 O C Gen Fault General fault detection O C OT 2 CA GI p 84 1762 Fault L1 O C fault detection ph...

Page 402: ... IE Fault O C fault detection IE earth on OT 2 GI 60 59 1832 T IE expired O C time TIE expired on OT 2 60 60 1833 IE Trip O C protection IE earth trip OT 2 60 61 1834 IE Fault O C fault detection IE earth on OT 2 GI 60 62 1835 T IE expired O C time TIE expired on OT 2 60 63 1836 IE Trip O C protection IE earth trip OT 2 CA p 92 1837 IEp Fault O C fault detection IEp earth on OT 2 GI 60 64 1838 T I...

Page 403: ...2 7634 CBF Trp rp L2 CBF protection Trip repeat phase L2 on OT 2 TA 194 103 7635 CBF Trp rp L3 CBF protection Trip repeat phase L3 on OT 2 TA 194 104 7636 CB Test L1 Circuit breaker test Trip phase L1 on OT 2 194 105 7637 CB Test L2 Circuit breaker test Trip phase L2 on OT 2 194 106 7638 CB Test L3 Circuit breaker test Trip phase L3 on OT 2 194 107 7639 BB intertrip Busbar protection Intertrip on ...

Page 404: ...r on off on IOT 7691 TR1flt Trp np Relay1 control circuit flt no trip pos on off OT 1 GI 194 145 7692 TR2flt Trp np Relay2 control circuit flt no trip pos on off OT 1 GI 194 146 7693 TR3flt Trp np Relay3 control circuit flt no trip pos on off OT 1 GI 194 147 7694 TR4flt Trp np Relay4 control circuit flt no trip pos on off OT 1 GI 194 148 7695 TR5flt Trp np Relay5 control circuit flt no trip pos on...

Page 405: ...group alarm 3 BZnn Ln BSZ2 3 176 1171 15V supply supervision 00 BUnn 176 1172 5V supply supervision 00 BUnn 176 1173 0V supply supervision 00 BUnn 10423 Measured value superv BU group alarm BUnn 10444 Blocking by supervision zero crossing Block ZeroCross BZnn 10475 Error without protection blocking 10425 Isolator fault alarm 4 BUnn Isoln 10410 Diff current superv CZ group alarm 5 Ln 10415 Diff cur...

Page 406: ...hase L1 BUnn 176 1072 Trip repeat 00 phase L2 BUnn 176 1073 Trip repeat 00 phase L3 BUnn 10433 Breaker Failure Transfer Trip 176 1082 Breaker failure Transfer trip 00 BUnn 10434 Timing error BF input 176 1091 Timing error BF input 00 L1 BUnn 176 1092 Timing error BF input 00 L2 BUnn 176 1093 Timing error BF input 00 L3 BUnn 176 1096 Timing error BF input 00 3pole BUnn 10435 Timing error BF release...

Page 407: ...erv CZ 10411 Diff current supervision Check Zone L1 10412 Diff current supervision Check Zone L2 10413 Diff current supervision Check Zone L3 10415 Diff current superv BZ 177 1321 Id sup 03 L1 2 BZnn 177 1322 Id sup 03 L2 2 BZnn 177 1323 Id sup 03 L3 2 BZnn 177 1326 Id sup 03 L1 3 BZnn 177 1327 Id sup 03 L2 3 BZnn 177 1328 Id sup 03 L3 3 BZnn 10416 Diff current superv BZ L1 177 1321 Id sup 03 L1 2...

Page 408: ...ult detection of device 1455 Back up breaker fail prot fault det 1761 General fault detection O C 7630 Busbar protection Fault detected 511 General trip of device 1471 Trip by back up breaker failure prot 1791 O C general trip command 7631 Busbar protection Trip in phase L123 7632 CBF protection Trip repeat phase L123 7633 CBF protection Trip repeat phase L1 7634 CBF protection Trip repeat phase L...

Page 409: ...figurable in Matrix Control display and Default display not in 7SS52 V4 FNo Description Function IEC 60870 5 103 Configurable in Matrix Function type Information No Compatibility Data Unit Position CFC Control Display Default Display 10401 CZ Idiff L1 CZ Id1 CZ Id Is CFC 10402 CZ Idiff L2 CZ Id2 CZ Id Is CFC 10403 CZ Idiff L3 CZ Id3 CZ Id Is CFC 10404 CZ Istab L1 CZ Is1 CZ Id Is CFC 10405 CZ Istab...

Page 410: ...5704 IE Earth Current In 5705 IL1 Current in phase L1 A 5706 IL2 Current in phase L2 A 5707 IL3 Current in phase L3 A 5708 IE Earth Current A 5709 IL1 Current in phase IL1 Ino 5710 IL2 Current in phase IL2 Ino 5711 IL3 Current in phase IL3 Ino 5712 IE Earth Current Ino 5713 IDL1 Bus Zone Idiff L1 Ino 5714 IDL2 Bus Zone Idiff L2 Ino 5715 IDL3 Bus Zone Idiff L3 Ino 5716 ISL1 Bus Zone Istab L1 Ino 57...

Page 411: ...ocking of isolator fault 8 empty empty 12 empty empty Relay Annunciation FNo Comments 1 Err PROT BLOCK 10476 Error with protection blocking 2 Err PROT ACTIVE 10475 Error without protection blocking 3 BU fail M 10455 Bay unit failure 3 Meas sup BU M 10423 Measured value superv BU 4 15V superv CU 10420 15V supply supervision central unit 24V superv CU 10421 24V supply supervision central unit Batt s...

Page 412: ...sfer Trip 16 Device Trip 10445 Device Trip LED Annunciation FNo Comments 1 Err PROT BLOCK 10476 Error with protection blocking 2 Err PROT ACTIVE 10475 Error without protection blocking 3 BU fail M 10455 Bay unit failure Meas sup BU M 10423 Measured value superv BU 4 15V superv CU 10420 15V supply supervision central unit 24V superv CU 10421 24V supply supervision central unit Batt superv CU 10422 ...

Page 413: ...Failure Protection blocked 12 Maintenance M 10454 Maintenance of bay out of serv M 10453 Bay out of service 13 IsoProhib fault 10470 Isolator oper prohibited IsoProhib G 10471 Isolator oper prohibited 14 TripRep BU M 10450 Trip repeat BU 15 Transf Trip M 10433 Breaker Failure Transfer Trip 16 Device trip M 10445 Device Trip 17 Trip L1 M 10446 Trip command L1 18 Trip L2 M 10447 Trip command L2 19 T...

Page 414: ... closed 6108 BINARY INPUT 8 Isolator4off NO 7608 Isolator 4 position open 6109 BINARY INPUT 9 Isolator5on NO 7609 Isolator 5 position closed 6110 BINARY INPUT 10 Isolator5off NO 7610 Isolator 5 position open 6111 BINARY INPUT 11 CBF L1 NO 7611 Circuit breaker failure start phase L1 6112 BINARY INPUT 12 CBF L2 NO 7612 Circuit breaker failure start phase L2 6113 BINARY INPUT 13 CBF L3 NO 7613 Circui...

Page 415: ...breaker test Trip phase L2 O C general trip command 6403 TRIP RELAY 3 BB Trip L123 CBF Trip L123 CBF Trp rp 3p CBF Trp rp L3 CB Test L3 O C Gen Trip 7631 7643 7632 7635 7638 1791 Busbar protection Trip in phase L123 CBF protection Trip L123 CBF protection Trip repeat phase L123 CBF protection Trip repeat phase L3 Circuit breaker test Trip phase L3 O C general trip command 6404 TRIP RELAY 4 BB Trip...

Page 416: ...ed value supervision of currents group alarm 6312 LED 12 not marshalled 1 No function assigned to this output 6313 LED 13 Fail Com CU nm 7650 Failure in communication w Central Unit 6314 LED 14 BB Trip L123 CBF Trip L123 CBF Trp rp 3p CBF Trp rp L1 CBF Trp rp L2 CBF Trp rp L3 CB Test L1 CB Test L2 CB Test L3 relay Trip m m m m m m m m m m 7631 7643 7632 7633 7634 7635 7636 7637 7638 0511 Busbar pr...

Page 417: ...n NO 7603 Isolator 2 position closed 6104 BINARY INPUT 4 Isolator2off NO 7604 Isolator 2 position open 6105 BINARY INPUT 5 CB ON NO 7623 Circuit breaker closed 6106 BINARY INPUT 6 CB OFF NO 7617 Circuit breaker open 6107 BINARY INPUT 7 not marshalled NO 1 No function assigned to this input 6108 BINARY INPUT 8 not marshalled NO 1 No function assigned to this input 6109 BINARY INPUT 9 not marshalled...

Page 418: ...638 1791 Busbar protection Trip in phase L123 CBF protection Trip L123 CBF protection Trip repeat phase L123 CBF protection Trip repeat phase L3 Circuit breaker test Trip phase L3 O C general trip command 6404 TRIP RELAY 4 BB Trip L123 CBF Trip L123 CBF Trp rp 3p CBF Trp rp L1 CBF Trp rp L2 CBF Trp rp L3 CB Test L1 CB Test L2 CB Test L3 O C Gen Trip 7631 7643 7632 7633 7634 7635 7636 7637 7638 179...

Page 419: ...able A 35 Navigation tree of the central unit 1st level 2nd level 3rd level 4th level 5th level CZ Idiff Istab L1 xxx x xxx x Ino L2 xxxx x yyyy y Ino L3 xxx x xxx x Ino 7SS5220 5FA31 1AA0 Bootsystem V Firmware V P Set V MAIN MENU xx yy Annunciations x Measurement x Control x Parameter x Test Diagnosis x Annunciations xx yy Event Log x Trip Log x Warnings x Set Reset x EVENT LOG xx yy dd mm yy hh ...

Page 420: ... CZ ID IS xx yy CZ Id L1 Ino CZ Id L2 Ino CZ Id L3 Ino CZ Is L1 Ino CZ Is L2 Ino CZ Is L3 Ino BZ ID IS xx yy BZ01 xx BZyy xx BZyy xx nn BZyy Id L1 Ino BZyy Id L2 Ino BZyy Id L3 Ino BZyy Is L1 Ino BZyy Is L2 Ino BZyy Is L3 Ino BU I xx nn BU01 xx BUxx xx BUxx xx nn BUxx IL1 BUxx IL2 BUxx IL BU I xx nn BU01 xx BUxx xx BUxx xx nn BUxx IL1 Ino BUxx IL2 Ino BUxx IL Ino Table A 35 Navigation tree of the ...

Page 421: ...F Interlock xx yy TRIP blocking Blocking BF PARAMETER xx yy Device Config x Masking I O x Substat Data x Param Group x Fault Recording x BU x Setup Extras x Device Config xx yy Masking I O xx yy Binary Inputs x LED x Binary Output x Binary Inputs xx yy Binary Input1 Binary Input12 LED xx yy LED 1 LED 32 Table A 35 Navigation tree of the central unit 1st level 2nd level 3rd level 4th level 5th leve...

Page 422: ...eneral x BB Prot x BF Prot x BU x Supervision x General xx yy 6106 Tmin TRIP s General xx yy 5401 PROT TR BUS released General xx yy 6318 CRTL REL BU released BB PROT xx yy 6101 STAB FAC BZ BB PROT xx yy 6102 Id BZ I Ino Table A 35 Navigation tree of the central unit 1st level 2nd level 3rd level 4th level 5th level w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 423: ...xx yy 6104 Id CZ I Ino BF PROT 6201 STAB FAC BF BU xx yy BU01 xx BUnn xx BUxx xx yy xx12 Bay status out of service BUxx xx yy xx13 I TRIP I In Supervision xx yy 6305 Blocking Mode zone phase Table A 35 Navigation tree of the central unit 1st level 2nd level 3rd level 4th level 5th level w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 424: ...V CZ I Ino Supervision xx yy 6310 DIF SUP mode BZ blocking Supervision xx yy 6311 DIF SUP mode CZ alarm only Supervision xx yy 6307 TIdiff SUPERV s Supervision xx yy 6301 ISOL RUN TIME s Supervision xx yy 6303 ISOL DC FAIL old isolator status Table A 35 Navigation tree of the central unit 1st level 2nd level 3rd level 4th level 5th level w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 425: ...2 ISOL Malfunct alarm only Supervision xx yy 6316 I MAN TRIP I In Osc Fault Rec xx yy 6404 MAX LENGTH s Osc Fault Rec xx yy 6405 PRE TRIG TIME s Osc Fault Rec xx yy 6406 POST REC TIME s Osc Fault Rec xx yy 6407 BinIn CAPT TIME s Table A 35 Navigation tree of the central unit 1st level 2nd level 3rd level 4th level 5th level w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 426: ... Time 100min Offset 2min Serial Ports xx yy PC port x System port x Service port x PC PORT xx yy Phys Addr 254 Baud rate 19200Baud Parity 8E1 Gaps s 6th level for SYSTEM PORT IEC 60870 5 103xx yy Phys Addr 254 Baud rate 19200Baud Parity 8E1 Gaps s OFF Sig Light off SYSTEM PORT IEC 60870 5 103 x SERVICE PORT xx yy Phys Addr 254 Baud rate 19200Baud Parity 8E1 Gaps s Table A 35 Navigation tree of the...

Page 427: ...LB No Firmware V Bootsystem V P Set V CONTRAST TEST DIAGNOSIS xx yy Device reset x Test Enable x Blk Data Trans x Hardware Test x Osc Fault Rec x Set Reset x SIEMENS Intern x Device reset TEST Enable TEST Enable OFF Table A 35 Navigation tree of the central unit 1st level 2nd level 3rd level 4th level 5th level w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 428: ...d OFF Osc Fault Rec FltRecSta ON Set Reset xx yy Event Log x TRIP log x Reset Id Block x Reset IsoMalBl x 4 Fault Device TRIP Transf TRIP M 5 Startup SIPROTEC 7SS5220 5FA31 1AA0 Firmware V Bootsystem V Table A 35 Navigation tree of the central unit 1st level 2nd level 3rd level 4th level 5th level w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 429: ...Unit The following navigation tree gives an overview of the parameter blocks and the indi vidual parameters that can be set in the bay units of the SIPROTEC 7SS52 V4 distrib uted busbar and failure protection Figure A 17Navigation tree of the bay unit w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 430: ...oards for protection in the selective zones BU Bay unit BZ Bus zone CB Circuit Breaker CBF Breaker failure protection CFC Continuous Function Chart CU Central unit CZ Check zone DA Direct address EAZ Input output module g a group alarm HW Hardware ISOL Isolator KOM Communication board used for operation LED Light emitting diode M Measurement MLFB Coded ordering numbers PC Personal computer REL Rel...

Page 431: ...OTEC DIGSI 4 Start Up E50417 G1176 C152 A4 3 DIGSI CFC Manual E50417 H1176 C098 A9 4 SIPROTEC SIGRA 4 Manual E50417 H1176 C070 A4 5 Ethernet IEC 61850 Start UP E50417 F1100 C324 A1 6 SIPROTEC Distributed Busbar Breaker Failure Protection IEC 61850 PIXIT C53000 G1176 C180 2 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 432: ...Appendix 416 7SS52 V4 Manual C53000 G1176 C182 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 433: ...27 Bus coupler variants 1 bay coupler 103 2 bay bus couple 107 2 bay bus coupler 107 2 bay coupler 104 without circuit breaker 104 Busbar coupling via isolators 146 Busbar protection 92 Evaluation of half cycles 96 C Central unit Communication module D CPU 16 Fiber optic module LMZ 17 I O module EAZ 16 jumpers ZPS module 348 Power supply module SV 16 Processor modules ZPS 17 Subrack ES902 C SIPAC ...

Page 434: ...19 Rated auxiliary voltage 313 Serial interfaces 316 Service conditions 327 Trip contacts 315 User configurable functions CFC 322 Data for ordering 336 Data for selection 336 DCF77 85 86 Defining Bays 54 Deleting event buffer 233 Dimensions Bay unit 331 Central unit 329 Double leaf spring crimp contacts 26 Drawing Busbars 52 D SUB female connectors 27 28 E Electrical tests 323 EMC tests 324 F Fail...

Page 435: ...mation 300 Monitor mode 299 Monitoring Battery 143 Cyclic test 144 Differential current 145 External current transformer circuits 144 in maintenance mode 143 Isolator 143 Measured value errors 141 Memory 143 Release of the breaker failure protection 118 Trip output 143 Zero current 146 N Navigation tree BU 413 CU 403 O Operating mode I query 122 Low current 124 Pulse mode 125 TRIP repetition I que...

Page 436: ...BF 2chan 131 T BF CB fault 130 T BF I 130 T BF IMP 130 T BF rel sup 131 T BF 1P 130 T BF 3P 130 T BINARY IN 183 T CB open 139 Test mode SK 172 TI 191 TI 191 T Idiff SUPERV 154 TIE 193 TIE 192 TIEp 194 TIp 192 T KEYBOARD 183 T MAX 182 Tmin TRIP 172 T POST 183 T PRE 183 TRIP repetition 130 T TRIP repeat 131 ZERO CR SUPERV 155 Plant Configuration How to Proceed 49 Plant visualisation 249 ports others...

Page 437: ...nventions v T Test System interface 273 Test mode 275 277 Time delay Unbalancing 286 Time format 88 Time Synchronization 85 90 Training courses iv Transfer Busbar Operation with Several Feeders 107 Transfer busbars 105 Transmission block 277 Transmittig setting values to the device 80 Trigger initial start 238 restart 238 Trip characteristic Unbalancing 285 TRIP command Minimum duration 167 Overcu...

Page 438: ...Index 422 7SS52 V4 Manual C53000 G1176 C182 34 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 439: ...ors can never be entirely eliminated there fore should you come across any when reading this manual kindly enter them in this form together with any comments or suggestions for improvement that you may have From Name Company Dept Address Phone no Fax no Corrections Suggestions w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 440: ...f are forbid den without express authority Offenders are liable to the payment of damages All rights are reserved in the event of the grant of a patent or the registration of a utility model Order no C53000 G1176 C182 3 Available from LZF Fürth Bislohe Siemens Aktiengesellschaft w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

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