ABB RED615 - HMI Operation: Local and Web Interfaces; Local HMI (LHMI) Navigation and Control; LHMI Login and Session Management

Table 35. 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 60...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 DEFLPDEF and DEFHPDEF 1 = Phase angle
2 = IoSin
3 = IoCos
4 = Phase angle 80
5 = Phase angle 88
1) For further reference, refer to the Operating characteristics table
Table 36. Admittance-based earth-fault protection (EFPADM)
Characteristic
Value
Operation accuracy
1)
At the frequency f = f
n
±1.0% or ±0.01 mS
(In range of 0.5...100 mS)
Start time
2)
Minimum Typical Maximum
56 ms 60 ms 64 ms
Reset time 40 ms
Operate time accuracy ±1.0% of the set value of ±20 ms
Suppression of harmonics -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
1) Uo = 1.0 × Un
2) Includes the delay of the signal output contact. Results based on statistical distribution of 1000 measurements.
Line Differential Protection and Control
1MRS756500 K
RED615
Product version: 5.0 FP1
ABB 37