ABB RET 54 Series - Page 38

38
1MRS755225
Transformer Terminal
Technical Reference Manual, General
RET 54_
The letters b and c after the signal type are used to distinguish between signals of the
same type.
Table 5.1.6-1 Physical analog channels of the transformer terminals
Measuring units
Ch
No.
Current Transformer (CT) Voltage Transformer (VT) Signal type
(selectable
alternatives)
2
Current Transformer CT1
(I
n
= 1 A/5 A)
Not in use,
I
L1
, I
L2
, I
L3
,
I
L1b
,
I
L2b
,
I
L3b
,
I
0
,
I
0b
3
Current Transformer CT2
(I
n
= 1 A/5 A)
4
Current Transformer CT3
(I
n
= 1 A/5 A)
5
Current Transformer CT4
(I
n
= 1 A/5 A)
Voltage Transformer VT1
(U
n
=100V/110V/115V/120V)
Not in use,
I
L1
, I
L2
, I
L3
,
I
L1b
,
I
L2b
,
I
L3b
,
I
0
,
I
0b
,
U
12
, U
23
, U
31
,
U
12b
, U
23b
, U
31b
,
U
12c
,
U
1
, U
2
, U
3
,
U
1b
, U
2b
, U
3b
,
U
1c
, U
0
, U
0
b
6
Current Transformer CT5
(I
n
= 1 A/5 A)
Voltage Transformer VT1 or VT2
(U
n
=100V/110V/115V/120V)
7
Current Transformer CT4, CT5 or CT6
(I
n
= 1 A/5 A)
Not in use,
I
L1
, I
L2
, I
L3
,
I
L1b
,
I
L2b
,
I
L3b
,
I
0
,
I
0b
8
Current Transformer CT5, CT6 or CT7
(I
n
= 1 A/5 A)
9
Current Transformer CT6, CT7 or CT8
(I
n
= 1 A/5 A)
10
Voltage Transformer VT1, VT2 or
VT3 (U
n
=100V/110V/115V/120V)
U
12
, U
23
, U
31
,
U
12b
, U
23b
, U
31b
,
U
12c
,
U
1
, U
2
, U
3
, U
1b
,
U
2b
, U
3b
, U
1c
,
U
0
, U
0
b