Transformer Testing Reference

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

Updated 2026-10-13

Edition timelineIEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators: 2017 (current)20152016201720182019IEEE/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 this standard from the publisher's catalog. The filled dot marks the edition listed as current.
Edition timeline: edition years from the publishers' catalogs; editions without a four-digit year are listed but not plotted.
StandardEditionKindCurrentRecord
IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators2017EditionYesstd.ieee-c57-15.edition.2017

Data records

  • 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. Source: IEEE/IEC C57.15-2017. Verified 2026-10-13. Record std.ieee-c57-15.designation
  • IEEE/IEC C57.15-2017 is the 2017 edition of the IEEE/IEC international standard on requirements, terminology and test code for step-voltage regulators, published on the date stated in the datum value. Value: 2017. Source: IEEE/IEC C57.15-2017. Verified 2026-10-13. Record std.ieee-c57-15.edition.2017
  • The standard covers electrical, mechanical and test requirements for liquid-immersed single-phase and three-phase step-voltage regulators for distribution and substation use, including their controls, within stated kVA and voltage ceilings. Source: IEEE/IEC C57.15-2017. Verified 2026-10-13. Record std.ieee-c57-15.scope
  • The IEEE catalog lists IEEE/IEC C57.15-2017 with the status Active Standard. Value: Active Standard. Source: IEEE/IEC C57.15-2017. Verified 2026-10-13. Record std.ieee-c57-15.status
  • The publisher catalog gives the full title of IEEE/IEC C57.15-2017 as IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators. Value: IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators. Source: IEEE/IEC C57.15-2017. Verified 2026-10-13. Record std.ieee-c57-15.title

Sources

  • IEEE/IEC C57.15-2017, IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators, 2017 edition, IEEE. Held as: Public page. Publisher page

Obtaining the documents

Changelog (10 entries)
DateRevisionChange
2026-10-13created (std.ieee-c57-15.designation)
2026-10-13created (std.ieee-c57-15.edition.2017)
2026-10-13reviewed (std.ieee-c57-15.edition.2017)
2026-10-13edited (std.ieee-c57-15.edition.2017)
2026-10-13created (std.ieee-c57-15.scope)
2026-10-13reviewed (std.ieee-c57-15.scope)
2026-10-13created (std.ieee-c57-15.status)
2026-10-13reviewed (std.ieee-c57-15.status)
2026-10-13created (std.ieee-c57-15.title)
2026-10-13reviewed (std.ieee-c57-15.title)

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators." Transformer Testing Reference. 2026-10-13. https://www.transformertestingreference.com/standards/ieee-c57-15/.