GE C70 User manual

GE
Grid Solutions
Instruction Manual
Product version: 7.4x
GE publication code: 1601-9015-AE3 (GEK-130976B)
C70
Capacitor Bank Protection
and Control System
1601-9015-AE3
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Copyright © 2017 GE Multilin Inc. All rights reserved.
C70 Capacitor Bank Protection and Control System Instruction Manual for version 7.4x.
C70, FlexLogic, FlexElement, FlexCurve, FlexAnalog, FlexInteger, FlexState, EnerVista,
CyberSentry, HardFiber, Multilin, and GE Multilin are trademarks or registered trademarks
of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part number: 1601-9015-AE3 (April 2017)

C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL iii
C70 Capacitor Bank Protection and Control System
Table of contents
1 INTRODUCTION 1.1 Safety symbols and definitions..................................................................... 1-1
1.1.1 General cautions and warnings .................................................................................... 1-1
1.2 For further assistance .................................................................................... 1-2
2PRODUCT
DESCRIPTION
2.1 Product description......................................................................................... 2-1
2.2 Security.............................................................................................................. 2-3
2.3 Order codes ...................................................................................................... 2-7
2.3.1 Order codes with enhanced CT/VT modules........................................................... 2-8
2.3.2 Order codes with process bus modules ..................................................................2-10
2.3.3 Replacement modules.....................................................................................................2-12
2.4 Signal processing...........................................................................................2-14
2.4.1 UR signal processing ........................................................................................................2-14
2.5 Specifications .................................................................................................2-16
2.5.1 Protection elements..........................................................................................................2-17
2.5.2 User-programmable elements ....................................................................................2-22
2.5.3 Monitoring..............................................................................................................................2-23
2.5.4 Metering..................................................................................................................................2-24
2.5.5 Inputs .......................................................................................................................................2-25
2.5.6 Power supply........................................................................................................................2-26
2.5.7 Outputs....................................................................................................................................2-27
2.5.8 Communications ................................................................................................................2-29
2.5.9 Inter-relay communications..........................................................................................2-30
2.5.10 CyberSentry security.........................................................................................................2-31
2.5.11 Environmental......................................................................................................................2-31
2.5.12 Type tests...............................................................................................................................2-32
2.5.13 Production tests..................................................................................................................2-32
2.5.14 Approvals ...............................................................................................................................2-33
2.5.15 Maintenance.........................................................................................................................2-33
3 INSTALLATION 3.1 Unpack and inspect......................................................................................... 3-1
3.2 Panel cutouts.................................................................................................... 3-2
3.2.1 Horizontal units ..................................................................................................................... 3-2
3.2.2 Vertical units........................................................................................................................... 3-3
3.2.3 Rear terminal layout ........................................................................................................... 3-8

iv C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
3.3 Wiring ..............................................................................................................3-10
3.3.1 Typical wiring.......................................................................................................................3-10
3.3.2 Dielectric strength .............................................................................................................3-11
3.3.3 Control power......................................................................................................................3-11
3.3.4 CT/VT modules ....................................................................................................................3-12
3.3.5 Process bus modules ....................................................................................................... 3-14
3.3.6 Contact inputs and outputs ..........................................................................................3-15
3.3.7 Transducer inputs and outputs...................................................................................3-26
3.3.8 RS232 faceplate port........................................................................................................3-27
3.3.9 CPU communication ports ............................................................................................3-28
3.3.10 IRIG-B.......................................................................................................................................3-30
3.4 Direct input and output communications ................................................3-31
3.4.1 Description............................................................................................................................3-31
3.4.2 Fiber: LED and ELED transmitters...............................................................................3-34
3.4.3 G.703 interface....................................................................................................................3-34
3.4.4 RS422 interface...................................................................................................................3-38
3.4.5 IEEE C37.94 interface .......................................................................................................3-40
3.5 Activate relay .................................................................................................3-43
3.6 Install software ..............................................................................................3-44
3.6.1 EnerVista communication overview .........................................................................3-44
3.6.2 System requirements.......................................................................................................3-45
3.6.3 Install software....................................................................................................................3-46
3.7 Add device to software.................................................................................3-47
3.7.1 Set IP address in UR..........................................................................................................3-47
3.7.2 Configure serial connection..........................................................................................3-53
3.7.3 Configure Ethernet connection...................................................................................3-54
3.7.4 Configure modem connection.....................................................................................3-56
3.7.5 Automatic discovery of UR devices...........................................................................3-56
3.8 Connect to the C70........................................................................................3-57
3.8.1 Connect to the C70 in EnerVista .................................................................................3-57
3.8.2 Use Quick Connect via the front panel RS232 port............................................3-58
3.8.3 Use Quick Connect via a rear Ethernet port..........................................................3-59
3.9 Set up CyberSentry and change default password.................................3-59
3.10 Import settings...............................................................................................3-60
4 INTERFACES 4.1 EnerVista software interface......................................................................... 4-1
4.1.1 Introduction .............................................................................................................................4-1
4.1.2 Settings files ............................................................................................................................4-1
4.1.3 Event viewing..........................................................................................................................4-2
4.1.4 File support ..............................................................................................................................4-3
4.1.5 EnerVista main window .....................................................................................................4-3
4.1.6 Protection summary window..........................................................................................4-4
4.1.7 Settings templates................................................................................................................4-5
4.1.8 Secure and lock FlexLogic equations..........................................................................4-9
4.1.9 Settings file traceability...................................................................................................4-12
4.2 Front panel interface ....................................................................................4-15
4.2.1 Front panel display............................................................................................................4-15
4.2.2 Front panel keypad...........................................................................................................4-16
4.2.3 Menu navigation ................................................................................................................4-16
4.2.4 Menu hierarchy...................................................................................................................4-16
4.2.5 Changing settings..............................................................................................................4-17
4.2.6 Faceplate ...............................................................................................................................4-19
4.2.7 LED indicators......................................................................................................................4-20
4.2.8 Custom LED labeling ........................................................................................................4-23

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C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL v
4.2.9 Breaker control....................................................................................................................4-28
4.2.10 Change passwords............................................................................................................4-29
4.2.11 Invalid password entry ....................................................................................................4-30
4.3 Logic diagrams...............................................................................................4-30
4.4 FlexLogic design and monitoring using Engineer....................................4-32
4.4.1 Design logic...........................................................................................................................4-34
4.4.2 Send file to and from device .........................................................................................4-44
4.4.3 Monitor logic.........................................................................................................................4-45
4.4.4 View front panel and print labels................................................................................4-46
4.4.5 Generate connectivity report........................................................................................4-47
4.4.6 Preferences ...........................................................................................................................4-47
4.4.7 Toolbars ..................................................................................................................................4-51
5 SETTINGS 5.1 Settings menu .................................................................................................. 5-1
5.2 Overview ........................................................................................................... 5-4
5.2.1 Introduction to elements .................................................................................................. 5-4
5.2.2 Introduction to AC sources .............................................................................................. 5-5
5.3 Product setup................................................................................................... 5-7
5.3.1 Security ..................................................................................................................................... 5-7
5.3.2 Display properties ..............................................................................................................5-25
5.3.3 Clear relay records.............................................................................................................5-27
5.3.4 Communications ................................................................................................................5-28
5.3.5 Modbus user map ..............................................................................................................5-92
5.3.6 Real-time clock....................................................................................................................5-93
5.3.7 User-programmable fault report................................................................................5-97
5.3.8 Oscillography........................................................................................................................5-98
5.3.9 Data logger ........................................................................................................................5-100
5.3.10 User-programmable LEDs ..........................................................................................5-102
5.3.11 User-programmable self tests ..................................................................................5-105
5.3.12 Control pushbuttons......................................................................................................5-105
5.3.13 User-programmable pushbuttons..........................................................................5-107
5.3.14 Flex state parameters...................................................................................................5-111
5.3.15 User-definable displays................................................................................................5-112
5.3.16 Direct inputs and outputs............................................................................................5-114
5.3.17 Teleprotection...................................................................................................................5-120
5.3.18 Installation..........................................................................................................................5-121
5.4 Remote resources........................................................................................5-121
5.4.1 Remote resources configuration .............................................................................5-121
5.5 System setup................................................................................................5-123
5.5.1 AC inputs .............................................................................................................................5-123
5.5.2 Power system....................................................................................................................5-124
5.5.3 Signal sources...................................................................................................................5-125
5.5.4 Breakers...............................................................................................................................5-127
5.5.5 Disconnect switches......................................................................................................5-132
5.5.6 FlexCurves...........................................................................................................................5-135
5.6 FlexLogic........................................................................................................5-142
5.6.1 FlexLogic operands ........................................................................................................5-142
5.6.2 FlexLogic rules ..................................................................................................................5-155
5.6.3 FlexLogic evaluation ......................................................................................................5-155
5.6.4 FlexLogic example ..........................................................................................................5-156
5.6.5 FlexLogic equation editor............................................................................................5-161
5.6.6 FlexLogic timers ...............................................................................................................5-161
5.6.7 FlexElements......................................................................................................................5-161
5.6.8 Non-volatile latches .......................................................................................................5-165

vi C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
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5.7 Grouped elements .......................................................................................5-166
5.7.1 Overview ............................................................................................................................. 5-166
5.7.2 Setting group 1................................................................................................................. 5-166
5.7.3 Phase current ................................................................................................................... 5-167
5.7.4 Neutral current................................................................................................................. 5-182
5.7.5 Ground current ................................................................................................................ 5-194
5.7.6 Negative sequence current........................................................................................ 5-197
5.7.7 Breaker failure (ANSI 50BF)......................................................................................... 5-203
5.7.8 Voltage elements ............................................................................................................ 5-212
5.8 Control elements .........................................................................................5-229
5.8.1 Overview ............................................................................................................................. 5-229
5.8.2 Trip bus ................................................................................................................................ 5-229
5.8.3 Setting groups .................................................................................................................. 5-231
5.8.4 Selector switch................................................................................................................. 5-232
5.8.5 Time of day timers.......................................................................................................... 5-239
5.8.6 Capacitor control ............................................................................................................ 5-241
5.8.7 Automatic voltage regulator ..................................................................................... 5-245
5.8.8 Digital elements............................................................................................................... 5-249
5.8.9 Digital counters................................................................................................................ 5-252
5.8.10 Monitoring elements ..................................................................................................... 5-254
5.9 Inputs/outputs .............................................................................................5-270
5.9.1 Contact inputs.................................................................................................................. 5-270
5.9.2 Virtual inputs..................................................................................................................... 5-272
5.9.3 Contact outputs............................................................................................................... 5-273
5.9.4 Virtual outputs.................................................................................................................. 5-276
5.9.5 Resetting ............................................................................................................................. 5-276
5.9.6 Direct inputs and outputs ........................................................................................... 5-277
5.9.7 Teleprotection................................................................................................................... 5-280
5.10 Transducer inputs/outputs........................................................................5-282
5.10.1 DCmA inputs...................................................................................................................... 5-282
5.10.2 RTD inputs .......................................................................................................................... 5-283
5.10.3 DCmA outputs .................................................................................................................. 5-284
5.11 Testing ...........................................................................................................5-288
5.11.1 Test mode function ........................................................................................................5-288
5.11.2 Test mode forcing........................................................................................................... 5-288
5.11.3 Force contact inputs ..................................................................................................... 5-289
5.11.4 Force contact outputs .................................................................................................. 5-289
6 ACTUAL VALUES 6.1 Actual values menu......................................................................................... 6-1
6.2 Front panel........................................................................................................6-3
6.3 Status.................................................................................................................6-4
6.3.1 Contact inputs........................................................................................................................6-4
6.3.2 Virtual inputs...........................................................................................................................6-4
6.3.3 RxGOOSE boolean inputs ..................................................................................................6-4
6.3.4 RxGOOSE DPS inputs...........................................................................................................6-4
6.3.5 Teleprotection inputs ..........................................................................................................6-5
6.3.6 Contact outputs.....................................................................................................................6-5
6.3.7 Virtual outputs........................................................................................................................6-5
6.3.8 RxGOOSE status.....................................................................................................................6-6
6.3.9 RxGOOSE statistics...............................................................................................................6-6
6.3.10 Digital counters......................................................................................................................6-6
6.3.11 Selector switches ..................................................................................................................6-7
6.3.12 Time of day timers................................................................................................................6-7
6.3.13 Flex States ................................................................................................................................6-7

TABLE OF CONTENTS
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL vii
6.3.14 Ethernet .................................................................................................................................... 6-7
6.3.15 Real time clock synchronizing........................................................................................ 6-8
6.3.16 Direct inputs............................................................................................................................ 6-8
6.3.17 Direct devices status .......................................................................................................... 6-9
6.3.18 Teleprotection channel tests .......................................................................................... 6-9
6.3.19 Remaining connection status.......................................................................................6-10
6.3.20 Parallel Redundancy Protocol (PRP)...........................................................................6-10
6.3.21 TxGOOSE status ..................................................................................................................6-11
6.4 Metering ..........................................................................................................6-11
6.4.1 Metering conventions.......................................................................................................6-11
6.4.2 Sources....................................................................................................................................6-15
6.4.3 Capacitor control................................................................................................................6-19
6.4.4 Capacitor bank....................................................................................................................6-20
6.4.5 Tracking frequency............................................................................................................6-21
6.4.6 FlexElements.........................................................................................................................6-21
6.4.7 RxGOOSE analogs ..............................................................................................................6-22
6.4.8 Transducer inputs/outputs............................................................................................6-22
6.5 Records............................................................................................................6-22
6.5.1 User-programmable fault reports..............................................................................6-22
6.5.2 Event records .......................................................................................................................6-23
6.5.3 Oscillography........................................................................................................................6-23
6.5.4 Data logger ...........................................................................................................................6-24
6.5.5 Breaker maintenance.......................................................................................................6-24
6.6 Product information......................................................................................6-25
6.6.1 Model information..............................................................................................................6-25
6.6.2 Firmware revisions ............................................................................................................6-26
7 COMMANDS AND
TARGETS
7.1 Commands menu ............................................................................................ 7-1
7.1.1 Capacitor bank automatic setting ............................................................................... 7-2
7.1.2 Virtual inputs........................................................................................................................... 7-6
7.1.3 Clear records .......................................................................................................................... 7-6
7.1.4 Set date and time................................................................................................................. 7-7
7.1.5 Relay maintenance.............................................................................................................. 7-7
7.1.6 Security ..................................................................................................................................... 7-8
7.2 Targets menu ................................................................................................... 7-9
7.2.1 Target messages .................................................................................................................. 7-9
7.2.2 Relay self-tests ...................................................................................................................... 7-9
8 APPLICATION OF
SETTINGS
8.1 Arrangement of shunt capacitor banks...................................................... 8-1
8.1.1 Overview................................................................................................................................... 8-1
8.1.2 Externally fused capacitors ............................................................................................. 8-1
8.1.3 Internally fused capacitors .............................................................................................. 8-2
8.1.4 Fuseless capacitors............................................................................................................. 8-2
8.1.5 Unfused capacitors ............................................................................................................. 8-3
8.2 Connections of shunt capacitor banks........................................................ 8-3
8.2.1 Grounded wye-connected banks ................................................................................. 8-3
8.2.2 Ungrounded wye-connected banks............................................................................ 8-3
8.2.3 Delta connected banks......................................................................................................8-4
8.2.4 H-configuration..................................................................................................................... 8-4
8.2.5 Tapped configuration......................................................................................................... 8-4
8.2.6 Summary.................................................................................................................................. 8-4
8.3 Protection methods for capacitor banks .................................................... 8-5
8.3.1 Overview................................................................................................................................... 8-5
8.3.2 Capacitor unbalance protection................................................................................... 8-5

viii C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
8.3.3 Protection for rack faults (arc-over within capacitor banks).........................8-10
8.3.4 Overvoltage ..........................................................................................................................8-10
8.3.5 Overcurrent...........................................................................................................................8-11
8.3.6 Loss of bus voltage ...........................................................................................................8-11
8.4 Settings example ...........................................................................................8-11
8.4.1 Overview ................................................................................................................................8-11
8.4.2 VT and CT setup..................................................................................................................8-12
8.4.3 Source assignment ...........................................................................................................8-14
8.4.4 Bank unbalance calculations.......................................................................................8-14
8.4.5 Bank voltage differential settings ..............................................................................8-16
8.4.6 Bank phase current unbalance settings.................................................................8-18
8.4.7 Bank phase overvoltage settings...............................................................................8-19
8.4.8 Bank phase undervoltage settings............................................................................8-20
8.4.9 Bank overcurrent protection ........................................................................................8-21
9 THEORY OF
OPERATION
9.1 Overview ...........................................................................................................9-1
9.1.1 General operation.................................................................................................................9-1
9.1.2 Bank phase overvoltage (ANSI 59B).............................................................................9-1
9.1.3 Voltage differential (ANSI 87V)........................................................................................9-3
9.1.4 Compensated bank neutral voltage unbalance (ANSI 59NU)..........................9-7
9.1.5 Phase current unbalance (ANSI 60P) ........................................................................9-11
9.1.6 Neutral current unbalance (ANSI 60N).....................................................................9-14
10 MAINTENANCE 10.1 Monitoring.......................................................................................................10-1
10.1.1 Devices with Site Targets ...............................................................................................10-1
10.1.2 Data with Modbus Analyzer..........................................................................................10-1
10.2 General maintenance ...................................................................................10-3
10.2.1 In-service maintenance..................................................................................................10-3
10.2.2 Out-of-service maintenance ........................................................................................10-3
10.2.3 Unscheduled maintenance (system interruption) ..............................................10-3
10.3 Retrieve files ...................................................................................................10-3
10.3.1 CyberSentry security event files..................................................................................10-4
10.4 Copy settings to other device......................................................................10-5
10.5 Compare settings ..........................................................................................10-5
10.5.1 Compare against defaults.............................................................................................10-5
10.5.2 Compare two devices ......................................................................................................10-6
10.6 Back up and restore settings.......................................................................10-6
10.6.1 Back up settings .................................................................................................................10-7
10.6.2 Restore settings..................................................................................................................10-9
10.7 Upgrade software........................................................................................10-11
10.8 Upgrade firmware .......................................................................................10-12
10.9 Replace module............................................................................................10-13
10.10 Battery...........................................................................................................10-14
10.10.1 Replace battery for SH/SL power supply............................................................. 10-14
10.10.2 Dispose of battery .......................................................................................................... 10-15
10.11 Clear files and data after uninstall...........................................................10-19
10.12 Repairs...........................................................................................................10-19
10.13 Storage ..........................................................................................................10-20
10.14 Disposal.........................................................................................................10-20
AFLEXANALOG
OPERANDS
A.1 FlexAnalog items .............................................................................................A-1

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C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL ix
B RADIUS SERVER
CONFIGURATION
B.1 RADIUS server configuration .........................................................................B-1
C COMMAND LINE
INTERFACE
C.1 Command line interface .................................................................................C-1
D MISCELLANEOUS D.1 Warranty ...........................................................................................................D-1
D.2 Revision history ...............................................................................................D-1
ABBREVIATIONS
INDEX

x C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS