Protective Relay Reference

Relay 59 Overvoltage Test

Updated 2026-10-24

Data records

  • Relay 59 Overvoltage Test is specified for electromechanical and solid-state protective relays in acceptance testing at clause 7.9.1.B.3.17 of ANSI/NETA ATS-2025. Value: electromechanical and solid-state protective relays. Source: ANSI/NETA ATS-2025, clause 7.9.1.B.3.17. Verified 2026-10-13. Record tests.relay-59-overvoltage-test.equipment.relay.acceptance
  • Relay 59 Overvoltage Test is specified for electromechanical and solid-state protective relays in maintenance testing at clause 7.9.1.B.3.17 of ANSI/NETA MTS-2023. Value: electromechanical and solid-state protective relays. Source: ANSI/NETA MTS-2023, clause 7.9.1.B.3.17. Verified 2026-10-13. Record tests.relay-59-overvoltage-test.equipment.relay.maintenance
  • Relay 59 Overvoltage Test is addressed in ANSI/NETA ATS-2025. Source: ANSI/NETA ATS-2025, clause 7.9.1.B.3.17. Verified 2026-10-13. Record tests.relay-59-overvoltage-test.governed-by.ansi-neta-ats
  • Relay 59 Overvoltage Test is addressed in ANSI/NETA MTS-2023. Source: ANSI/NETA MTS-2023, clause 7.9.1.B.3.17. Verified 2026-10-13. Record tests.relay-59-overvoltage-test.governed-by.ansi-neta-mts
  • The overvoltage trip type test in clause 5.4.2 of IEEE 1547.1-2020 applies the Annex A.3 step function to voltage: the function is set to the end of its adjustable range closest to nominal with the trip time at its minimum, the source is held just short of the set point on its non-trip side and then stepped past it, the voltage at trip is recorded, and the sequence is repeated per phase, at the opposite end of the range, at the maximum trip time and for each overvoltage trip region. Clause 5.4.2.4 passes the test when the unit trips inside the applicable clearing time of IEEE 1547-2018 and its evaluated adjustment ranges cover the allowable ranges. Source: IEEE 1547.1-2020, clause 5.4.2, 5.4.2.4. Verified 2026-10-24. Record tests.relay-59-overvoltage-test.ieee1547-1.type-test
  • For distributed energy resources, clause 6.4.1 of IEEE 1547-2018 sets mandatory overvoltage tripping through two functions: OV1 with a default and a range of allowable settings per abnormal performance category, and OV2 with a fixed voltage and clearing time common to all categories. Under clause 4.3 the overvoltage functions respond to whichever applicable voltage is highest in relation to nominal. Source: IEEE 1547-2018, clause 6.4.1, 4.3. Verified 2026-10-24. Record tests.relay-59-overvoltage-test.ieee1547.trip-requirements
  • Clause 9.3 of IEEE 2800-2022 requires instantaneous overvoltage protection to operate on filtered quantities, with a minimum measurement window for any element that could trip the whole plant, and to be coordinated with the units' transient overvoltage capability, the plant's surge protection and the ride-through of Table 14. Source: IEEE 2800-2022, clause 9.3. Verified 2026-10-24. Record tests.relay-59-overvoltage-test.ieee2800.filtered-quantities
  • The test method is named Relay 59 Overvoltage Test. Value: Relay 59 Overvoltage Test. Source: Electrical Testing Reference editorial taxonomy, 2026-10 edition. Verified 2026-10-13. Record tests.relay-59-overvoltage-test.title

Sources

  • ANSI/NETA ATS-2025, Acceptance Testing Specifications for Electrical Power Equipment and Systems, 2025 edition, NETA. Cited: clause 7.9.1.B.3.17. Held as: Purchased single-user copy. Publisher page
  • ANSI/NETA MTS-2023, Maintenance Testing Specifications for Electrical Power Equipment and Systems, 2023 edition, NETA. Cited: clause 7.9.1.B.3.17. Held as: Purchased single-user copy. Publisher page
  • Electrical Testing Reference editorial taxonomy, Electrical Testing Reference editorial taxonomy of test methods, 2026-10 edition, Electrical Testing Reference. Held as: Own observation.
  • IEEE 1547-2018, Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces, 2018 edition, IEEE. Cited: clause 6.4.1, 4.3. Held as: Purchased single-user copy.
  • IEEE 1547.1-2020, Conformance Test Procedures for Equipment Interconnecting Distributed Energy Resources, 2020 edition, IEEE. Cited: clause 5.4.2, 5.4.2.4. Held as: Purchased single-user copy.
  • IEEE 2800-2022, Interconnection and Interoperability of Inverter-Based Resources with Transmission Systems, 2022 edition, IEEE. Cited: clause 9.3. Held as: Purchased single-user copy.

Obtaining the documents

Changelog (13 entries)
DateRevisionChange
2026-10-24created (tests.relay-59-overvoltage-test.ieee1547-1.type-test)
2026-10-24revised (tests.relay-59-overvoltage-test.ieee1547-1.type-test)
2026-10-24review_status unreviewed -> software_reviewed (tests.relay-59-overvoltage-test.ieee1547-1.type-test)
2026-10-24created (tests.relay-59-overvoltage-test.ieee1547.trip-requirements)
2026-10-24revised (tests.relay-59-overvoltage-test.ieee1547.trip-requirements)
2026-10-24review_status unreviewed -> software_reviewed (tests.relay-59-overvoltage-test.ieee1547.trip-requirements)
2026-10-24created (tests.relay-59-overvoltage-test.ieee2800.filtered-quantities)
2026-10-24review_status unreviewed -> software_reviewed (tests.relay-59-overvoltage-test.ieee2800.filtered-quantities)
2026-10-13created (tests.relay-59-overvoltage-test.equipment.relay.acceptance)
2026-10-13created (tests.relay-59-overvoltage-test.equipment.relay.maintenance)
2026-10-13created (tests.relay-59-overvoltage-test.governed-by.ansi-neta-ats)
2026-10-13created (tests.relay-59-overvoltage-test.governed-by.ansi-neta-mts)
2026-10-13created (tests.relay-59-overvoltage-test.title)

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"Relay 59 Overvoltage Test." Protective Relay Reference. 2026-10-24. https://www.protectiverelayreference.com/tests/relay-59-overvoltage-test/.