GE G30 Instruction Manual
Also see for G30: Communications manualCommunications guideInstruction manualInstruction manualInstruction manual
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Contents
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viii G30 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUALTABLE OF CONTENTS7.1.3 Set date and time..................................................................................................................7-37.1.4 Relay maintenance ..............................................................................................................7-37.1.5 Security ......................................................................................................................................7-47.2 Targets menu ..........................................................................................................7-57.2.1 Target messages...................................................................................................................7-57.2.2 Relay self-tests .......................................................................................................................7-68 APPLICATION OFSETTINGS8.1 Overview ..................................................................................................................8-18.1.1 Introduction .............................................................................................................................8-18.1.2 In-zone transformer with VT on the high-voltage side .......................................8-18.1.3 In-zone transformer with VT on the low-voltage side .........................................8-38.1.4 No in-zone transformer .....................................................................................................8-48.2 Settings.....................................................................................................................8-68.2.1 System setup...........................................................................................................................8-68.2.2 Power system .........................................................................................................................8-78.2.3 Signal sources ........................................................................................................................8-78.2.4 Generator unbalance..........................................................................................................8-88.2.5 Loss of excitation ..................................................................................................................8-98.2.6 Reverse power..................................................................................................................... 8-108.2.7 System backup overcurrent.......................................................................................... 8-108.2.8 Overexcitation ..................................................................................................................... 8-128.2.9 Inputs/outputs..................................................................................................................... 8-128.2.10 Frequency.............................................................................................................................. 8-138.2.11 Accidental energization .................................................................................................. 8-148.2.12 FlexLogic ................................................................................................................................ 8-149 COMMISSIONING 9.1 Testing ......................................................................................................................9-19.1.1 Testing underfrequency and overfrequency elements.......................................9-110 THEORY OFOPERATION10.1 Directional principle.............................................................................................10-110.1.1 Current directional protection .....................................................................................10-110.2 Saturation detector..............................................................................................10-210.2.1 CT saturation detection................................................................................................... 10-211 MAINTENANCE 11.1 Monitoring .............................................................................................................11-111.1.1 Devices with Site Targets ............................................................................................... 11-111.1.2 Data with Modbus Analyzer.......................................................................................... 11-111.2 General maintenance ..........................................................................................11-311.2.1 In-service maintenance.................................................................................................. 11-311.2.2 Out-of-service maintenance ........................................................................................ 11-311.2.3 Unscheduled maintenance (system interruption) .............................................. 11-311.3 Retrieve files ..........................................................................................................11-311.3.1 CyberSentry security event files.................................................................................. 11-411.4 Convert device settings.......................................................................................11-511.5 Copy settings to other device ............................................................................11-711.6 Copy settings to other device ............................................................................11-711.7 Compare settings .................................................................................................11-711.7.1 Compare against defaults ............................................................................................. 11-811.7.2 Compare two devices ...................................................................................................... 11-811.8 Back up and restore settings .............................................................................11-911.8.1 Back up settings .................................................................................................................11-911.8.2 Restore settings ............................................................................................................... 11-11 |
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