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.
- Standard Committee
- PE/PSRCC - Power System Relaying and Control
- Status
- Inactive-Reserved Standard
- PAR Approval
- 2002-03-21
- Superseding
- C37.90-1989
- Board Approval
- 2005-09-22
- History
-
- ANSI Approved:
- 2012-05-23
- Published:
- 2006-01-31
- Reaffirmed:
- 2011-03-31
- Inactivated Date:
- 2022-03-24
Working Group Details
- Society
- IEEE Power and Energy Society
- Standard Committee
- PE/PSRCC - Power System Relaying and Control
- Working Group
-
C37.90_WG-I6 - Relay Electrical Power Apparatus Working Group
- IEEE Program Manager
- Malia Zaman
Contact Malia Zaman
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
No Active Projects
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
No Active Standards
These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.
No Superseded Standards
These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.
No Inactive-Withdrawn Standards
These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.
No Inactive-Reserved Standards