GE G30 Instruction Manual page 39

CHAPTER 2: PRODUCT DESCRIPTION
Operate time:
Typical times are average operate times including variables such as frequency change instance, test method, and so on, and can vary by
±0.5 cycles.
TURBINE FREQUENCY OUT-OF-BAND (OOB) ACCUMULATED OPERATING TIME
Frequency OOB accumulation:
Frequency OOB accumulation pickup:
Frequency OOB accumulator preset:
Level accuracy:
Minimum volt/amp supervision:
Timer accuracy of accumulation:
BREAKER ARCING CURRENT
Principle:
Initiation:
Compensation for auxiliary relays:
Alarm threshold:
Fault duration accuracy:
Availability:
SYNCHROCHECK
Max voltage difference:
Max angle difference:
Max freq. difference:
Hysteresis for max. freq. diff.:
Dead source function:
S-CLS MAX dF:
S-CLS MIN dF:
V2 MAG CORR FACTOR:
V2 ANGLE SHIFT:
ACCIDENTAL ENERGIZATION
Operating condition:
Arming condition:
Overcurrent:
Pickup level:
Dropout level:
Level accuracy:
Undervoltage:
Pickup level:
Dropout level:
Level accuracy:
Operate Time:
LOSS OF EXCITATION
Operating condition:
Characteristic:
Center:
Radius:
Reach accuracy:
Undervoltage supervision
Level:
Accuracy:
Pickup delay:
Timer accuracy:
G30 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
typically 9.5 cycles at 2 × pickup
typically 8.5 cycles at 3 × pickup
typically 6.5 cycles at 5 × pickup
7 sets; 20 to 70 Hz in steps of 0.01
1 to 65536 s in steps of 1
1 to 65536 s in steps of 1
±0.01 Hz
0.1 to 1.25 pu of V_1 or I_1
±1% or 1 second, whichever is greater
2
accumulates breaker duty (I t) and measures fault duration
programmable per phase from any FlexLogic operand
0 to 65.535 s in steps of 0.001
2
0 to 50000 kA -cycle in steps of 1
0.25 of a power cycle
1 per CT bank with a minimum of 2
0 to 400000 V in steps of 1
°
0 to 100 in steps of 1
0.00 to 2.00 Hz in steps of 0.01
0.00 to 0.10 Hz in steps of 0.01
None, LV1 & DV2, DV1 & LV2, DV1 or DV2, DV1 xor DV2, DV1 & DV2 (L = Live, D = Dead)
0.10 to 2.00 Hz in steps of 0.01
0.00 to 1.00 Hz in steps of 0.01
0.10 to 10.00 in steps of 0.01
° ° °
-180 to +180 in steps of 1
Overcurrent
Undervoltage and/or Machine Offline
0.020 to 3.000 pu in steps of 0.001
97 to 98% of pickup
±0.5% of reading from 0.1 to 2.0 × CT rating
0.004 to 3.000 pu in steps of 0.001
102 to 103% of pickup
±0.5% of reading 10 to 208 V
<30 ms at 1.10 × pickup at 60 Hz
Positive-sequence impedance
2 independent offset mho circles
0.10 to 300.0 Ω (sec.) in steps of 0.01
0.10 to 300.0 Ω (sec.) in steps of 0.01
±3%
0.000 to 1.250 pu in steps of 0.001
±0.5% of reading from 10 to 208 V
0 to 65.535 s in steps of 0.001
±3% of operate time or ±20 ms, whichever is greater
SPECIFICATIONS
2
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