GE Multilin
C70 Capacitor Bank Protection and Control System
5-151
5 SETTINGS
5.6 GROUPED ELEMENTS
5
Up to three identical voltage differential elements, one per each VT bank configured in hardware, are provided.
The element responds to a differential signal between magnitudes of the bus and tap voltages. The latter is scaled using a
matching factor to account for the position of the tap. An automatic setting procedure is available under the
COMMAND
menu to calculate automatically the matching factor when installing the relay or after repairs of the bank.
Figure 5–72: VOLTAGE DIFFERENTIAL BASIC CONNECTIONS
The function works with grounded and ungrounded banks. In the latter case, the neutral point voltage must be measured by
the relay. For additional information, refer to the
Theory of Operation
and
Application of Settings
chapters.
The following settings are available for each voltage differential element.
MESSAGE
VOLTAGE DIF 1 STG 3
PKP DELAY: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
VOLTAGE DIF 1 STG 4
PKP DELAY: 0.20 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
VOLTAGE DIF 1
DPO DELAY: 0.25 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
VOLT DIF 1 BLK STG1:
Off
Range: FlexLogic™ operand
MESSAGE
VOLT DIF 1 BLK STG 2:
Off
Range: FlexLogic™ operand
MESSAGE
VOLT DIF 1 BLK STG 3:
Off
Range: FlexLogic™ operand
MESSAGE
VOLT DIF 1 BLK STG 4:
Off
Range: FlexLogic™ operand
MESSAGE
VOLT DIF 1 TARGET:
Self-Reset
Range: Self-reset, Latched, Disabled
MESSAGE
VOLT DIF 1 EVENTS:
Disabled
Range: Disabled, Enabled
C70 CAPACITOR BANK RELAY
87V
BUS
SOURCE
TAP
SOURCE
Phase
VT bank
Aux VT
For ungrounded
banks only
Phase
VT bank
834738A1.CDR
Содержание UR Series C70
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Страница 10: ...x C70 Capacitor Bank Protection and Control System GE Multilin TABLE OF CONTENTS ...
Страница 30: ...1 20 C70 Capacitor Bank Protection and Control System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 124: ...4 30 C70 Capacitor Bank Protection and Control System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Страница 344: ...5 220 C70 Capacitor Bank Protection and Control System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 396: ...8 18 C70 Capacitor Bank Protection and Control System GE Multilin 8 3 ENERVISTA SECURITY MANAGEMENT SYSTEM 8 SECURITY 8 ...
Страница 414: ...9 18 C70 Capacitor Bank Protection and Control System GE Multilin 9 1 OVERVIEW 9 THEORY OF OPERATION 9 ...
Страница 436: ...10 22 C70 Capacitor Bank Protection and Control System GE Multilin 10 4 SETTING EXAMPLE 10 APPLICATION OF SETTINGS 10 ...
Страница 547: ...GE Multilin C70 Capacitor Bank Protection and Control System B 79 APPENDIX B B 4 MEMORY MAPPING B ...
Страница 548: ...B 80 C70 Capacitor Bank Protection and Control System GE Multilin B 4 MEMORY MAPPING APPENDIXB B ...
Страница 586: ...D 10 C70 Capacitor Bank Protection and Control System GE Multilin D 1 OVERVIEW APPENDIXD D ...
Страница 598: ...E 12 C70 Capacitor Bank Protection and Control System GE Multilin E 2 DNP POINT LISTS APPENDIXE E ...