GEK-113032A W650 Wind Generator Protection System 2-11
2 PRODUCT DESCRIPTION 2.4 TECHNICAL SPECIFICATIONS
2
2.4.1.11 NEUTRAL DIRECTIONAL (67N)
2.4.1.12 SENSITIVE GROUND DIRECTIONAL (67SG)
2.4.1.13 PHASE OVERVOLTAGE (59P)
Characteristic angle -90º to +90º in steps of 1º
Block Logic Permission or Block selectable by setting
Angle accuracy
±2º for I>0.1 A and V>5 Vac
Operate time <30ms, typically
Directionality Forward and reverse selectable by setting
Polarizing Voltage, current, dual
Polarizing Voltage V
N
(measured or calculated, selected by setting)
Polarizing Current
Isg (measured from 5
th
current transformer)
Operating Current I
N
Polarizing Voltage threshold 0 to 500 Vac in steps of 1 V
Polarizing Current threshold 0.005 A
Characteristic angle -90º to +90º in steps of 1º
Block Logic Permission or Block selectable by setting
Angle accuracy
±2º for I>0.1 A and V>5 Vac
Operate time <30ms, typically
Directionality Forward and reverse selectable by setting
Polarizing Voltage
Polarizing Voltage V
N
(measured or calculated, selected by setting)
Operating Current
Isg (measured from 5
th
current transformer)
Polarizing Voltage threshold 0 to 500 Vac in steps of 1 V
Characteristic angle -90º to +90º in steps of 1º
Block Logic Permission or Block selectable by setting
Angle accuracy
±2º for I>0.1 A and V>5 Vac
Operate time <30ms, typically
Voltage Input Fundamental Phasor (without harmonics) of phase-to-
phase voltages
Pickup level 3 to 850 in steps of 1 V
Dropout level 97% of the pickup level
Level Accuracy
±1% reading ±0.1% Full Scale from 10 to 500 V
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 30 ms. (whichever is greater)
Logic Any/Two/All phases logic selectable by setting
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