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

Verified 2026-10-24 Confidence: High

Tables A.1 and A.2 of IEEE C37.112-2018 record measured constants for two induction relay models that differ from the Table 1 values, which shows that the standard characteristics are mean shapes rather than the exact curve of any particular electromechanical relay.

ProvenanceIEEE C37.112-2018 supports data record tests.relay-51-time-overcurrent-test.ieeec37-112.induction-relay-curves, which is cited on the entry Relay 51 Time Overcurrent Test.SOURCEIEEE C37.112-2018IEEE C37.112-2018Licensed standard, clause Annex A, Tables A.1 and A.2DATA RECORDtests.relay-51-time-overcurrent-test.ieeec37-112.induction-relay-curvestests.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 Annex A, Tables A.1 and A.2
Data recordtests.relay-51-time-overcurrent-test.ieeec37-112.induction-relay-curvesVerified 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 Annex A, Tables A.1 and A.2, IEEE Standard for Inverse-Time Characteristics Equations for Overcurrent Relays, IEEE.

History

Every recorded change to this data record, oldest first.
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.induction-relay-curves." Protective Relay Reference. 2026-10-24. https://www.protectiverelayreference.com/data/tests.relay-51-time-overcurrent-test.ieeec37-112.induction-relay-curves/.