Power Quality Reference

Data record gloss.undervoltage.ieee1159.definition

Verified 2026-10-27 Confidence: High

In IEEE 1159-2019 an undervoltage is a long-duration decrease of the rms voltage below the nominal range, caused by the opposite events to those that cause overvoltage, such as a load switching on, a capacitor bank switching off or an overloaded circuit; the term brownout is deprecated.

ProvenanceIEEE 1159-2019 supports data record gloss.undervoltage.ieee1159.definition, which is cited on the entry Undervoltage.SOURCEIEEE 1159-2019IEEE 1159-2019Licensed standard, clause 4.4.3.2DATA RECORDgloss.undervoltage.ieee1159.definitiongloss.undervoltage.ieee1..Verified 2026-10-27ENTRYUndervoltageUndervoltageNo revisions
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StepItemDetail
SourceIEEE 1159-2019Licensed standard, clause 4.4.3.2
Data recordgloss.undervoltage.ieee1159.definitionVerified 2026-10-27
EntryUndervoltageNo revisions
Subject
Undervoltage (Glossary)
Kind
Definition
Source
IEEE 1159-2019, clause 4.4.3.2, 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.undervoltage.ieee1159.definition." Power Quality Reference. 2026-10-27. https://www.powerqualityreference.com/data/gloss.undervoltage.ieee1159.definition/.