Transformer Testing Reference

Standards

The standards, specifications and codes that govern electrical testing, with edition history, status and scope recorded from the publishers.

Edition timelineIEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers: 2020 (current); IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers: 2021 (current); IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers: 2021 (current); IEEE Standard Test Code for Dry-Type Distribution and Power Transformers: 2020; IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers: 2015, 2021; IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators: 2017 (current)2015201620172018201920202021IEEE Standard for General Requirements for Dry-Type Distribution and Power TransformersIEEE C57.12.01-2020IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers2020 (current edition)IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating TransformersIEEE C57.12.00-2021IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers2021 (current edition)IEEE Standard Practices and Requirements for Semiconductor Power Rectifier TransformersIEEE C57.18.10-2021IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers2021 (current edition)IEEE Standard Test Code for Dry-Type Distribution and Power TransformersIEEE C57.12.91-2020IEEE Standard Test Code for Dry-Type Distribution and Power Transformers2020IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating TransformersIEEE C57.12.90-2021IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers2015IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers2021IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulatorsIEEE/IEC C57.15-2017IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators2017 (current edition)
Edition timeline. Editions recorded for each standard, from the publishers' catalogs. The filled dot marks the edition the publisher lists as current.
Edition timeline: edition years from the publishers' catalogs; editions without a four-digit year are listed but not plotted.
StandardEditionKindCurrentRecord
IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers2020EditionYesstd.ieee-c57-12-01.edition.2020
IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers2021EditionYesstd.ieee-c57-12-00.edition.2021
IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers2021EditionYesstd.ieee-c57-18-10.edition.2021
IEEE Standard Test Code for Dry-Type Distribution and Power Transformers2020Editionstd.ieee-c57-12-91.edition.2020
IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers2015Revision ofstd.ieee-c57-12-90.revision-of
IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers2021Approvalstd.ieee-c57-12-90.approved
IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators2017EditionYesstd.ieee-c57-15.edition.2017
  1. IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers

    IEEE C57.12.01-2020 is the designation of the document titled IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers. Value: IEEE C57.12.01-2020.

  2. IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers

    IEEE C57.12.00-2021 is the designation of the document titled IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers. Value: IEEE C57.12.00-2021.

  3. IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers

    IEEE C57.18.10-2021 is the designation of the document titled IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers. Value: IEEE C57.18.10-2021.

  4. IEEE Standard Test Code for Dry-Type Distribution and Power Transformers

    IEEE C57.12.91-2020 is the designation of the document titled IEEE Standard Test Code for Dry-Type Distribution and Power Transformers. Value: IEEE C57.12.91-2020.

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

    In IEEE C57.12.90-2021 the word liquid covers any insulating liquid used in a transformer, including mineral oil, natural ester, synthetic ester, silicone liquid and high molecular weight hydrocarbon.

  6. IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators

    IEEE/IEC C57.15-2017 is the designation of the document titled IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators. Value: IEEE/IEC C57.15-2017.