RMS variation

Updated 2026-10-27

Data records

  • In IEEE 1159-2019 an rms variation is a variation of the rms value of a voltage or current from nominal, the umbrella term for interruptions, sags, swells, undervoltages and overvoltages, which Table 2 divides into short-duration and long-duration categories. Source: IEEE 1159-2019, clause 3. Verified 2026-10-27. Record gloss.rms-variation.ieee1159.definition
  • The term is written RMS variation. Value: RMS variation. Source: Electrical Testing Reference editorial taxonomy, 2026-10 edition. Verified 2026-10-27. Record gloss.rms-variation.title

Sources

  • Electrical Testing Reference editorial taxonomy, Electrical Testing Reference editorial taxonomy of test methods, 2026-10 edition, Electrical Testing Reference. Held as: Own observation.
  • IEEE 1159-2019, Recommended Practice for Monitoring Electric Power Quality, 2019 edition, IEEE. Cited: clause 3. Held as: Purchased single-user copy. Publisher page for IEEE 1159-2019Publisher information page

Obtaining the documents

Changelog (2 entries)
DateRevisionChange
2026-10-27created (gloss.rms-variation.ieee1159.definition)
2026-10-27created (gloss.rms-variation.title)

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"RMS variation." Power Quality Reference. 2026-10-27. https://www.powerqualityreference.com/glossary/rms-variation/.