GE UR Series C70 Instruction Manual page 32

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