Table 36. 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 37. 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 38. 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
Generator and Interconnection Protection
1MRS758279 B
REG615
Product version: 5.0 FP1
ABB
37
Содержание RELION REG615
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