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IEEE 1290 Document Information:
Title
Guide for Motor Operated Valve (MOV) Motor Application, Protection, Control, and Testing in Nuclear Power Generating Stations
The Institute of Electrical and Electronics Engineers, Inc.
Publication Date:
Dec 26, 1996
Scope:
Foreword
Motors used to drive valve operators in nuclear power generating stations are discussed. Guidelines to evaluate the adequacy of motors used to drive valve operators; to provide recommendations for motor application; and to provide methods for protection, control, and testing of motors used for valve operation are presented.
Motor operated valves (MOVs) have historically presented both electrical and mechanical problems to the engineering community. Since a complete evaluation of MOV applications requires both electrical and mechanical disciplines, no one existing document covers MOVs in comprehensive manner. As a result, MOV application are evaluated using a wide array of existing standards and other documents. Thus, it is difficult to assemble all the supporting material to address all issues relating to MOVs and valve actuator motors (VAMs).
This guide provides references to other published documents as applicable. This guide presents issues and suggestions for consideration in the application, protection, control, and testing of VAMs. It specifically attempts to cover topics not found in existing IEEE or other easily accessible documents. This guidance is an accumulation of recommendations and suggested solutions to problems based on experience.
The reader is cautioned to use this guide in conjunction with applicable IEEE documents and new solutions to VAM problems that are evolving continually. Due to the dynamic nature of issues concerning MOVs, this document cannot be all-inclusive, and the user should search for information and solutions beyond this document.
Limit and torque switch settings have also presented problems to the engineering community. Their settings are dependent upon many complex factors. Guidance for setting these devices is outside the scope of this document, but this will be considered for a future revision.
This guide is presented in a logical progression of topics, their interrelationships, and their complexities.
This guide was prepared by Working Group 4.4 of Subcommittee 4, Nuclear Power Engineering Committee.
Scope
This guide applies to motors used to drive valve operators in nuclear power generating stations.
Keywords:
- valve operators
- motor control
- motor testing
- valves
- valve operation
- motor protection
- nuclear power
- motor application
- nuclear power generating stations
- motors
- generating stations
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