GE C70 Instruction Manual page 7

9. APPLICATION OF
SETTINGS
10. MAINTENANCE
A. FLEXANALOG AND
FLEXINTEGER
PARAMETERS
B. MODBUS
COMMUNICATIONS
GE Multilin
TABLE OF CONTENTS
9.1 ARRANGEMENT OF SHUNT CAPACITOR BANKS
9.1.1 OVERVIEW........................................................................................................ 9-1
9.1.2 EXTERNALLY FUSED CAPACITORS .............................................................. 9-1
9.1.3 INTERNALLY FUSED CAPACITORS ............................................................... 9-1
9.1.4 FUSELESS CAPACITORS ................................................................................ 9-2
9.1.5 UNFUSED CAPACITORS ................................................................................. 9-2
9.2 CONNECTIONS OF SHUNT CAPACITOR BANKS
9.2.1 GROUNDED WYE-CONNECTED BANKS ........................................................ 9-3
9.2.2 UNGROUNDED WYE-CONNECTED BANKS................................................... 9-3
9.2.3 DELTA-CONNECTED BANKS .......................................................................... 9-3
9.2.4 H-CONFIGURATION ......................................................................................... 9-3
9.2.5 TAPPED CONFIGURATION.............................................................................. 9-3
9.2.6 SUMMARY......................................................................................................... 9-4
9.3 PROTECTION METHODS FOR CAPACITOR BANKS
9.3.1 DESCRIPTION................................................................................................... 9-5
9.3.2 CAPACITOR UNBALANCE PROTECTION....................................................... 9-5
9.3.3 PROTECTION FOR RACK FAULTS
(ARC-OVER WITHIN CAPACITOR BANK) ..................................................... 9-10
9.3.4 OVERVOLTAGE .............................................................................................. 9-10
9.3.5 OVERCURRENT ............................................................................................. 9-11
9.3.6 LOSS OF BUS VOLTAGE ............................................................................... 9-11
9.4 SETTING EXAMPLE
9.4.1 DESCRIPTION................................................................................................. 9-12
9.4.2 VT AND CT SETUP ......................................................................................... 9-12
9.4.3 SOURCE ASSIGNMENT ................................................................................. 9-13
9.4.4 BANK UNBALANCE CALCULATIONS ............................................................ 9-14
9.4.5 BANK VOLTAGE DIFFERENTIAL SETTINGS ................................................ 9-16
9.4.6 BANK PHASE CURRENT UNBALANCE SETTINGS...................................... 9-18
9.4.7 BANK PHASE OVERVOLTAGE SETTINGS ................................................... 9-19
9.4.8 BANK PHASE UNDERVOLTAGE SETTINGS ................................................ 9-20
9.4.9 BANK OVERCURRENT PROTECTION .......................................................... 9-21
10.1 MODULES
10.1.1 REPLACE A MODULE..................................................................................... 10-1
10.2 BATTERIES
10.2.1 REPLACE BATTERY....................................................................................... 10-3
10.2.2 DISPOSE OF BATTERY.................................................................................. 10-5
10.3 UNINSTALL AND CLEAR FILES AND DATA
10.3.1 UNINSTALL AND CLEAR FILES AND DATA.................................................. 10-8
10.4 REPAIRS
10.4.1 REPAIRS ......................................................................................................... 10-9
10.5 STORAGE
10.5.1 STORAGE...................................................................................................... 10-10
10.6 DISPOSAL
10.6.1 DISPOSAL ..................................................................................................... 10-11
A.1 PARAMETER LISTS
A.1.1 FLEXANALOG ITEMS .......................................................................................A-1
A.1.2 FLEXINTEGER ITEMS ....................................................................................A-34
B.1 MODBUS RTU PROTOCOL
B.1.1 INTRODUCTION................................................................................................B-1
B.1.2 PHYSICAL LAYER.............................................................................................B-1
C70 Capacitor Bank Protection and Control System vii