GE Multilin
C70 Capacitor Bank Protection and Control System
vii
TABLE OF CONTENTS
8.3 ENERVISTA SECURITY MANAGEMENT SYSTEM
ENABLING THE SECURITY MANAGEMENT SYSTEM ................................. 8-15
MODIFYING USER PRIVILEGES ................................................................... 8-16
BANK PHASE OVERVOLTAGE (ANSI 59B) ..................................................... 9-1
VOLTAGE DIFFERENTIAL (ANSI 87V) ............................................................ 9-3
COMPENSATED BANK NEUTRAL VOLTAGE UNBALANCE (ANSI 59NU) .... 9-6
PHASE CURRENT UNBALANCE (ANSI 60P) ................................................ 9-10
NEUTRAL CURRENT UNBALANCE (ANSI 60N) ........................................... 9-12
10.1 ARRANGEMENT OF SHUNT CAPACITOR BANKS
EXTERNALLY FUSED CAPACITORS ............................................................ 10-1
INTERNALLY FUSED CAPACITORS ............................................................. 10-1
10.2 CONNECTIONS OF SHUNT CAPACITOR BANKS
GROUNDED WYE-CONNECTED BANKS ...................................................... 10-3
UNGROUNDED WYE-CONNECTED BANKS................................................. 10-3
DELTA-CONNECTED BANKS ........................................................................ 10-3
10.3 PROTECTION METHODS FOR CAPACITOR BANKS
CAPACITOR UNBALANCE PROTECTION..................................................... 10-5
PROTECTION FOR RACK FAULTS (ARC-OVER WITHIN CAPACITOR BANK) .
BANK UNBALANCE CALCULATIONS .......................................................... 10-14
BANK VOLTAGE DIFFERENTIAL SETTINGS .............................................. 10-16
BANK PHASE CURRENT UNBALANCE SETTINGS.................................... 10-18
BANK PHASE OVERVOLTAGE SETTINGS ................................................. 10-19
BANK PHASE UNDERVOLTAGE SETTINGS .............................................. 10-20
BANK OVERCURRENT PROTECTION ........................................................ 10-21
Summary of Contents for UR Series C70
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