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
Содержание RET620
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