Data record `instr.power-factor-test-set.power-factor-and-tan-delta`

Verified 2026-10-27 Confidence: High

Power factor is the cosine of the angle between the applied voltage and the resulting current, and tan delta is the tangent of the dielectric loss angle, the complement of that angle; for the small loss angles of sound insulation the two values are almost equal and an instrument may display either.

Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.

Provenance: the chain from source to entry.
Step	Item	Detail
Source	Megger product page	Manufacturer page
Data record	instr.power-factor-test-set.power-factor-and-tan-delta	Verified 2026-10-27
Entry	Power factor test set	No revisions

Subject: Power factor test set (Instrument classes)
Kind: Instrument fact
Source: Megger product page, web page edition, DELTA4000 series 12 kV power factor/tan delta testers, Megger. Publisher page

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-27	created
2026-10-27	review_status unreviewed -> software_reviewed

Cite this page

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

"Data record instr.power-factor-test-set.power-factor-and-tan-delta." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/instr.power-factor-test-set.power-factor-and-tan-delta/.

Test Instrument Reference, Data record instr.power-factor-test-set.power-factor-and-tan-delta (Oct. 27, 2026), https://www.testinstrumentreference.com/data/instr.power-factor-test-set.power-factor-and-tan-delta/.

@misc{etr-data-instr-power-factor-test-set-power-factor-and-tan-delta,
  title = {Data record instr.power-factor-test-set.power-factor-and-tan-delta},
  howpublished = {\url{https://www.testinstrumentreference.com/data/instr.power-factor-test-set.power-factor-and-tan-delta/}},
  organization = {Test Instrument Reference},
  publisher = {Test Instrument Reference},
  year = {2026},
  note = {last substantive change 2026-10-27}
}

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