GEK-113285A
G650 Generator Protection & Control System
2-3
2 PRODUCT DESCRIPTION
2.2 SUMMARY
2
2.2SUMMARY
2.2.1 ANSI DEVICE NUMBERS AND FUNCTIONS
DEVICE NUMBER FUNCTION
24
Volt/Hertz
(only enhanced model)
25
Synchronism Check
27P
Phase Undervoltage
27X
Auxiliary Undervoltage
32DIR
Directional Power
40
Loss of Excitation
46
Generator Unbalance
47
Negative Sequence Overvoltage
49S
Generator thermal model
50/27
Inadvertent Generator Energization
50-2/51-2
Negative Sequence IOC/TOC
50BF
Breaker Failure (
only enhanced model
)
50G
Ground Instantaneous Overcurrent (measured from 4
th
current transformer)
50N
Neutral Instantaneous Overcurrent (calculated from the phase currents)
50P
Phase Instantaneous Overcurrent
51G
Ground Time Overcurrent (measured from 4
th
current transformer)
51N
Neutral Time Overcurrent (calculated from the phase currents)
51P/V
Voltage Restraint Overcurrent
50SG/51SG
Sensitive Ground Fault
(only enhanced model)
55
Power Factor Limiting (
Only enhanced model
)
59N
Neutral Overvoltage
59P
Phase Overvoltage
59X
Auxiliary Overvoltage
59G
Ground Overvoltage
67N
Neutral directional
67G
Ground Directional
78V
Phase shift / Loss of mains
(only enhanced model)
810
Overfrequency
81U
Underfrequency
81R
Frequency Rate of Change
87G
Restricted Ground Fault
(only enhanced model)
VTFF
VT Fuse Failure
(only enhanced model)
Summary of Contents for Multilin G650
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Page 426: ...GEK 113285A G650 Generator Protection Control System A 31 APPENDIX A A 1 LOGIC OPERANDS A ...
Page 427: ...A 32 G650 Generator Protection Control System GEK 113285A A 1 LOGIC OPERANDS APPENDIXA A ...
Page 587: ...C 22 G650 Generator Protection Control System GEK 113285A C 8 ANALOG INPUTS APPENDIXC C ...
Page 639: ...G 2 G650 Generator Protection Control System GEK 113285A G 1 GE MULTILIN WARRANTY APPENDIXG G ...