GE G30 Instruction Manual page 38

SPECIFICATIONS
Pickup delay:
Timing curves:
TD Multiplier:
Reset delay:
Timer accuracy:
TRANSFORMER HOTTEST-SPOT TEMPERATURE
Operating quantity:
2
Pickup level:
Dropout level:
Pickup delay:
TRANSFORMER AGING FACTOR
Operating quantity:
Pickup level:
Pickup delay:
TRANSFORMER LOSS OF LIFE
Operating quantity:
Pickup level:
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, and so on, and can vary by
±0.5 cycles.
OVERFREQUENCY
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, and so on, and can vary by
±0.5 cycles.
RATE OF CHANGE OF FREQUENCY
df/dt trend:
df/dt pickup level:
df/dt dropout level:
df/dt level accuracy:
Overvoltage supv.:
Overcurrent supv.:
Pickup delay:
Reset delay:
Timer accuracy:
95% settling time for df/dt:
2-24
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
computed temperature in °C
50 to 300°C in steps of 1
1°C below pickup
0 to 30000 min. in steps of 1
computed aging acceleration factor (pu)
1 to 10 pu in steps of 0.1
0 to 30000 min. in steps of 1
computed accumulated transformer loss of life, in hours
0 to 500000 hours in steps of 1
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
increasing, decreasing, bi-directional
0.10 to 15.00 Hz/s in steps of 0.01
96% of pickup
80 mHz/s or 3.5%, whichever is greater
0.100 to 3.000 pu in steps of 0.001
0.020 to 30.000 pu in steps of 0.001
0 to 65.535 s in steps of 0.001
0 to 65.535 s in steps of 0.001
±3% of operate time or ±1/4 cycle (whichever is greater)
<24 cycles
CHAPTER 2: PRODUCT DESCRIPTION
G30 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL