ABB RED615 - Wattmetric-Based Earth-Fault Protection (WPWDE) Main Settings; Transient;Intermittent Earth-Fault Protection (INTRPTEF); Transient;Intermittent Earth-Fault Protection (INTRPTEF) Main Settings

Table 39. Wattmetric-based earth-fault protection (WPWDE) main settings
Parameter Function Value (Range) Step
Directional mode WPWDE 2 = Forward
3 = Reverse
Current start value WPWDE 0.010...5.000 × I
n
0.001
Voltage start value WPWDE 0.010...1.000 × U
n
0.001
Power start value WPWDE 0.003...1.000 × P
n
0.001
Reference power WPWDE 0.050...1.000 × P
n
0.001
Characteristic angle WPWDE -179...180° 1
Time multiplier WPWDE 0.05...2.00 0.01
Operating curve type WPWDE Definite or inverse time
Curve type: 5, 15, 20
Operate delay time WPWDE 60...200000 ms 10
Min operate current WPWDE 0.010...1.000 × I
n
0.001
Min operate voltage WPWDE 0.01...1.00 × U
n
0.01
Table 40. 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 41. 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 (voltage start
value for transient EF)
INTRPTEF 0.01...0.50 × Un 0.01
Operation mode INTRPTEF 1=Intermittent EF
2=Transient EF
-
Peak counter limit (Min
requirement for peak counter
before start in IEF mode)
INTRPTEF 2...20 -
Min operate current INTRPTEF 0.01...1.00 × In 0.01
Line Differential Protection and Control
1MRS756500 K
RED615
Product version: 5.0 FP1
ABB 39