On a multi-tap current transformer (CT), once the selected ratio is connected, is it necessary to short the unused terminals?
Issue:
Is shorting un used terminals required once the CT has been wired for the application?
Product Line:
Current transformers
Environment:
Class 4210 CT's
Resolution:
NO. The unused terminals must be left open. With multi-tap CTs, as long as there is a load/burden on the chosen ratio terminals of the unit, potentially hazardous voltages will not build up at the terminals.
Is shorting un used terminals required once the CT has been wired for the application?
Product Line:
Current transformers
Environment:
Class 4210 CT's
Resolution:
NO. The unused terminals must be left open. With multi-tap CTs, as long as there is a load/burden on the chosen ratio terminals of the unit, potentially hazardous voltages will not build up at the terminals.
Released for: Schneider Electric USA
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