Transformer Testing Reference

Dielectric withstand

Updated 2026-10-13

RelationshipsDielectric withstand is governed by IEEE C57.12.91-2020, IEEE C57.12.90-2021 and applies to no listed equipment.IEEE Standard Test Code for Dry-Type Distribution and Power TransformersIEEE C57.12.91-2020IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating TransformersIEEE C57.12.90-2021Dielectric withstandDielectric withstand
Relationships. Governing standards on the left, equipment classes the test applies to on the right, as recorded for this entry.
Relationships: relationships recorded for this entry.
RelationshipEntry
Governing standardIEEE C57.12.91-2020 (IEEE Standard Test Code for Dry-Type Distribution and Power Transformers)
Governing standardIEEE C57.12.90-2021 (IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers)

Data records

Sources

  • ANSI/NETA ATS-2025, Acceptance Testing Specifications for Electrical Power Equipment and Systems, 2025 edition, NETA. Cited: clause 7.2.1.2.B.9. Held as: Purchased single-user copy. Publisher page
  • ANSI/NETA MTS-2023, Maintenance Testing Specifications for Electrical Power Equipment and Systems, 2023 edition, NETA. Cited: clause 7.2.1.2.B.9. Held as: Purchased single-user copy. Publisher page

Obtaining the documents

Changelog (2 entries)
DateRevisionChange
2026-10-13created (tests.dielectric-withstand.equipment.transformer.acceptance)
2026-10-13created (tests.dielectric-withstand.equipment.transformer.maintenance)

Cite this page

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

"Dielectric withstand." Transformer Testing Reference. 2026-10-13. https://www.transformertestingreference.com/tests/dielectric-withstand/.