Protective Relay Reference

Data record tests.relay-51-time-overcurrent-test.ieeec37-112.expected-time

Verified 2026-10-24 Confidence: High

For a time-overcurrent element set to one of the standard characteristics of IEEE C37.112-2018, the expected operate time at a test multiple of pickup is computed from the trip equation of clause 3.2 with the relay time dial, which gives the reference against which a measured operate time is compared.

ProvenanceIEEE C37.112-2018 supports data record tests.relay-51-time-overcurrent-test.ieeec37-112.expected-time, which is cited on the entry Relay 51 Time Overcurrent Test.SOURCEIEEE C37.112-2018IEEE C37.112-2018Licensed standard, clause 3.2DATA RECORDtests.relay-51-time-overcurrent-test.ieeec37-112.expected-timetests.relay-51-time-over..Verified 2026-10-24ENTRYRelay 51 Time Overcurrent TestRelay 51 Time Overcurren..No revisions
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StepItemDetail
SourceIEEE C37.112-2018Licensed standard, clause 3.2
Data recordtests.relay-51-time-overcurrent-test.ieeec37-112.expected-timeVerified 2026-10-24
EntryRelay 51 Time Overcurrent TestNo revisions
Subject
Relay 51 Time Overcurrent Test (Test methods)
Kind
Method fact
Source
IEEE C37.112-2018, clause 3.2, IEEE Standard for Inverse-Time Characteristics Equations for Overcurrent Relays, IEEE.

History

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DateChange
2026-10-24created
2026-10-24review_status unreviewed -> software_reviewed

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"Data record tests.relay-51-time-overcurrent-test.ieeec37-112.expected-time." Protective Relay Reference. 2026-10-24. https://www.protectiverelayreference.com/data/tests.relay-51-time-overcurrent-test.ieeec37-112.expected-time/.