GE C70 Instruction Manual
Also see for C70: Communications manualCommunications guideInstruction manualInstruction manualInstruction manual
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Contents
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viii C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUALTABLE OF CONTENTS8.2.3 Delta connected banks ......................................................................................................8-48.2.4 H-configuration .....................................................................................................................8-48.2.5 Tapped configuration .........................................................................................................8-48.2.6 Summary...................................................................................................................................8-48.3 Protection methods for capacitor banks ...........................................................8-58.3.1 Overview ...................................................................................................................................8-58.3.2 Capacitor unbalance protection....................................................................................8-58.3.3 Protection for rack faults (arc-over within capacitor banks)......................... 8-108.3.4 Overvoltage .......................................................................................................................... 8-108.3.5 Overcurrent........................................................................................................................... 8-118.3.6 Loss of bus voltage ........................................................................................................... 8-118.4 Settings example ..................................................................................................8-118.4.1 Overview ................................................................................................................................ 8-118.4.2 VT and CT setup.................................................................................................................. 8-128.4.3 Source assignment ........................................................................................................... 8-148.4.4 Bank unbalance calculations....................................................................................... 8-148.4.5 Bank voltage differential settings .............................................................................. 8-168.4.6 Bank phase current unbalance settings................................................................. 8-188.4.7 Bank phase overvoltage settings............................................................................... 8-198.4.8 Bank phase undervoltage settings............................................................................ 8-208.4.9 Bank overcurrent protection ........................................................................................ 8-219 THEORY OFOPERATION9.1 Overview ..................................................................................................................9-19.1.1 General operation.................................................................................................................9-19.1.2 Bank phase overvoltage (ANSI 59B) .............................................................................9-19.1.3 Voltage differential (ANSI 87V) ........................................................................................9-39.1.4 Compensated bank neutral voltage unbalance (ANSI 59NU)..........................9-79.1.5 Phase current unbalance (ANSI 60P) ........................................................................ 9-119.1.6 Neutral current unbalance (ANSI 60N)..................................................................... 9-1410 MAINTENANCE 10.1 Monitoring .............................................................................................................10-110.1.1 Devices with Site Targets ............................................................................................... 10-110.1.2 Data with Modbus Analyzer.......................................................................................... 10-110.2 General maintenance ..........................................................................................10-310.2.1 In-service maintenance.................................................................................................. 10-310.2.2 Out-of-service maintenance ........................................................................................ 10-310.2.3 Unscheduled maintenance (system interruption) .............................................. 10-310.3 Retrieve files ..........................................................................................................10-310.3.1 CyberSentry security event files.................................................................................. 10-410.4 Convert device settings.......................................................................................10-510.5 Copy settings to other device ............................................................................10-710.6 Compare settings .................................................................................................10-710.6.1 Compare against defaults ............................................................................................. 10-710.6.2 Compare two devices ...................................................................................................... 10-810.7 Back up and restore settings .............................................................................10-810.7.1 Back up settings .................................................................................................................10-810.7.2 Restore settings ............................................................................................................... 10-1110.8 Upgrade software.............................................................................................. 10-1310.9 Upgrade firmware ............................................................................................. 10-1410.10 Replace front panel ........................................................................................... 10-1510.11 Replace module ................................................................................................. 10-2310.12 Battery................................................................................................................. 10-2410.12.1 Replace battery for SH/SL power supply............................................................. 10-2410.12.2 Dispose of battery .......................................................................................................... 10-25 |
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