ABB RET 54 Series Technical Reference Manual, General page 38

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