ABB REF542plus Operator's Manual page 71

1MRS755869
Multifunction Protection and Switchgear Control
Unit
Operator's manual
Table 18.1.-1 Connection table for conven tional instrument
transformers (Continued)
9
10
11 T1/R
12
13
14 T2/B
15
16 T7/B
17 T4/B
18
19 T6/B
20 T7/R
21 T4/R
22 T2/R
23 T6/R
24
B: Black wire for voltage transformer.
R: Red wire for voltage transformer.
1: 1 A input for current transformer.
2: Common input for current transformer.
3: 5 A input for current transformer.
Example:
To determine the pins for the analog input module 1VCF750170R0817:
3CTs, 3VTs, 1CTs; used with transformers with 1 A on the secondary
windings.
The following connection must be done:
Analog input 1; the current transformer for phase 1 must be connected on pins
11 and 3 (common).
Analog input 2; the current transformer for phase 2 must be connected on pins
22 and 14 (common).
Analog input 3; the current transformer for phase 3 must be connected on pins
10 and 2 (common).
Analog input 4; the voltage transformer for phase 1 to earth must be
connected on pins 21 and 17.
REF542plus
T5/3
T3/1
T1/1
T8/1
T4/3
T2/2
T6/3
T7/2 T7/A
T4/2
T2/3
T6/2
T7/3 T7/B
T4/1
T2/1
T6/1
T7/1
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