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PID-3521-OUTPUTSIGNALS v8
Table 256:
ZCRWPSCH Output signals
Name
Type
Description
IRVL
BOOLEAN
Operation of current reversal logic
TRWEI
BOOLEAN
Trip signal from weak end infeed logic
TRWEIL1
BOOLEAN
Trip signal from weak end infeed logic in phase
L1
TRWEIL2
BOOLEAN
Trip signal from weak end infeed logic in phase
L2
TRWEIL3
BOOLEAN
Trip signal from weak end infeed logic in phase
L3
ECHO
BOOLEAN
Carrier send by WEI logic
12.2.5
Settings
PID-3521-SETTINGS v8
Table 257:
ZCRWPSCH Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
CurrRev
Off
On
-
-
Off
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
WEI
Off
Echo
Echo & Trip
-
-
Off
Operating mode of WEI logic
tPickUpWEI
0.000 - 60.000
s
0.001
0.010
Coordination time for the WEI logic
UPP<
10 - 90
%UB
1
70
Phase to Phase voltage for detection of
fault condition
UPN<
10 - 90
%UB
1
70
Phase to Neutral voltage for detection of
fault condition
Table 258:
ZCRWPSCH Non group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
GlobalBaseSel
1 - 12
-
1
1
Selection of one of the Global Base
Value groups
12.2.6
Operation principle
12.2.6.1
Current reversal logic
M16679-3 v8
The current reversal logic can be enabled by setting the parameter
CurrRev
=
On
.
The current reversal logic uses a reverse zone connected to the input IRV to
recognize the fault on the parallel line in any of the phases.When the reverse zone
1MRK 506 382-UEN A
Section 12
Scheme communication
Line distance protection REL650 2.2 IEC
443
Technical manual
Содержание RELION 650 SERIES
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