ABB REX640 - Current Reversal and Weak-End Infeed Logic (CRWPSCH); Current Reversal and Weak-End Infeed Logic (CRWPSCH) Main Settings; Communication Logic for Residual Overcurrent (RESCPSCH); Communication Logic for Residual Overcurrent (RESCPSCH) Main Settings

Table 41. Current reversal and weak-end infeed 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
Table 42. Current reversal and weak-end infeed logic (CRWPSCH) main settings
Parameter Function Value (Range) Step
Reversal mode CRWPSCH 1 = Off
2 = On
-
Wei mode CRWPSCH 1 = Off
3 = Echo
4 = Echo and Operate
-
PhV level for Wei CRWPSCH 0.10...0.90 × U
n
0.01
PPV level for Wei CRWPSCH 0.10...0.90 × U
n
0.01
Reversal time CRWPSCH 0...60000 ms 10
Reversal reset time CRWPSCH 0...60000 ms 10
Wei Crd time CRWPSCH 0...60000 ms 10
Table 43. Communication logic for residual overcurrent (RESCPSCH)
Characteristic
Value
Operate time accuracy ±1.0% of the set value or ±20 ms
Table 44. Communication logic for residual overcurrent (RESCPSCH) main settings
Parameter
Function Value (Range) Step
Scheme type RESCPSCH 1 = None
2 = Intertrip
3 = Permissive Underreach
4 = Permissive Overreach
5 = Blocking
-
Carrier Min Dur RESCPSCH 0...60000 ms 1
Coordination time RESCPSCH 0...60000 ms 1
Table 45. Current reversal and weak-end infeed logic for residual overcurrent (RCRWPSCH)
Characteristic
Value
Operation accuracy At the frequency f = f
n
±1.5% of the set value or ±0.002 × I
n
Operate time accuracy ±1.0% of the set value or ±20 ms
1MRS759144 A
REX640
Product version: 1
ABB 41