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IEEE C37.90-1978

IEEE C37.90-1978 IEEE Standard for Relays and Relay Systems Associated with Electric Power Apparatus

standard by IEEE, 11/04/1976

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Scope

This standard applies only to relays and relay systems used to control power switchgear. It does not cover relays of types designed primarily for industrial control, for switching of communication or other low-level signals, or any other equipment not intended for the control of power equipment.

Purpose

The purpose of this standard is to specify standard service conditions, standard ratings, and requirements for testing of relays and relay systems associated with power apparatus.

Abstract

Revision Standard - Superseded.

 
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