Active standard | Published: 24/12/2026

IEEE PC37.90

IEEE Approved Draft Standard for Relays, Relay Systems, and Control Devices used for Protection and Control of Electric Power Apparatus - General Requirements and Tests

Available languages: English

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Detail information

Designation: IEEE PC37.90

Publication date: 24/12/2026

Pages: 0

Country: International technical standard

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Anotation

Revision Standard - Active - Draft.
Service conditions, electrical ratings, thermal ratings, and testing requirements are defined for relays and relay systems used to protect and control power apparatus. This standard establishes a common reproducible basis for designing and evaluating relays and relay systems.

ISBN: 979-8-8557-3496-6, 979-8-8557-3496-6
Number of Pages: 55
Product Code: STDUD28864, STDAPE28864
Keywords: ac component in dc, contact rating, current range, derating, dielectric test, humidity, impulse test, insulation test, power apparatus, protection relay, temperature range, temperature rise, voltage range
Category: Protective Relaying
Draft Number: PC37.90/D3, April 2026 - UNAPPROVED DRAFT, PC37.90/D3, April 2026 - APPROVED DRAFT

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