ABB Relion 670 Series Technical Reference Manual page 833

1MRK505222-UUS C
13.7.5
Table 446: ZC1WPSCH (85) Group settings (basic)
Name Values (Range)
VBase 0.05 - 2000.00
OperCurrRev Disabled
Enabled
tPickUpRev 0.000 - 60.000
tDelayRev 0.000 - 60.000
OperationWEI Disabled
Echo
Echo & Trip
VPGPickup 10 - 90
PU27PP 10 - 90
tPickUpWEI 0.000 - 60.000
13.7.6
Technical reference manual
Name Type
IRVOP_B BOOLEAN
IRVOP_C BOOLEAN
ECHO BOOLEAN
ECHO_A BOOLEAN
ECHO_B BOOLEAN
ECHO_C BOOLEAN
Setting parameters
Unit Step
kV 0.05
- -
s 0.001
s 0.001
- -
%VB 1
%VB 1
s 0.001
Technical data
Table 447: ZC1WPSCH technical data
Function
Detection pickup phase to
neutral voltage
Detection pickup phase to phase
voltage
Reset ratio
Operate time for current reversal
Delay time for current reversal
Coordination time for weak-end
infeed logic
Scheme communication
Description
Operation of current reversal logic in Phase B
Operation of current reversal logic in Phase C
Carrier Send by WEI logic
Carrier Send by WEI logic in Phase A
Carrier Send by WEI logic in Phase B
Carrier Send by WEI logic in Phase C
Default Description
400.00 Base setting for Voltage level
Disabled Operating mode of Current Reversal Logic
0.020 Pickup time for current reversal logic
0.060 Time Delay to prevent Carrier send and local
trip
Disabled Operating mode of WEI logic
70 Phase to Ground voltage for detection of fault
condition
70 Phase to Phase voltage for detection of fault
condition
0.010 Coordination time for the WEI logic
Range or value
(10-90)% of VBase
(10-90)% of VBase
<105%
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
Section 13
Accuracy
± 0.5% of V
n
± 0.5% of V
n
-
± 0.5% ± 10 ms
± 0.5% ± 10 ms
± 0.5% ± 10 ms
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