Generally accepted methods of protection for ac motors are provided. The functions necessary for adequate protection of motors based on type, size, and application are identified and summarized. The protective requirements of all motors in every situation is not purported to be detailed in this guide.
- Standard Committee
- PE/PSRCC - Power System Relaying and Control
- Status
- Inactive-Reserved Standard
- PAR Approval
- 2007-08-22
- Superseding
- C37.96-2000
- Board Approval
- 2012-12-05
- History
-
- ANSI Approved:
- 2014-11-05
- Published:
- 2013-02-20
- Inactivated Date:
- 2023-03-30
Working Group Details
- Society
- IEEE Power and Energy Society
- Standard Committee
- PE/PSRCC - Power System Relaying and Control
- Working Group
-
C37.96_WG - (Inactive) Guide for AC Motor Protection Working Group
- IEEE Program Manager
- Malia Zaman
Contact Malia Zaman - Working Group Chair
- Prem Kumar
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
PC37.96
Guide for AC Motor Protection
This application guide presents generally accepted methods of protection and monitoring of ac motors. It identifies and summarizes the functions necessary for adequate protection of motors based on type, size, and application. The methods discussed in this guide are based on typical installations. Information relating to protection requirements, including microprocessor-based protection systems, applications, and setting philosophy is provided to enable the reader to determine required protective functions for motor installations. Relay protection of squirrel-cage, wound rotor induction motors, and synchronous motors is presented herein. This guide also summarizes the uses of relays and devices, individually and in combination, so the user may select the necessary equipment, to obtain adequate motor protection. This guide is concerned primarily with the protection of three-phase integral horsepower motors and motors associated with adjustable-speed drives. This guide does not purport to detail the protective requirements of all motors in every situation. What it does provide is enough information and guidance for the user to implement adequate protection for most applications.
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
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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.
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