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Data record tests.leakage-reactance.ieeec57-12-90.impedance-voltage-definition

Verified 2026-10-24 Confidence: High

IEEE C57.12.90-2021 defines impedance voltage as the voltage required to circulate rated current through one winding while the other winding is short-circuited, with the windings connected for rated voltage; it is stated relative to the energized winding's rated voltage and resolves into an in-phase resistance drop and a quadrature reactance drop that combine as a phasor sum.

ProvenanceIEEE C57.12.90-2021 supports data record tests.leakage-reactance.ieeec57-12-90.impedance-voltage-definition, which is cited on the entry Leakage Reactance.SOURCEIEEE C57.12.90-2021IEEE C57.12.90-2021Licensed standard, clause 9.1DATA RECORDtests.leakage-reactance.ieeec57-12-90.impedance-voltage-definitiontests.leakage-reactance...Verified 2026-10-24ENTRYLeakage ReactanceLeakage ReactanceNo revisions
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StepItemDetail
SourceIEEE C57.12.90-2021Licensed standard, clause 9.1
Data recordtests.leakage-reactance.ieeec57-12-90.impedance-voltage-definitionVerified 2026-10-24
EntryLeakage ReactanceNo revisions
Subject
Leakage Reactance (Test methods)
Kind
Definition
Source
IEEE C57.12.90-2021, clause 9.1, Test Code for Liquid-Immersed Distribution, Power and Regulating Transformers, IEEE.

History

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

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"Data record tests.leakage-reactance.ieeec57-12-90.impedance-voltage-definition." Transformer Testing Reference. 2026-10-24. https://www.transformertestingreference.com/data/tests.leakage-reactance.ieeec57-12-90.impedance-voltage-definition/.