This guide is developed to assist users in selecting the appropriate level of protection system redundancy for power system reliability based on the best industry practices. It defines protection system redundancy and examines the effect of protection system components on redundancy. Different concepts of redundancy as related to physical location, instrument transformer, relay scheme, and communication systems are discussed. Redundancy application considerations for various power system elements are presented. (An errata for this standard is available at https://standards.ieee.org/wp-content/uploads/2022/12/C37.120-2021_errata.pdf)
- Sponsor Committee
- PE/PSRCC - Power System Relaying and Control
Learn More About PE/PSRCC - Power System Relaying and Control - Status
- Active Standard
- PAR Approval
- 2017-09-28
- Board Approval
- 2021-11-09
- History
-
- ANSI Approved:
- 2022-04-29
- Published:
- 2022-02-28
Additional Resources
- Erratas
- C37.120-2021_errata.pdf
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More About IEEE Power and Energy Society - Sponsor Committee
- PE/PSRCC - Power System Relaying and Control
Learn More About PE/PSRCC - Power System Relaying and Control - Working Group
-
C31 - Protection System Redundancy for Power System Reliability
- IEEE Program Manager
- Malia Zaman
Contact Malia Zaman - Working Group Chair
- Solveig Ward
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