Table 76. Scheme communication logic (DSOCPSCH)
Characteristic Value
Operate time accuracy ±1.0% of the set value or ±20 ms
Table 77. Scheme communication logic (DSOCPSCH) main settings
Parameter Function Value (Range) Step
Scheme type DSOCPSCH Off
Intertrip
Permissive UR
Permissive OR
Blocking
-
Coordination time DSOCPSCH 0.000...60.000 s 0.001
Carrier dur time DSOCPSCH 0.000...60.000 s 0.001
Table 78. Current reversal and WEI logic (CRWPSCH)
Characteristic
Value
Operation accuracy At the frequency f = f
n
±1.5% of the set value or ±0.002 × U
n
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,
…
Table 79. Current reversal and WEI logic (CRWPSCH) main settings
Parameter
Function Value (Range) Step
Reversal mode CRWPSCH Off
On
-
Wei mode CRWPSCH Off
Echo
Echo & Trip
-
PhV level for Wei CRWPSCH 0.10...0.90 pu 0.01
PPV level for Wei CRWPSCH 0.10...0.90 pu 0.01
Reversal time CRWPSCH 0.000...60.000 s 0.001
Reversal reset time CRWPSCH 0.000...60.000 s 0.001
Wei Crd time CRWPSCH 0.000...60.000 s 0.001
Feeder Protection and Control 1MRS756380 A
REF630
Product version: 1.0 Issued: 15.09.2009
ABB 53
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