89
Table 6-2 Protection Parameters (IEEE1547, Rule21, and ISO-NE) Cont'd
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.
60 60.50 65 60 60.5 65 60 61.2 65
FrqMaxTripT1(S) Trip time of Level 1
0 2 655 0 299.5 655 0 299.50
655
GridFrqMax2 Protection threshold
value of Level 2 Max.
60 62 65 60 62 65 60 62.0 65
FrqMaxTripT2(S) Trip time of Level 2
0 0.16 655 0 0.16 655 0 0.16 655
GridFrqMax3 Protection threshold
value of Level 3 Max.
60 62 65 60 62 65 60 62.0 65
FrqMaxTripT3(S) Trip time of Level 3
0 0.16 655 0 0.16 655 0 0.16 655
GridFrqMin1 Protection threshold
value of Level 1 Min.
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.
54 57 60 54 57 60 54 56.5 60
FrqMinTripT2 (S)
2
0 0.16 655 0 0.16 655 0 0.16 655
GridFrqMin3 Protection threshold
value of Level 3 Min.
54 57 60 54 57 60 54 56.5 60
FrqMinTripT3 (S)
3
0 0.16 655 0 0.16 655 0 0.16 655