GE G60

GE Multilin G60 Generator Protection System 2-17
2 PRODUCT DESCRIPTION 2.2 SPECIFICATIONS
2
PHASE UNDERVOLTAGE
Pickup level: 0.000 to 3.000 pu in steps of 0.001
Dropout level: 102 to 103% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Curve shapes: GE IAV Inverse;
Definite Time (0.1s base curve)
Curve multiplier: Time dial = 0.00 to 600.00 in steps of
0.01
Curve timing accuracy
at <0.90 x pickup: ±3.5% of operate time or ±1/2 cycle
(whichever is greater) from pickup to
operate
AUXILIARY UNDERVOLTAGE
Pickup level: 0.000 to 3.000 pu in steps of 0.001
Dropout level: 102 to 103% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Curve shapes: GE IAV Inverse, Definite Time
Curve multiplier: Time Dial = 0 to 600.00 in steps of 0.01
Curve timing accuracy
at <0.90 x pickup: ±3.5% of operate time or ±1/2 cycle
(whichever is greater) from pickup to
operate
THIRD HARMONIC NEUTRAL UNDERVOLTAGE
Operating quantity: 3rd harmonic of auxiliary undervoltage
Undervoltage:
Pickup level: 0.000 to 3.000 pu in steps of 0.001
Dropout level: 102 to 103% of pickup
Accuracy: ±2% of reading from 1 to 120 V
Power:
Pickup level: 0.000 to 1.200 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Accuracy: ±5% or ±0.01 pu, whichever is greater
Undervoltage Inhibit
Level: 0.000 to 3.000 pu in steps of 0.001 pu
Accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0 to 600.00 s in steps of 0.01
Timer accuracy: ±3% of operate time or ±20 ms, which-
ever is greater
Operate time: <30 ms at 0.9 × pickup at 60 Hz
PHASE OVERVOLTAGE
Voltage: Phasor only
Pickup level: 0.000 to 3.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0.00 to 600.00 in steps of 0.01 s
Operate time: <30 ms at 1.10 × pickup at 60 Hz
Timer accuracy: ±3% of operate time or ±1/4 cycle
(whichever is greater)
NEUTRAL OVERVOLTAGE
Pickup level: 0.000 to 3.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0.00 to 600.00 s in steps of 0.01 (definite
time) or user-defined curve
Reset delay: 0.00 to 600.00 s in steps of 0.01
Curve timing accuracy
at >1.1 x pickup: ±3.5% of operate time or ±1 cycle
(whichever is greater) from pickup to
operate
Operate time: <30 ms at 1.10 × pickup at 60 Hz
AUXILIARY OVERVOLTAGE
Pickup level: 0.000 to 3.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0 to 600.00 s in steps of 0.01
Reset delay: 0 to 600.00 s in steps of 0.01
Timer accuracy: ±3% of operate time or ±1/4 cycle
(whichever is greater)
Operate time: <30 ms at 1.10 × pickup at 60 Hz
Operate time when 20 Hz injection is performed: 8 power system
cycles
NEGATIVE SEQUENCE OVERVOLTAGE
Pickup level: 0.000 to 1.250 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0 to 600.00 s in steps of 0.01
Reset delay: 0 to 600.00 s in steps of 0.01
Timer accuracy: ±3% of operate time or ±20 ms, which-
ever is greater
Operate time: <30 ms at 1.10 × pickup at 60 Hz
VOLTS PER HERTZ
Voltage: Phasor only
Pickup level: 0.80 to 4.00 in steps of 0.01 pu V/Hz
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.02 pu
Timing curves: Definite Time; Inverse A, B, and C,
FlexCurves™ A, B, C, and D
TD Multiplier: 0.05 to 600.00 s in steps of 0.01
Reset delay: 0.0 to 1000.0 s in steps of 0.1
Timer accuracy: ±3% of operate time or ±15 cycles
(whichever is greater) for values greater
than 1.1 × pickup
100% STATOR GROUND
Operating quantity:
Pickup level: 0.000 to 0.900 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±2% of reading from 1 to 120 V
Pickup delay: 0 to 600.00 s in steps of 0.01
3rd harmonic supervision level: 0.0010 to 0.1000 pu in steps of
0.0001
Timer accuracy: ±3% of operate time or ±20 ms, which-
ever is greater
Operate time: <30 ms at 1.10 × pickup at 60 Hz
V_neutral_3rd
V_neutral_3rd V_zero_3rd+
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