GE Multilin G650 Manual page 42

2 PRODUCT DESCRIPTION
2.4.1.13 GENERATOR THERMAL MODEL (49S)
Current Input
Rated current
Pickup level
Dropout level
Level Accuracy
Timing accuracy
Heating constant
Cooling constant
K1 constant
Snapshot Events
2.4.1.14 RESTRICTED GROUND FAULT (87G)
Pickup level
Dropout level
Slope
Trip delay
Operate time
Timing accuracy
Snapshot Events
2.4.1.15 PHASE OVERVOLTAGE (59P)
Voltage Input
Pickup level
Dropout level
Level Accuracy
Trip delay
Reset delay
Timing accuracy
Logic
Snapshot Events
GEK-113285A
Fundamental Phasor (without harmonics)
For connection to 1 or 5 A CTs.
0.05 to 160.0 A in steps of 0.01 A
97% to 98% of the pickup level
Values at nominal frequency:
±0.5% of the reading ± 10 mA from 0.05 to 10 A
±1.5% of the reading for higher values
±3.5% of operate time or 50 ms. (whichever is greater)
3.0 to 600.0 minutes in steps of 0.1 minute
1.00 to 6.00 times the heating constant in steps of 0.01
0.0 to 8.0 in steps of 0.1 (Negative sequence influence)
Selectable by setting
0.02 to 20.00 in units of Phase CT Primary in steps of
0.01
97% to 98 % of the pickup level
0.00 to 100.00 % in steps of 0.01%
0.00 to 600.00 s in steps of 0.01 s
<50 ms at 50 Hz, typically
±3% of operate time or 50 ms. (whichever is greater)
Selectable by setting
Fundamental Phasor (without harmonics) of phase-to-
phase voltages
3 to 500 in steps of 1 V
97% to 98% of the pickup level
±1% reading ±0.1% Full Scale from 10 to 500 V at
nominal frequency
0.00 to 900.00 s. in steps of 0.01 s.
0.00 to 900.00 s. in steps of 0.01 s.
±3.5% of operate time or 50 ms. (whichever is greater)
Any/Two/All phases logic selectable by setting
Selectable by setting
G650 Generator Protection & Control System
2.4 TECHNICAL SPECIFICATIONS
2
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