ABB RED615 ANSI, Руководство по эксплуатации продукта

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Table 35. Directional earth-fault protection (DEFxPDEF) main settings
Parameter Function Value (Range) Step
Start Value DEFLPDEF 0.010...5.000 x I
n
0.005
DEFHPDEF 0.10...40.00 x 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. Transient/intermittent earth-fault protection (INTRPTEF)
Characteristic Value
Operation accuracy (Uo criteria with transient protection) Depending on the frequency of the current measured: f
n
±2 Hz
±1.5% of the set value or ±0.002 x Uo
Operate time accuracy ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5
Line Differential Protection and Control 1MRS756500 F
RED615
Product version: 4.0
ABB 37