Test Instrument Reference

Data record instr.circuit-breaker-analyzer.first-trip-test

Verified 2026-10-27 Confidence: High

A first-trip test is made with clamp-on current sensors on the coil circuit while the breaker is still in service and has not operated for a long time; the coil current, the control voltage and the instant at which the current is extinguished in each of the three phases are recorded on that first operation, which is the one most likely to reveal a lubrication problem.

ProvenanceMegger product page supports data record instr.circuit-breaker-analyzer.first-trip-test, which is cited on the entry Circuit breaker analyzer.SOURCEMegger product pageMegger product pageManufacturer pageDATA RECORDinstr.circuit-breaker-analyzer.first-trip-testinstr.circuit-breaker-an..Verified 2026-10-27ENTRYCircuit breaker analyzerCircuit breaker analyzerNo revisions
Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.
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StepItemDetail
SourceMegger product pageManufacturer page
Data recordinstr.circuit-breaker-analyzer.first-trip-testVerified 2026-10-27
EntryCircuit breaker analyzerNo revisions
Subject
Circuit breaker analyzer (Instrument classes)
Kind
Instrument fact
Source
Megger product page, web page edition, TM1700 circuit breaker analyzers, Megger. Publisher page

History

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

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"Data record instr.circuit-breaker-analyzer.first-trip-test." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/instr.circuit-breaker-analyzer.first-trip-test/.