2-2
C70 Capacitor Bank Protection and Control System
GE Multilin
2.1 INTRODUCTION
2 PRODUCT DESCRIPTION
2
Figure 2–1: SINGLE LINE DIAGRAM
Table 2–1: ANSI DEVICE NUMBERS AND FUNCTIONS
NUMBER
FUNCTION
NUMBER
FUNCTION
27P
Phase undervoltage
59B
Bank phase overvoltage
50BF
Breaker failure
59N
Neutral overvoltage
50DD
Disturbance detector
59NU
Neutral voltage unbalance
50G
Ground instantaneous overcurrent
59P
Phase overvoltage
50N
Neutral instantaneous overcurrent
59X
Auxiliary overvoltage
50P
Phase instantaneous overcurrent
59_2
Negative-sequence overvoltage
50_2
Negative-sequence instantaneous overcurrent
60N
Bank neutral current unbalance
51G
Ground time overcurrent
60P
Bank phase current unbalance
51N
Neutral time overcurrent
67N
Neutral directional overcurrent
51P
Phase time overcurrent
87V
Bank voltage differential
51_2
Negative-sequence time overcurrent
C70 Capacitor Bank Protection and Control Relay
52
Monitoring
CLOSE
TRIP
Metering
FlexElement
TM
Transducer
Inputs
50DD
51N(2)
50N(2)
87V
50BF(2)
51_2(2)
51P(2)
50_2(2)
50P(2)
27P(2)
59X
59N
59_2
25(2)
51G(2)
50G(2)
59NU
59B
60P(3)
60N(3)
S
59P
834010A1.CDR
Summary of Contents for UR Series C70
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Page 10: ...x C70 Capacitor Bank Protection and Control System GE Multilin TABLE OF CONTENTS ...
Page 344: ...5 220 C70 Capacitor Bank Protection and Control System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 586: ...D 10 C70 Capacitor Bank Protection and Control System GE Multilin D 1 OVERVIEW APPENDIXD D ...