Wattmetric-Based Earth-Fault Protection (Wpwde) Main Settings; Transient/Intermittent Earth-Fault Protection (Intrptef); Transient/Intermittent Earth-Fault Protection (Intrptef) Main Settings - ABB REX640 Product Manual

REX640
Product version: 1
Table 67. Wattmetric-based earth-fault protection (WPWDE) main settings
Parameter
Directional mode
Current start value
Voltage start value
Power start value
Reference power
Characteristic angle
Time multiplier
1)
Operating curve type
Operate delay time
Min operate current
Min operate voltage
1) For further reference, see the Operating characteristics table
Table 68. Transient/intermittent earth-fault protection (INTRPTEF)
Characteristic
Operation accuracy (Uo criteria with transient protection)
Operate time accuracy
Suppression of harmonics
Table 69. Transient/intermittent earth-fault protection (INTRPTEF) main settings
Parameter
Directional mode
Operate delay time
Voltage start value
Operation mode
Peak counter limit
Min operate current
ABB
Function
WPWDE
WPWDE
WPWDE
WPWDE
WPWDE
WPWDE
WPWDE
WPWDE
WPWDE
WPWDE
WPWDE
Function
INTRPTEF
INTRPTEF
INTRPTEF
INTRPTEF
INTRPTEF
INTRPTEF
Value (Range)
2 = Forward
3 = Reverse
0.010...5.000 × I
n
0.010...1.000 × U
n
0.003...1.000 × S
n
0.050...1.000 × S
n
-179...180°
0.025...2.000
Definite or inverse time
Curve type: 5, 15, 20
60...300000 ms
0.010...1.000 × I
n
0.01...1.00 × U
n
Value
Depending on the frequency of the measured current: f
±1.5% of the set value or ±0.002 × Uo
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5
n
Value (Range)
1 = Non-directional
2 = Forward
3 = Reverse
40...1200000 ms
0.05...0.50 × U
n
1 = Intermittent EF
2 = Transient EF
2...20
0.01...1.00 × I
n
1MRS759144 A
Step
-
0.001
0.001
0.001
0.001
1
0.005
10
0.001
0.01
±2 Hz
n
Step
-
10
0.01
-
1
0.01
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