Transformer Testing Reference

Data record tests.transformer-turns-ratio.ieeec57-12-90.definition

Verified 2026-10-24 Confidence: Medium

IEEE C57.12.90-2021 defines turns ratio as the turns of the high-voltage winding divided by the turns of the low-voltage winding, with a tapped winding taken at the turns for its normal rated voltage, and clause 7.1.1 has the ratio determined for every tap and for the full winding.

ProvenanceIEEE C57.12.90-2021 supports data record tests.transformer-turns-ratio.ieeec57-12-90.definition, which is cited on the entry Transformer Turns Ratio.SOURCEIEEE C57.12.90-2021IEEE C57.12.90-2021Licensed standard, clause 7.1, 7.1.1DATA RECORDtests.transformer-turns-ratio.ieeec57-12-90.definitiontests.transformer-turns-..Verified 2026-10-24ENTRYTransformer Turns RatioTransformer Turns RatioNo revisions
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StepItemDetail
SourceIEEE C57.12.90-2021Licensed standard, clause 7.1, 7.1.1
Data recordtests.transformer-turns-ratio.ieeec57-12-90.definitionVerified 2026-10-24
EntryTransformer Turns RatioNo revisions
Subject
Transformer Turns Ratio (Test methods)
Kind
Definition
Source
IEEE C57.12.90-2021, clause 7.1, 7.1.1, Test Code for Liquid-Immersed Distribution, Power and Regulating Transformers, IEEE.

History

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DateChange
2026-10-24created
2026-10-24review_status unreviewed -> software_reviewed

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"Data record tests.transformer-turns-ratio.ieeec57-12-90.definition." Transformer Testing Reference. 2026-10-24. https://www.transformertestingreference.com/data/tests.transformer-turns-ratio.ieeec57-12-90.definition/.