IEEE C37.90
relays an'd relay systems associated with electric power apparatus
inactive
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| Organization: | IEEE |
| Publication Date: | 15 August 1978 |
| Status: | inactive |
| Page Count: | 29 |
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
Document History
September 22, 2005
Relays and Relay Systems Associated with Electric Power Apparatus
This standard specifies standard service conditions, standard ratings, performance requirements, and testing requirements for relays and relay systems used to protect and control power apparatus. A...
September 22, 2005
Standard for Relays and Relay Systems Associated with Electric Power Apparatus
This standard specifies standard service conditions, standard ratings, performance requirements, and testing requirements for relays and relay systems used to protect and control power apparatus. A...
January 1, 1989
Standard for Relays and Relay Systems Associated with Electric Power Apparatus
This standard applies only to relays and relay systems used to protect and control power apparatus. It does not cover relays designed primarily for industrial control, for switching communication or...
IEEE C37.90
August 15, 1978
relays an'd relay systems associated with electric power apparatus
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...
August 15, 1978
RELAYS AND RELAY SYSTEMS ASSOCIATED WITH ELECTRIC POWER APPARATUS (R 1982)
This standard applies only to relays and relay systems used to protect and control power apparatus. It does not cover relays designed primarily for industrial control, for switching communication or...