ABB REV615 - Transient;Intermittent Earth-Fault Protection (INTRPTEF)

Table 32. Directional earth-fault protection (DEFxPDEF) main settings
Parameter Function Value (Range) Step
Start value DEFLPDEF 0.010...5.000 × I
n
0.005
DEFHPDEF 0.10...40.00 × I
n
0.01
Directional mode DEFLPDEF and DEFHPDEF 1 = Non-directional
2 = Forward
3 = Reverse
-
Time multiplier DEFLPDEF 0.05...15.00 0.01
DEFHPDEF 0.05...15.00 0.01
Operate delay time DEFLPDEF 50...200000 ms 10
DEFHPDEF 40...200000 ms 10
Operating curve type
1)
DEFLPDEF Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19
DEFHPDEF Definite or inverse time
Curve type: 1, 3, 5, 15, 17
Operation mode DEFxPDEF 1 = Phase angle
2 = IoSin
3 = IoCos
4 = Phase angle 80
5 = Phase angle 88
-
1) For further reference, see the Operating characteristics table
Table 33. Transient/intermittent earth-fault protection (INTRPTEF)
Characteristic
Value
Operation accuracy (Uo criteria with transient protection) Depending on the frequency of the measured current: f
n
±2 Hz
±1.5% of the set value or ±0.002 × Uo
Operate time accuracy ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5
Table 34. Transient/intermittent earth-fault protection (INTRPTEF) main settings
Parameter
Function Value (Range) Step
Directional mode INTRPTEF 1 = Non-directional
2 = Forward
3 = Reverse
-
Operate delay time INTRPTEF 40...1200000 ms 10
Voltage start value INTRPTEF 0.05...0.50 × U
n
0.01
Operation mode INTRPTEF 1 = Intermittent EF
2 = Transient EF
-
Peak counter limit INTRPTEF 2...20 1
Min operate current INTRPTEF 0.01...1.00 × I
n
0.01
Capacitor Bank Protection and Control
1MRS757952 D
REV615
Product version: 5.0 FP1
30 ABB