GE G60 Instruction Manual page 38

SPECIFICATIONS
Reset delay:
Curve timing accuracy at >1.1 pickup: ±3.5% of operate time or ±1 cycle (whichever is greater) from pickup to operate
Operate time:
AUXILIARY OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
2
Pickup delay:
Reset delay:
Timer accuracy:
Operate time:
Operate time when 20 Hz injection is performed: 8 power system cycles
NEGATIVE SEQUENCE OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Timer accuracy:
Operate time:
VOLTS PER HERTZ
Voltage:
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Timing curves:
TD Multiplier:
Reset delay:
Timer accuracy:
100% STATOR GROUND
Operating quantity:
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
3rd harmonic supervision level:
Timer accuracy:
Operate time:
SUB-HARMONIC STATOR GROUND
Stator ground resistance pickup accuracy: ±5% of reading from 1 to 10 kΩ, ±10% of reading from 10 to 20 kΩ
Total stator capacitance to ground:
Sub-harmonic voltage metering accuracy: ±2% of reading or 0.2 V from 0.5 to 25 V AC
Sub-harmonic current metering accuracy: ±2% of reading or 5 mA from 5 to 200 mA
Sub-harmonic element operating time: 0.6 to 1.2 s
Sub-harmonic element dropout level accuracy:102 to 103% of pickup
Time delay accuracy:
2-24
0.00 to 600.00 s in steps of 0.01
<30 ms at 1.10 pickup at 60 Hz
0.004 to 3.000 pu in steps of 0.001
97 to 98% of pickup
±0.5% of reading from 10 to 208 V
0 to 600.00 s in steps of 0.01
0 to 600.00 s in steps of 0.01
±3% of operate time or ±1/4 cycle (whichever is greater)
<30 ms at 1.10 × pickup at 60 Hz
0.004 to 1.250 pu in steps of 0.001
97 to 98% of pickup
±0.5% of reading from 10 to 208 V
0 to 600.00 s in steps of 0.01
0 to 600.00 s in steps of 0.01
±3% of operate time or ±20 ms, whichever is greater
<30 ms at 1.10 × pickup at 60 Hz
Phasor only
0.80 to 4.00 in steps of 0.01 pu V/Hz
97 to 98% of pickup
±0.02 pu
0 to 600.00 s in steps of 0.01
Definite Time; Inverse A, B, and C, FlexCurves™ A, B, C, and D
0.05 to 600.00 s in steps of 0.01
0.0 to 1000.0 s in steps of 0.1
±3% of operate time or ±3 cycles (whichever is greater) for values greater than 1.1 × pickup
0.000 to 0.900 pu in steps of 0.001
97 to 98% of pickup
±2% of reading from 1 to 120 V
0 to 600.00 s in steps of 0.01
0.0010 to 0.1000 pu in steps of 0.0001
±3% of operate time or ±20 ms, whichever is greater
<30 ms at 1.10 × pickup at 60 Hz
200 nF to 2 μF
±3% of time delay setting or ± 4 ms, whichever is greater
CHAPTER 2: PRODUCT DESCRIPTION
G60 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL