Test Instrument Reference

Data record instr.vacuum-interrupter-tester.direct-versus-alternating

Verified 2026-10-27 Confidence: High

A direct-voltage tester is far lighter than an alternating-voltage one because the resistive current that reveals a loss of vacuum is many times smaller than the capacitive current the interrupter draws under alternating voltage, which makes the resistive component hard to distinguish in an alternating-voltage test.

ProvenanceMegger product page supports data record instr.vacuum-interrupter-tester.direct-versus-alternating, which is cited on the entry Vacuum interrupter tester.SOURCEMegger product pageMegger product pageManufacturer pageDATA RECORDinstr.vacuum-interrupter-tester.direct-versus-alternatinginstr.vacuum-interrupter..Verified 2026-10-27ENTRYVacuum interrupter testerVacuum interrupter testerNo revisions
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StepItemDetail
SourceMegger product pageManufacturer page
Data recordinstr.vacuum-interrupter-tester.direct-versus-alternatingVerified 2026-10-27
EntryVacuum interrupter testerNo revisions
Subject
Vacuum interrupter tester (Instrument classes)
Kind
Instrument fact
Source
Megger product page, web page edition, VIDAR vacuum interrupter tester, Megger. Publisher page

History

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

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"Data record instr.vacuum-interrupter-tester.direct-versus-alternating." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/instr.vacuum-interrupter-tester.direct-versus-alternating/.