Power Quality Reference

Data record gloss.frequency-variation.ieee1159.definition

Verified 2026-10-27 Confidence: High

In IEEE 1159-2019 a power frequency variation is the deviation of the fundamental frequency from its nominal value, following the balance between load and available generation; small local variations occur continuously, while large excursions follow bulk system faults, the loss of a large block of load or the loss of a generator.

ProvenanceIEEE 1159-2019 supports data record gloss.frequency-variation.ieee1159.definition, which is cited on the entry Power frequency variation.SOURCEIEEE 1159-2019IEEE 1159-2019Licensed standard, clause 4.4.7DATA RECORDgloss.frequency-variation.ieee1159.definitiongloss.frequency-variatio..Verified 2026-10-27ENTRYPower frequency variationPower frequency variationNo revisions
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StepItemDetail
SourceIEEE 1159-2019Licensed standard, clause 4.4.7
Data recordgloss.frequency-variation.ieee1159.definitionVerified 2026-10-27
EntryPower frequency variationNo revisions
Subject
Power frequency variation (Glossary)
Kind
Definition
Source
IEEE 1159-2019, clause 4.4.7, Recommended Practice for Monitoring Electric Power Quality, IEEE. Publisher pagePublisher information page

History

Every recorded change to this data record, oldest first.
DateChange
2026-10-27created

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"Data record gloss.frequency-variation.ieee1159.definition." Power Quality Reference. 2026-10-27. https://www.powerqualityreference.com/data/gloss.frequency-variation.ieee1159.definition/.