GE G30 Instruction Manual page 51

2 PRODUCT DESCRIPTION
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
Operate time: <30 ms at 0.9 pickup at 60 Hz for Defi-
nite Time mode
THIRD HARMONIC NEUTRAL UNDERVOLTAGE
Operating quantity: 3rd harmonic of auxiliary undervoltage
Undervoltage:
Pickup level: 0.0000 to 3.0000 pu in steps of 0.0001
Dropout level: 102 to 103% of pickup
Accuracy: ±2% of reading from 1 to 120 V
Power:
Pickup level: 0.000 to 1.250 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 1.250 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
<30 ms at 0.9 × pickup at 60 Hz
Operate time:
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
<30 ms at 1.10 × pickup at 60 Hz
Operate time:
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
<30 ms at 1.10 × pickup at 60 Hz
Operate time:
GE Multilin
AUXILIARY OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Timer accuracy:
Operate time:
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:
UNDERFREQUENCY
Minimum signal:
Pickup level:
Dropout level:
Level accuracy:
Time delay:
Timer accuracy:
Operate time:
Typical times are average operate times including variables such
as frequency change instance, test method, etc., and may vary by
±0.5 cycles.
OVERFREQUENCY
Pickup level:
Dropout level:
Level accuracy:
Time delay:
Timer accuracy:
Operate time:
G30 Generator Protection System
2.4 SPECIFICATIONS
0.000 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
0.000 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, which-
ever 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 ±15 cycles
(whichever is greater) for values greater
than 1.1 × pickup
0.10 to 1.25 pu in steps of 0.01
20.00 to 65.00 Hz in steps of 0.01
pickup + 0.03 Hz
±0.001 Hz
0 to 65.535 s in steps of 0.001
±3% of operate time or ±1/4 cycle
(whichever is greater)
typically 4 cycles at 0.1 Hz/s change
typically 3.5 cycles at 0.3 Hz/s change
typically 3 cycles at 0.5 Hz/s change
20.00 to 65.00 Hz in steps of 0.01
pickup – 0.03 Hz
±0.001 Hz
0 to 65.535 s in steps of 0.001
±3% of operate time or ±1/4 cycle
(whichever is greater)
typically 4 cycles at 0.1 Hz/s change
typically 3.5 cycles at 0.3 Hz/s change
typically 3 cycles at 0.5 Hz/s change
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