GE C70 Instruction Manual page 34

2.1 INTRODUCTION
Table 2–1: ANSI DEVICE NUMBERS AND FUNCTIONS
NUMBER FUNCTION
27P Phase undervoltage
50BF Breaker failure
50DD Disturbance detector
2
50G Ground instantaneous overcurrent
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
59B Bank phase overvoltage
Table 2–2: OTHER DEVICE FUNCTIONS
FUNCTION
Breaker control
Breaker flashover
Breaker restrike
Capacitor control supervision
Contact inputs (up to 96)
Contact outputs (up to 64)
Control pushbuttons
CyberSentry™ security
2-2
NUMBER
59N
59NU
59P
59X
59_2
60N
60P
67N
67P
67_2
87V
Figure 2–1: SINGLE LINE DIAGRAM
FUNCTION
Direct inputs and outputs (32)
Event recorder
FlexElements™ (16)
FlexLogic equations
Frequency metering
IEC 61850 communications (optional)
Modbus communications
Modbus user map
C70 Capacitor Bank Protection and Control System
2 PRODUCT DESCRIPTION
FUNCTION
Neutral overvoltage
Neutral voltage unbalance
Phase overvoltage
Auxiliary overvoltage
Negative-sequence overvoltage
Bank neutral current unbalance
Bank phase current unbalance
Neutral directional overcurrent
Phase directional overcurrent
Negative-sequence directional overcurrent
Bank voltage differential
FUNCTION
Time synchronization over IRIG-B or
IEEE 1588
Time synchronization over SNTP
Transducer inputs and outputs
User-definable displays
User-programmable fault reports
User-programmable LEDs
User-programmable pushbuttons
User-programmable self-tests
GE Multilin