CPS SCA Series - Page 106

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Table 6-11 LVRT and HVRT Parameters (IEEE5147 / Rule21 and ISO-NE)
Only for CPS SCA50/60KTL-DO/US-480
Grid Frequency Protection
Setting Range
Parameter
Name
Description
IEEE1547
Rule21
ISO-NE
Min
Default
Max
Min
Default
Max
Min
Default
Max
LVRTModeSett
ing
0: Disable
1: Enable, no reactive power
output
2: Enable, reactive power
output
0
0
2
0
2
2
0
2
2
LVRTTripVolt
Threshold value of LOW
voltage trip
70
80
100
70
88
100
70
88
100
LVRTPstReacti
ve1
The factor LVRT Positive
Reactive Current
0
150
300
0
150
300
0
150
300
LVRTNegReact
ive1
The factor LVRT Negative
Reactive Current
0
200
300
0
200
300
0
200
300
HVRTModeSet
ting
0: Disable
1: Enable, no reactive power
output
2: Enable, reactive power
output
0
0
2
0
2
2
0
1
2
HVRTTripVolt
Threshold value of HIGH
voltage trip
100
110
135
100
110
135
100
110
135