ABB REM 543 Technical Reference Manual page 25

ABB Network Partner REM 543 Protection,
Monitoring and Control
Ch No. Current
Transformer
(CT)
7 Current
Transformer
CT4, CT5 or
CT6
(I = 1 A/5 A)
n
8 Current
Transformer
CT5, CT6 or
CT7
(I = 1 A/5 A)
n
9 Current
Transformer
CT6, CT7 or
CT8
(I = 1 A/5 A)
n
10
11
12
The letters b and c after the signal type are intended to distinguish two signals of the
same type.
Technical Reference Manual
Measuring units
Voltage Rogovski coil/-
Transformer sensor (RS)
(VT)
Voltage RS type 1, 2, 3
Transformer
VT1
(U =100V/
n
110V/115V/
120V)
Voltage RS type 1, 2, 3
Transformer
VT2
(U =100V/
n
110V/115V/
120V)
Voltage RS type 1, 2, 3
Transformer
VT3
=100V/
(U
n
110V/115V/
120V)
Voltage RS type 1, 2, 3
Transformer
VT1, VT2,
VT3 or VT4
(U =100V/
n
110V/115V/
120V)
Part 1, General
Voltage divider Signal type
(VD) (selectable
alternatives)
VD type 1, 2, 3 Not in use, I
I , I , I
L2 L3
I I
L2b, L3b,
I , U , U
0b 0
U , U
23 31
U , U
12b 12c
U , U , U
1 2
U , U
1b 1c
VD type 1, 2, 3 Not in use, I
I , I , I
L2 L3
I I
L2b, L3b,
I , U , U
0b 0
U , U
23 31
U , U
12b 12c
U , U , U
1 2
U , U
1b 1c
VD type 1, 2, 3 Not in use, I
I , I , I
L2 L3
I I
L2b, L3b,
I , U , U
0b 0
U , U
23 31
U , U
12b 12c
U , U , U
1 2
U , U
1b 1c
VD type 1, 2, 3 Not in use, I
I , I , I
L2 L3
I I , U
L2b, L3b
U , U
12 23
U , U
12b 12c
U , U , U
1 2
U , U
1b 1c
Calculated
neutral current
I =
os
I +I +I
L1 L2
Calculated
residual volt-
age U
os
U +U +U
1 2
,
L1
L1b,
I ,
0
,
12
,
,
,
3
,
L1
L1b,
I ,
0
,
12
,
,
,
3
,
L1
L1b,
I ,
0
,
12
,
,
,
3
,
L1
L1b,
,
0
, U ,
31
,
,
3
L3
=
3
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