GE L60 Instruction Manual page 27

2 PRODUCT DESCRIPTION
Table 2–1: ANSI DEVICE NUMBERS AND FUNCTIONS
DEVICE FUNCTION
NUMBER
21G Ground Distance
21P Phase Distance
25 Synchrocheck
27P Phase Undervoltage
27X Auxiliary Undervoltage
50BF Breaker Failure
50DD Disturbance Detector
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
52
79
Monitoring
50_2(2)
50DD 50P(2)
Data From/To Remote End
(via Communications)
L60
Line Phase Comparison Relay
GE Multilin
DEVICE
NUMBER
51P
51_2
52
59N
59P
59X
67N
67P
67_2
68
78
79
87PC
CLOSE TRIP
51_2(2)
51P(2) 50BF(2) 87PC 21P 67N/G
50G(2) 51G(2)
Figure 2–2: SINGLE LINE DIAGRAM
L60 Line Phase Comparison Relay
FUNCTION
Phase Time Overcurrent
Negative Sequence Time Overcurrent
AC Circuit Breaker
Neutral Overvoltage
Phase Overvoltage
Auxiliary Overvoltage
Neutral Directional Overcurrent
Phase Directional Overcurrent
Negative Sequence Directional Overcurrent
Power Swing Blocking
Out-of-step Tripping
Automatic Recloser
Phase Comparison
68 78
67_2(2) 50N(2)
Transducer
Metering
TM
FlexElement
59X
2.1 INTRODUCTION
2
51N(2) 67P 21G
27P(2)
Inputs
59P
59N
27X
25(2)
831707AS.CDR
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