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Full Description

Scope

This standard describes methods for performing tests specified in IEEE Std C57.12.00(TM) and other standards applicable to liquid-immersed distribution, power, and regulating transformers.1 It is intended for use as a basis for performance and proper testing of such transformers. This standard applies to all liquid-immersed transformers, except instrument transformers, step-voltage and induction voltage regulators, arc furnace transformers, rectifier transformers, specialty transformers, grounding transformers, and mine transformers. Transformer requirements and specific test criteria are not a part of this standard, but they are contained in appropriate standards, such as IEEE Std C57.12.00, ANSI C57.12.10 [B1],2 IEEE Std C57.12.20(TM), and IEEE Std C57.12.40(TM) [B10], or in user specifications.

Purpose

The purpose of this standard is to provide test procedure information for tests specified in IEEE Std C57.12.00 and other standards applicable to liquid-immersed distribution, power, and regulating transformers. It is intended for use as a basis for performance and proper testing of such transformers.

Abstract

Revision Standard - Superseded. Methods for performing tests specified in IEEE Std C57.12.00(TM) and other standards applicable to liquid-immersed distribution, power, and regulating transformers are described. Instrument transformers, step-voltage and induction voltage regulators, arc furnace transformers, rectifier transformers, specialty transformers, grounding transformers, and mine transformers are excluded. This standard covers resistance measurements, polarity and phase-relation tests, ratio tests, no-load loss and excitation current measurements, impedance and load loss measurements, dielectric tests, temperature tests, short-circuit tests, audible sound level measurements, and calculated data.
 

Document History

  1. IEEE C57.12.90-2021


    IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

    • Most Recent
  2. IEEE C57.12.90-2015


    IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

    • Historical Version
  3. IEEE C57.12.90-2010

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    IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

    • Historical Version
  4. IEEE C57.12.90-2006


    IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

    • Historical Version
  5. IEEE C57.12.90-1999


    IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers

    • Historical Version
  6. IEEE C57.12.90-1993


    IEEE Standard Test Code for Liquid-Immersed Distribution, Power and Regulating Transformers and IEEE Guide for Short-Circuit Testing of Distribution and Power Transformers

    • Historical Version
  7. IEEE C57.12.90-1987


    IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers and IEEE Guide for Short-Circuit Testing of Distribution and Power Transformers

    • Historical Version