Current transformers

  • C. Christopoulos
  • A. Wright


The term current transformer (commonly abbreviated to ct) is used to describe a piece of equipment consisting of a pair of mutually-coupled windings mounted around a core, usually of magnetic material. Such transformers are normally used to step down high currents flowing in their primary windings to lower levels suitable for feeding to measuring and protective equipment. Isolation of the latter equipment from the primary circuits is ensured by the insulation normally associated with the primary windings.


Circuit Breaker Current Transformer Linear Coupler Fault Current Secondary Current 
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Further Reading

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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • C. Christopoulos
    • 1
  • A. Wright
    • 1
  1. 1.University of NottinghamNottinghamUK

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