ABB BB 104 - Appendix 2: Wiring Diagram Examples; Current Transformer Wiring Diagrams; Voltage Transformer Wiring Diagrams

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Appendix 2
Wiring diagram examples
Current transformers: Voltage transformers:
Primary current
Secondary current
P1 P2
S1 S2
Primary current
High Ratio
Low
Ratio
P1 P2
1S1 1S2 1S3
Primary current
P1 P2
Secondary current
1S1 1S2
Secondary current
2S1 2S2
P1 C1 C2 P2
Secondary current
S1 S2
Primary voltage
Secondary voltage
AN
an
Primary voltage
Secondary voltage
AN
an
Secondary voltage
da dn
Low ratio
High ratio
Primary voltage
1n1a1 1a2
A N