ABB RELION 670 Series Product Manual page 80

Bay control REC670 2.1 IEC
Table 64. Current reversal and weak-end infeed logic for residual overcurrent protection ECRWPSCH
Function
Operate mode of WEI logic
Operate voltage 3U0 for WEI
trip
Operate time for current
reversal logic
Delay time for current reversal
Coordination time for weak-
end infeed logic
80
M16051-2 v11
Range or value
Off
Echo
Echo & Trip
(5-70)% of UBase
(0.000-60.000) s
(0.000-60.000) s
(0.000–60.000) s
Accuracy
-
±0.5% of U
r
±0.2% or ±30 ms whichever is greater
±0.2% or ±30 ms whichever is greater
±0.2% or ±30 ms whichever is greater
1MRK 511 361-BEN D
ABB