Name
Values (Range)
Unit
Step
Default
Description
LVAConst1
-20.0 - 20.0
%UB2
0.1
0.0
Constant 1 for LVA, % of regulated
voltage
LVAConst2
-20.0 - 20.0
%UB2
0.1
0.0
Constant 2 for LVA, % of regulated
voltage
LVAConst3
-20.0 - 20.0
%UB2
0.1
0.0
Constant 3 for LVA, % of regulated
voltage
LVAConst4
-20.0 - 20.0
%UB2
0.1
0.0
Constant 4 for LVA, % of regulated
voltage
VRAuto
-20.0 - 20.0
%UB2
0.1
0.0
Load voltage auto correction, in % of rated
voltage
Iblock
0 - 250
%IB1
1
150
Overcurrent block level, in % of rated
current
HourHuntDetect
0 - 30
Op/H
1
30
Level for number of counted raise/lower
within one hour
DayHuntDetect
0 - 100
Op/D
1
100
Level for number of counted raise/lower
within 24 hour
tWindowHunt
1 - 120
Min
1
60
Time window for hunting alarm, minutes
NoOpWindow
3 - 30
Op/W
1
30
Hunting detection alarm, maximum
operations/window
P>
-9999.99 - 9999.99
MW
0.01
1000
Alarm level of active power in forward
direction
P<
-9999.99 - 9999.99
MW
0.01
-1000
Alarm level of active power in reverse
direction
Q>
-9999.99 - 9999.99
MVAr
0.01
1000
Alarm level of reactive power in forward
direction
Q<
-9999.99 - 9999.99
MVAr
0.01
-1000
Alarm level of reactive power in reverse
direction
tPower
1 - 6000
s
1
10
Time delay for alarms from power
supervision
OperationPAR
Off
CC
MF
-
-
Off
Parallel operation, Off/CirculatingCurrent/
MasterFollower
OperCCBlock
Off
On
-
-
On
Enable block from circulating current
supervision
CircCurrLimit
0.0 - 20000.0
%IB2
0.1
100.0
Block level for circulating current
tCircCurr
0 - 1000
s
1
30
Time delay for block from circulating
current
Comp
0 - 2000
%
1
100
Compensation parameter in % for
Circulating Current
OperSimTap
Off
On
-
-
Off
Simultaneous tapping prohibited
OperUsetPar
Off
On
-
-
Off
Use common voltage set point for parallel
operation
VTmismatch
0.5 - 10.0
%UB2
0.1
10.0
Alarm level for VT supervision, in % of
rated voltage
tVTmismatch
1 - 600
s
1
10
Time delay for VT supervision alarm
T1RXOP
Off
On
-
-
Off
Receive block operation from parallel
transformer 1
Table continues on next page
Section 12
1MRK 504 135-UEN A
Control
336
Technical manual
Summary of Contents for ret650
Page 1: ...Relion 650 series Transformer protection RET650 Technical manual ...
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