2-20 G650 Generator Protection & Control System GEK-113285A
2.4 TECHNICAL SPECIFICATIONS 2 PRODUCT DESCRIPTION
2.4.2.7 INADVERTED GENERATOR ENERGIZATION (ACCIDENTAL ENERGIZATION) (50/27)
2.4.2.8 PHASE SHIFT-LOSS OF MAINS (78V)
2.4.2.9 LOSS OF EXCITATION (40)
Operating condition Overcurrent
Arming condition Undervoltage and/or Machine Offline
Overcurrent
Pickup level 0.00 to 160.00 A in steps of 0.01 A
Dropout level 97% to 98% of pickup level
Level Accuracy Values at nominal frequency
±0.5% of the reading ± 10 mA from 0.1 to 10 A
±1.5% of the reading for higher values
Undervoltage
Pickup level 0.00 to 500.00 V in steps of 0.01 V
Dropout level 102% to 103% of pickup level
Level accuracy ±1% reading ±0.1% Full Scale from 10 to 500 V at nomi-
nal frequency
Operate time <50 ms at 50 Hz, typically
Timing accuracy ±3.5% of operate time or 50 ms. (whichever is greater)
Snapshot Events Selectable by setting
Loss of Mains Mode One Phase
Phase Shift Angle 2.00 to 22.00 in steps of 0.01 degrees
Minimum Voltage 30 to 500 in steps of 1 V
Level accuracy ± 3º
Timing accuracy ±3.5% of operate time or 60 ms (whichever is greater)
Snapshot Events Selectable by setting
Operating condition Positive-sequence impedance
Characteristic 2 independent offset mho circles (Stages 1 and 2)
Center 0.10 to 300.00. Ω (sec.) in steps of 0.01
Radius 0.10 to 300.00. Ω (sec.) in steps of 0.01
Reach accuracy ±3%
Undervoltage supervision Selectable by setting
UV superv. Level 0.0 to 500.0 v in steps of 0.1 V
Trip delay 0.00 to 65.54 s in steps of 0.01 s
Operate time <50 ms at 50 Hz, typically
Timing accuracy ±3.5% of operate time or 50 ms. (whichever is greater)
Snapshot Events Selectable by setting
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