Superseded Standard

IEEE C57.117-1986

IEEE Guide for Reporting Failure Data for Power Transformers and Shunt Reactors on Electric Utility Power Systems

The reporting and statistical analysis of reliability of power transformers and shunt reactors used on electric utility power systems are addressed. The following types and applications of transformers are covered: power transformers, autotransformers, regulating transformers, phase-shifting transformers, shunt reactors, HVDC converter transformers, substation transformers, transmission tie transformers, unit transformers, unit auxiliary transformers, and grounding transformers. The format for the collection and reporting of data is presented, and the kinds of reports that may be useful to both users and manufacturers of transformers are illustrated. (This standard has been superseded by IEEE C57.125-2015)

Sponsor Committee
PE/TR - Transformers
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Superseded Standard
Board Approval
ANSI Approved:
ANSI Withdrawn Date:

Working Group Details

IEEE Power and Energy Society
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Sponsor Committee
PE/TR - Transformers
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Working Group
PwrTrans-WGC57.117 - Power Transformers - Rep. of Failure Data Working Group
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IEEE Program Manager
Malia Zaman

Other Activities From This Working Group

Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.

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