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Methods for three-phase winding data verification

  • February 2017
  • Number of views: 6292
  • Article rating: 3.5

Tom Bishop, P.E.
EASA Senior Technical Support Specialist

One of the main objectives in rewinding is to maintain the original performance characteristics of the machine. Our focus with this article will be on three-phase motor stator windings. If it is known that the winding in the motor was original and there is certainty that the as-found data is correct, the original winding can be duplicated with confidence by using the as-found data. However, in some cases there is uncertainty that the as-found winding had original factory data. In those cases, extra steps need to be taken as described here.

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Getting The Most From Your Electric Motors

Getting The Most From Your Electric Motors - coverThis 40-page booklet provides great advice for obtaining the longest, most efficient and cost-effective operation from general and definite purpose electric motors.

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Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

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Recommended Practice for the Repair of Rotating Electrical Apparatus
This is a must-have guide to the repair of rotating electrical machines. Its purpose is to establish recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

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EASA Technical Manual

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