Electrical Testing Reference

Data record tests.dielectric-withstand.ieeec57-12-90.applied-voltage

Verified 2026-10-24 Confidence: High

Clause 10.6 of IEEE C57.12.90-2021 performs the applied-voltage test with every part of the winding under test connected to the line terminal and all other windings, the core and the tank grounded; the voltage is raised gradually from a low fraction of the test level, held for the stated duration and brought down gradually, and a failure shows as smoke or bubbling in the liquid, a thump inside the tank, or a test current that rises suddenly.

ProvenanceIEEE C57.12.90-2021 supports data record tests.dielectric-withstand.ieeec57-12-90.applied-voltage, which is cited on the entry Dielectric Withstand.SOURCEIEEE C57.12.90-2021IEEE C57.12.90-2021Licensed standard, clause 10.6DATA RECORDtests.dielectric-withstand.ieeec57-12-90.applied-voltagetests.dielectric-withsta..Verified 2026-10-24ENTRYDielectric WithstandDielectric WithstandNo revisions
Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.
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StepItemDetail
SourceIEEE C57.12.90-2021Licensed standard, clause 10.6
Data recordtests.dielectric-withstand.ieeec57-12-90.applied-voltageVerified 2026-10-24
EntryDielectric WithstandNo revisions
Subject
Dielectric Withstand (Test methods)
Kind
Method fact
Source
IEEE C57.12.90-2021, clause 10.6, Test Code for Liquid-Immersed Distribution, Power and Regulating Transformers, IEEE.

History

Every recorded change to this data record, oldest first.
DateChange
2026-10-24created
2026-10-24revised
2026-10-24review_status unreviewed -> software_reviewed

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"Data record tests.dielectric-withstand.ieeec57-12-90.applied-voltage." Electrical Testing Reference. 2026-10-24. https://www.electricaltestingreference.com/data/tests.dielectric-withstand.ieeec57-12-90.applied-voltage/.