CPS SCA36KTL-DO/US-480 - Page 95

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Table 6-2 Protection Parameters (IEEE1547-2018, Rule21 and ISO-NE ) Cont'd
Grid Frequency Protection
Setting Range
Parameter name
Description
IEEE1547-2018
Rule21
ISO-NE
Min
Default
Max
Min
Default
Max
Min
Default
Max
GridFrqMax1(Hz)
Protection threshold
value of Level 1 Max.
grid frequency
60
61.2
66
60
60.5
66
60
61.2
66
FrqMaxTripT1(S)
Trip time of Level 1
Max. grid frequency
0
300
1000
0
300
1000
0
300
1000
GridFrqMax2(Hz)
Protection threshold
value of Level 2 Max.
grid frequency
60
62
66
60
62
66
60
62
66
FrqMaxTripT2(S)
Trip time of Level 2
Max. grid frequency
0
0.16
1000
0
0.16
1000
0
0.16
1000
GridFrqMax3(Hz)
Protection threshold
value of Level 3 Max.
grid frequency
60
62
66
60
62
66
60
62
66
FrqMaxTripT3(S)
Trip time of Level 3
Max. grid frequency
0
0.16
1000
0
0.16
1000
0
0.16
1000
GridFrqMin1(Hz)
Protection threshold
value of Level 1 Min.
grid frequency
48
58.5
60
48
58.5
60
48
58.5
60
FrqMinTripT1 (S)
Trip time of Level 1
Min. grid frequency
0
300
1000
0
300
655
0
300
1000
GridFrqMin2(Hz)
Protection threshold
value of Level 2 Min.
grid frequency
48
56.5
60
48
57
60
48
56.5
60
FrqMinTripT2 (S)
Trip time of Level 2
Min. grid frequency
0
0.16
1000
0
0.16
655
0
0.16
1000
GridFrqMin3(Hz)
Protection threshold
value of Level 3 Min.
grid frequency
48
56.5
60
48
57
60
48
56.5
60
FrqMinTripT3 (S)
Trip time of Level 3
Min. grid frequency
0
0.16
1000
0
0.16
655
0
0.16
1000