Standard

IEEE C57.109-1993

Revised

Note: This standard has a new edition: IEEE C57.109-2018

Corrigendums and amendments are bought separately.

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Abstract

Revision Standard - Superseded. Recommendations believed essential for the application of over current protective devices applied to limit the exposure time of transformers to short-circuit current are set forth. Transformer coordination curves are presented for four categories of transformers. There is no intent to imply overload capability

Document information

  • Standard from IEEE
  • Published:
  • Document type: IS
  • Pages
  • Publisher IEEE
  • Distributor IEEE
  • ICS 29.180
  • Technical Committee IEEE Power and Energy Society / Transformers

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