CPS SCA Series - Page 95

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Table 6-3 Protection Parameters (IEEE1547 /Rule21 and ISO-NE) Cont'd
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
GridFrqMax1
Protection threshold
value of Level 1 Max.
grid frequency
60
60.50
65
60
60.5
65
60
61.2
65
FrqMaxTripT1(S)
Trip time of Level 1
Max. grid frequency
0
2
655
0
299.5
655
0
299.50
655
GridFrqMax2
Protection threshold
value of Level 2 Max.
grid frequency
60
62
65
60
62
65
60
62.0
65
FrqMaxTripT2(S)
Trip time of Level 2
Max. grid frequency
0
0.16
655
0
0.16
655
0
0.16
655
GridFrqMax3
Protection threshold
value of Level 3 Max.
grid frequency
60
62
65
60
62
65
60
62.0
65
FrqMaxTripT3(S)
Trip time of Level 3
Max. grid frequency
0
0.16
655
0
0.16
655
0
0.16
655
GridFrqMin1
Protection threshold
value of Level 1 Min.
grid frequency
54
59.5
60
54
58.5
60
54
58.5
60
FrqMinTripT1 (S)
Trip time of Level 1 Min.
grid frequency
0
2
655
0
299.5
655
0
299.5
655
GridFrqMin2
Protection threshold
value of Level 2 Min.
grid frequency
54
57
60
54
57
60
54
56.5
60
FrqMinTripT2 (S)
Trip time of Level 2 Min.
grid frequency
0
0.16
655
0
0.16
655
0
0.16
655
GridFrqMin3
Protection threshold
value of Level 3 Min.
grid frequency
54
57
60
54
57
60
54
56.5
60
FrqMinTripT3 (S)
Trip time of Level 3 Min.
grid frequency
0
0.16
655
0
0.16
655
0
0.16
655