GE C70 User manual

GE
Digital Energy
Instruction Manual
Product version: 7.3x
GE publication code: 1601-9015-AB2 (GEK-119614A)
C70
Capacitor Bank Protection
and Control System
1601-9015-AB2
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Copyright © 2015 GE Multilin Inc. All rights reserved.
C70 Capacitor Bank Protection and Control System Instruction Manual for version 7.3x.
C70, FlexLogic, FlexElement, FlexCurve, FlexAnalog, FlexInteger, FlexState, EnerVista,
CyberSentry, HardFiber, Digital Energy, 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-AB2 (September 2015)

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 ...........................................................................................2-15
2.4.1 UR signal processing ..........................................................................................................2-15
2.5 Specifications..................................................................................................2-17
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 Environmental........................................................................................................................2-31
2.5.11 Type tests.................................................................................................................................2-32
2.5.12 Production tests....................................................................................................................2-32
2.5.13 Approvals .................................................................................................................................2-33
2.5.14 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
3.3 Wiring ................................................................................................................. 3-9

iv C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
3.3.1 Typical wiring............................................................................................................................3-9
3.3.2 Dielectric strength ...............................................................................................................3-10
3.3.3 Control power........................................................................................................................3-10
3.3.4 CT/VT modules ......................................................................................................................3-11
3.3.5 Process bus modules .........................................................................................................3-13
3.3.6 Contact inputs and outputs............................................................................................3-13
3.3.7 Transducer inputs and outputs.....................................................................................3-20
3.3.8 RS232 faceplate port..........................................................................................................3-22
3.3.9 CPU communication ports ..............................................................................................3-22
3.3.10 IRIG-B.........................................................................................................................................3-24
3.4 Direct input and output communications .................................................3-25
3.4.1 Description..............................................................................................................................3-25
3.4.2 Fiber: LED and ELED transmitters.................................................................................3-27
3.4.3 G.703 interface......................................................................................................................3-27
3.4.4 RS422 interface.....................................................................................................................3-31
3.4.5 IEEE C37.94 interface .........................................................................................................3-33
3.5 Activate relay ..................................................................................................3-36
3.6 Install software...............................................................................................3-37
3.6.1 EnerVista communication overview ...........................................................................3-37
3.6.2 System requirements.........................................................................................................3-38
3.6.3 Install software .....................................................................................................................3-38
3.7 Configure the C70 for software access ......................................................3-39
3.7.1 Configure serial communication..................................................................................3-40
3.7.2 Configure Ethernet communication ...........................................................................3-41
3.7.3 Automatic discovery of UR devices.............................................................................3-42
3.8 Connect to the C70.........................................................................................3-42
3.8.1 Connect to the C70 in EnerVista ...................................................................................3-42
3.8.2 Use Quick Connect via the front panel RS232 port .............................................3-43
3.8.3 Use Quick Connect via a rear Ethernet port............................................................3-44
3.9 Set up CyberSentry and change default password..................................3-49
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 ................................................................................................................................4-2
4.1.5 EnerVista main window .......................................................................................................4-2
4.1.6 Settings templates .................................................................................................................4-3
4.1.7 Secure and lock FlexLogic equations............................................................................4-8
4.1.8 Settings file traceability.....................................................................................................4-10
4.2 Front panel interface .....................................................................................4-12
4.2.1 Front panel display..............................................................................................................4-12
4.2.2 Front panel keypad.............................................................................................................4-12
4.2.3 Menu navigation ..................................................................................................................4-13
4.2.4 Menu hierarchy.....................................................................................................................4-13
4.2.5 Changing settings................................................................................................................4-14
4.2.6 Faceplate.................................................................................................................................4-15
4.2.7 LED indicators........................................................................................................................4-17
4.2.8 Custom LED labeling ..........................................................................................................4-20
4.2.9 Breaker control .....................................................................................................................4-25
4.2.10 Change passwords .............................................................................................................4-26
4.2.11 Invalid password entry......................................................................................................4-27
4.3 Logic diagrams ...............................................................................................4-28

TABLE OF CONTENTS
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL v
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 ..................................................................................................................5-27
5.3.5 Modbus user map ................................................................................................................5-82
5.3.6 Real-time clock......................................................................................................................5-82
5.3.7 User-programmable fault report..................................................................................5-86
5.3.8 Oscillography .........................................................................................................................5-87
5.3.9 Data logger .............................................................................................................................5-89
5.3.10 User-programmable LEDs ...............................................................................................5-90
5.3.11 User-programmable self tests.......................................................................................5-94
5.3.12 Control pushbuttons...........................................................................................................5-94
5.3.13 User-programmable pushbuttons...............................................................................5-96
5.3.14 Flex state parameters.....................................................................................................5-101
5.3.15 User-definable displays..................................................................................................5-102
5.3.16 Direct inputs and outputs..............................................................................................5-104
5.3.17 Installation............................................................................................................................5-111
5.4 Remote resources ........................................................................................5-111
5.4.1 Remote resources configuration ...............................................................................5-111
5.5 System setup.................................................................................................5-112
5.5.1 AC inputs ...............................................................................................................................5-112
5.5.2 Power system......................................................................................................................5-114
5.5.3 Signal sources.....................................................................................................................5-114
5.5.4 Breakers.................................................................................................................................5-117
5.5.5 Disconnect switches........................................................................................................5-122
5.5.6 FlexCurves ............................................................................................................................5-125
5.6 FlexLogic ........................................................................................................5-132
5.6.1 FlexLogic operands ..........................................................................................................5-132
5.6.2 FlexLogic rules ....................................................................................................................5-145
5.6.3 FlexLogic evaluation ........................................................................................................5-145
5.6.4 FlexLogic example ............................................................................................................5-146
5.6.5 FlexLogic equation editor..............................................................................................5-151
5.6.6 FlexLogic timers .................................................................................................................5-151
5.6.7 FlexElements .......................................................................................................................5-151
5.6.8 Non-volatile latches .........................................................................................................5-155
5.7 Grouped elements........................................................................................5-156
5.7.1 Overview................................................................................................................................5-156
5.7.2 Setting group 1...................................................................................................................5-156
5.7.3 Phase current......................................................................................................................5-157
5.7.4 Neutral current...................................................................................................................5-171
5.7.5 Ground current...................................................................................................................5-183
5.7.6 Negative sequence current..........................................................................................5-185
5.7.7 Breaker failure (ANSI 50BF)...........................................................................................5-191
5.7.8 Voltage elements...............................................................................................................5-200
5.8 Control elements..........................................................................................5-217
5.8.1 Overview................................................................................................................................5-217
5.8.2 Trip bus...................................................................................................................................5-217
5.8.3 Setting groups.....................................................................................................................5-219
5.8.4 Selector switch ...................................................................................................................5-220
5.8.5 Time of day timers ............................................................................................................5-227

vi C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
5.8.6 Capacitor control .............................................................................................................. 5-228
5.8.7 Automatic voltage regulator ....................................................................................... 5-233
5.8.8 Digital elements................................................................................................................. 5-237
5.8.9 Digital counters.................................................................................................................. 5-240
5.8.10 Monitoring elements .......................................................................................................5-242
5.9 Inputs/outputs ..............................................................................................5-254
5.9.1 Contact inputs.................................................................................................................... 5-254
5.9.2 Virtual inputs....................................................................................................................... 5-256
5.9.3 Contact outputs................................................................................................................. 5-257
5.9.4 Virtual outputs.................................................................................................................... 5-260
5.9.5 Resetting ............................................................................................................................... 5-260
5.9.6 Direct inputs and outputs ............................................................................................. 5-261
5.10 Transducer inputs/outputs.........................................................................5-265
5.10.1 DCmA inputs ....................................................................................................................... 5-265
5.10.2 RTD inputs ............................................................................................................................ 5-266
5.10.3 DCmA outputs .................................................................................................................... 5-267
5.11 Testing............................................................................................................5-270
5.11.1 Test mode function .......................................................................................................... 5-270
5.11.2 Test mode forcing............................................................................................................. 5-271
5.11.3 Force contact inputs ....................................................................................................... 5-272
5.11.4 Force contact outputs .................................................................................................... 5-272
6 ACTUAL VALUES 6.1 Actual values menu.......................................................................................... 6-1
6.2 Status..................................................................................................................6-3
6.2.1 Contact inputs..........................................................................................................................6-3
6.2.2 Virtual inputs.............................................................................................................................6-3
6.2.3 RxGOOSE boolean inputs ....................................................................................................6-3
6.2.4 RxGOOSE DPS inputs.............................................................................................................6-4
6.2.5 Contact outputs.......................................................................................................................6-4
6.2.6 Virtual outputs..........................................................................................................................6-4
6.2.7 RxGOOSE status.......................................................................................................................6-4
6.2.8 RxGOOSE statistics.................................................................................................................6-5
6.2.9 Digital counters........................................................................................................................6-5
6.2.10 Selector switches ....................................................................................................................6-5
6.2.11 Time of day timers..................................................................................................................6-6
6.2.12 Flex States ..................................................................................................................................6-6
6.2.13 Ethernet.......................................................................................................................................6-6
6.2.14 Real time clock synchronizing ..........................................................................................6-6
6.2.15 Direct inputs ..............................................................................................................................6-7
6.2.16 Direct devices status.............................................................................................................6-8
6.2.17 Remaining connection status ...........................................................................................6-8
6.2.18 Parallel Redundancy Protocol (PRP) ...............................................................................6-9
6.3 Metering.............................................................................................................6-9
6.3.1 Metering conventions...........................................................................................................6-9
6.3.2 Sources.....................................................................................................................................6-13
6.3.3 Capacitor control .................................................................................................................6-17
6.3.4 Capacitor bank......................................................................................................................6-18
6.3.5 Tracking frequency .............................................................................................................6-19
6.3.6 FlexElements..........................................................................................................................6-19
6.3.7 RxGOOSE analogs................................................................................................................6-19
6.3.8 Transducer inputs/outputs..............................................................................................6-20
6.4 Records.............................................................................................................6-20
6.4.1 User-programmable fault reports ............................................................................... 6-20
6.4.2 Event records.........................................................................................................................6-20
6.4.3 Oscillography.........................................................................................................................6-21

TABLE OF CONTENTS
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL vii
6.4.4 Data logger .............................................................................................................................6-21
6.5 Product information ......................................................................................6-22
6.5.1 Model information................................................................................................................6-22
6.5.2 Firmware revisions ..............................................................................................................6-22
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
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..............................................................................................................8-13
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)...........................................................................9-10

viii C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
9.1.6 Neutral current unbalance (ANSI 60N).......................................................................9-13
10 MAINTENANCE 10.1 General maintenance ....................................................................................10-1
10.1.1 In-service maintenance....................................................................................................10-1
10.1.2 Out-of-service maintenance ..........................................................................................10-1
10.1.3 Unscheduled maintenance (system interruption) ................................................10-2
10.2 Back up and restore settings .......................................................................10-2
10.2.1 Back up settings...................................................................................................................10-2
10.2.2 Restore settings....................................................................................................................10-3
10.3 Upgrade firmware ..........................................................................................10-4
10.4 Upgrade software...........................................................................................10-5
10.5 Replace module ..............................................................................................10-6
10.6 Battery..............................................................................................................10-7
10.6.1 Replace battery for RH/RL power supply .................................................................10-7
10.6.2 Replace battery for SH/SL power supply..................................................................10-8
10.6.3 Dispose of battery ...............................................................................................................10-9
10.7 Clear files and data after uninstall ...........................................................10-12
10.8 Repairs............................................................................................................10-13
10.9 Storage ...........................................................................................................10-13
10.10Disposal..........................................................................................................10-13
AFLEXANALOG
OPERANDS
A.1 FlexAnalog items .............................................................................................A-1
B RADIUS SERVER
CONFIGURATION
B.1 RADIUS server configuration .........................................................................B-1
C MISCELLANEOUS C.1 Warranty ...........................................................................................................C-1
C.2 Revision history ................................................................................................C-1
ABBREVIATIONS
INDEX

C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 1-1
C70 Capacitor Bank Protection and Control System
Chapter 1: Introduction
Introduction
This chapter outlines safety and technical support information.
1.1 Safety symbols and definitions
Before attempting to install or use the device, review all safety indicators in this document to help prevent injury,
equipment damage, or downtime.
The following safety and equipment symbols are used in this document.
1.1.1 General cautions and warnings
The following general safety precautions and warnings apply.
Follow the requirements of this manual, including adequate wiring size and type, terminal torque settings, voltage,
current magnitudes applied, and adequate isolation/clearance in external wiring from high to low voltage circuits.
Use the device only for its intended purpose and application.
Ensure that all ground paths are uncompromised for safety purposes during device operation and service.
Ensure that the control power applied to the device, the AC current, and voltage input match the ratings specified on
the relay nameplate. Do not apply current or voltage in excess of the specified limits.
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates practices not related to personal injury.
DANGER
Ensure that all connections to the product are correct so as to avoid accidental risk of shock
and/or fire, for example such as can arise from high voltage connected to low voltage terminals.

1-2 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION
1
Only qualified personnel are to operate the device. Such personnel must be thoroughly familiar with all safety
cautions and warnings in this manual and with applicable country, regional, utility, and plant safety regulations.
Hazardous voltages can exist in the power supply and at the device connection to current transformers, voltage
transformers, control, and test circuit terminals. Make sure all sources of such voltages are isolated prior to
attempting work on the device.
Hazardous voltages can exist when opening the secondary circuits of live current transformers. Make sure that
current transformer secondary circuits are shorted out before making or removing any connection to the current
transformer (CT) input terminals of the device.
For tests with secondary test equipment, ensure that no other sources of voltages or currents are connected to such
equipment and that trip and close commands to the circuit breakers or other switching apparatus are isolated,
unless this is required by the test procedure and is specified by appropriate utility/plant procedure.
When the device is used to control primary equipment, such as circuit breakers, isolators, and other switching
apparatus, all control circuits from the device to the primary equipment must be isolated while personnel are
working on or around this primary equipment to prevent any inadvertent command from this device.
Use an external disconnect to isolate the mains voltage supply.
1.2 For further assistance
For product support, contact the information and call center as follows:
GE Digital Energy
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Worldwide telephone: [phone]
Europe/Middle East/Africa telephone: [phone]
North America toll-free: 1 800 547 8629
Fax: [phone]
Worldwide e-mail: multilin.t[email protected]
Europe e-mail: multilin.tech.[email protected]
Website: http://www.gedigitalenergy.com/multilin
CAUTION
LED transmitters are classified as IEC 60825-1 Accessible Emission Limit (AEL) Class 1M. Class 1M
devices are considered safe to the unaided eye. Do not view directly with optical instruments.
NOTICE
This product is rated to Class A emissions levels and is to be used in Utility, Substation Industrial
environments. Not to be used near electronic devices rated for Class B levels.