ABB RED615 Product Manual page 37

ABB
Line Differential Protection and Control
RED615
Product version: 4.0
Table 35. Directional earth-fault protection (DEFxPDEF) main settings
Parameter
Start Value
Directional mode
Time multiplier
Operate delay time
1)
Operating curve type
Operation mode
1) For further reference, refer to the Operating characteristics table
Table 36. Transient/intermittent earth-fault protection (INTRPTEF)
Characteristic
Operation accuracy (Uo criteria with transient protection)
Operate time accuracy
Suppression of harmonics
Function
DEFLPDEF
DEFHPDEF
DEFLPDEF and
DEFHPDEF
DEFLPDEF
DEFHPDEF
DEFLPDEF
DEFHPDEF
DEFLPDEF
DEFHPDEF
DEFLPDEF and
DEFHPDEF
Value (Range)
0.010...5.000 x I
n
0.10...40.00 x I
n
1=Non-directional
2=Forward
3=Reverse
0.05...15.00
0.05...15.00
60...200000 ms
40...200000 ms
Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
17, 18, 19
Definite or inverse time
Curve type: 1, 3, 5, 15, 17
1=Phase angle
2=IoSin
3=IoCos
4=Phase angle 80
5=Phase angle 88
Value
Depending on the frequency of the current measured: f
±2 Hz
±1.5% of the set value or ±0.002 x Uo
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n x f , where n = 2, 3, 4, 5
n
1MRS756500 F
Step
0.005
0.01
0.01
0.01
10
10
n
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