Settings - ABB RET650 Technical Manual

Relion 650 series transformer protection
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1MRK 504 135-UEN A
8.2.5
Table 74:
OC4PTOC Group settings (basic)
Name
Values (Range)
Operation
DirMode1
Characterist1
I1>
t1
k1
IMin1
t1Min
DirMode2
I2>
t2
Table continues on next page
Technical manual
Name
STL1
STL2
STL3
ST2NDHRM

Settings

Unit
Off
-
On
Off
-
Non-directional
Forward
Reverse
ANSI Ext. inv.
-
ANSI Very inv.
ANSI Norm. inv.
ANSI Mod. inv.
ANSI Def. Time
L.T.E. inv.
L.T.V. inv.
L.T. inv.
IEC Norm. inv.
IEC Very inv.
IEC inv.
IEC Ext. inv.
IEC S.T. inv.
IEC L.T. inv.
IEC Def. Time
Reserved
RI type
RD type
5 - 2500
%IB
0.000 - 60.000
s
0.05 - 999.00
-
5 - 10000
%IB
0.000 - 60.000
s
Off
-
Non-directional
Forward
Reverse
5 - 2500
%IB
0.000 - 60.000
s
Type
Description
BOOLEAN
Start signal from phase L1
BOOLEAN
Start signal from phase L2
BOOLEAN
Start signal from phase L3
BOOLEAN
Second harmonic detected
Step
Default
-
Off
-
Non-directional
-
ANSI Def. Time
1
1000
0.001
0.000
0.01
0.05
1
100
0.001
0.000
-
Non-directional
1
500
0.001
0.400
Section 8
Current protection
Description
Operation Off / On
Directional mode of step 1 off / non-
directional / forward / reverse
Selection of time delay curve type for step
1
Phase current operate level for step1 in %
of IBase
Definite time delay of step 1
Time multiplier for the inverse time delay
for step 1
Minimum operate current for step1 in % of
IBase
Minimum operate time for inverse curves
for step 1
Directional mode of step 2 off / non-
directional / forward / reverse
Phase current operate level for step 2 in %
of IBase
Definite time delay of step 2
145

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