Name
Type
Description
IRVOP_B
BOOLEAN
Operation of current reversal logic in Phase B
IRVOP_C
BOOLEAN
Operation of current reversal logic in Phase C
ECHO
BOOLEAN
Carrier Send by WEI logic
ECHO_A
BOOLEAN
Carrier Send by WEI logic in Phase A
ECHO_B
BOOLEAN
Carrier Send by WEI logic in Phase B
ECHO_C
BOOLEAN
Carrier Send by WEI logic in Phase C
13.7.5
Setting parameters
Table 446:
ZC1WPSCH (85) Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
VBase
0.05 - 2000.00
kV
0.05
400.00
Base setting for Voltage level
OperCurrRev
Disabled
Enabled
-
-
Disabled
Operating mode of Current Reversal Logic
tPickUpRev
0.000 - 60.000
s
0.001
0.020
Pickup time for current reversal logic
tDelayRev
0.000 - 60.000
s
0.001
0.060
Time Delay to prevent Carrier send and local
trip
OperationWEI
Disabled
Echo
Echo & Trip
-
-
Disabled
Operating mode of WEI logic
VPGPickup
10 - 90
%VB
1
70
Phase to Ground voltage for detection of fault
condition
PU27PP
10 - 90
%VB
1
70
Phase to Phase voltage for detection of fault
condition
tPickUpWEI
0.000 - 60.000
s
0.001
0.010
Coordination time for the WEI logic
13.7.6
Technical data
Table 447:
ZC1WPSCH technical data
Function
Range or value
Accuracy
Detection pickup phase to
neutral voltage
(10-90)% of VBase
± 0.5% of V
n
Detection pickup phase to phase
voltage
(10-90)% of VBase
± 0.5% of V
n
Reset ratio
<105%
-
Operate time for current reversal
(0.000-60.000) s
± 0.5% ± 10 ms
Delay time for current reversal
(0.000-60.000) s
± 0.5% ± 10 ms
Coordination time for weak-end
infeed logic
(0.000-60.000) s
± 0.5% ± 10 ms
1MRK505222-UUS C
Section 13
Scheme communication
827
Technical reference manual
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