2-14 G650 Generator Protection & Control System GEK-113285A
2.4 TECHNICAL SPECIFICATIONS 2 PRODUCT DESCRIPTION
2.4.1.16 PHASE UNDERVOLTAGE (27P)
2.4.1.17 NEUTRAL OVERVOLTAGE (59NH)
2.4.1.18 GROUND OVERVOLTAGE (59G)
Voltage Input Fundamental Phasor of phase-to-ground or phase-to-
phase voltages (selectable by setting)
Pickup level 3 to 500 in steps of 1 V
Dropout level 102% to 103% of the pickup level
Level accuracy
±1% reading ±0.1% Full Scale from 10 to 500 V at
nominal frequency
Curve Shapes Fixed time or inverse curve
Reset type Instantaneous
Curve Multiplier (Time Dial) 0.00 to 900.00 s. in steps of 0.01 s.
Timing accuracy ±3.5% of operate time or 50 ms. (whichever is greater)
Minimum Voltage Threshold 0 to 500 in steps of 1 V
Logic Any/Two/All phases logic selectable by setting
Supervised by Breaker Selectable by setting
Snapshot Events Selectable by setting
Voltage Input Fundamental Phasor of the neutral voltage (calculated
from phases)
Pickup level 3 to 500 in steps of 1 V
Dropout level 97% to 98% of the pickup level
Level accuracy
±1% reading ±0.1% Full Scale from 10 to 500 V at
nominal frequency
Trip delay 0.00 to 900.00 s. in steps of 0.01 s
Reset delay 0.00 to 900.00 s. in steps of 0.01 s
Timing accuracy ±3.5% of operate time or 50 ms. (whichever is greater)
Snapshot Events Selectable by setting
Voltage Input Fundamental Phasor of the ground voltage (measured
from 4th voltage transformer)
Pickup level 3 to 500 in steps of 1 V
Dropout level 97% to 98% of the pickup level
Level accuracy
±1% reading ±0.1% Full Scale from 10 to 500 V at
nominal frequency
Trip delay 0.00 to 900.00 s. in steps of 0.01 s
Reset delay 0.00 to 900.00 s. in steps of 0.01 s
Timing accuracy ±3.5% of operate time or 50 ms. (whichever is greater)
Snapshot Events Selectable by setting
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