Table 34. Non-directional earth-fault protection (EFxPTOC) main settings
Parameter Function Value (Range) Step
Start value EFLPTOC 0.010...5.000 x I
n
0.005
EFHPTOC 0.10...40.00 x I
n
0.01
EFIPTOC 1.00...40.00 x I
n
0.01
Time multiplier EFLPTOC 0.05...15.00 0.01
EFHPTOC 0.05...15.00 0.01
Operate delay time EFLPTOC 40...200000 ms 10
EFHPTOC 40...200000 ms 10
EFIPTOC 20...200000 ms 10
Operating curve type
1)
EFLPTOC Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19
EFHPTOC Definite or inverse time
Curve type: 1, 3, 5, 9, 10, 12, 15, 17
EFIPTOC Definite time
1) For further reference, see Operation characteristics table
Transformer Protection and Control 1MRS757846 A
RET620
Product version: 2.0
ABB 29
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