Improved motors for utility applications. Final report
- 1 October 1982
- report
- Published by Office of Scientific and Technical Information (OSTI)
Abstract
The objective of EPRI RP-1763 Improved Motors for Utility Applications, is to evaluate the reliability and performance of present powerhouse motors and to identify design and operational characteristics which, through advanced development, offer the potential of increased reliability, performance, and efficiency. The initial activity of this project was an Industry Assessment Study to develop a data base of utility motor applications, operating factors, failures, causes of failures, and impacts of failures on the operation of the generating station. Booz-Allen and Hamilton, a consultant to General Electric on this project, conducted a survey of 132 generating units and obtained data on 4800 low- and medium- voltage motors with ratings greater than 100 hp. Results are presented relating motor failures to units, utilities, manufacturers, and applications. A separate survey was undertaken with the goal of documenting utility industry experience in using vacuum devices to switch motors in generating station auxiliaries systems. Eleven utilities were identified as having installations involving vacuum switching devices at 12 generating stations representing 122 motors. Results are presented in Chapter 7.Keywords
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