February 10, 2017

Write some Factors that Influence Motor Efficiency.

Factors that influence motor efficiency include:

  1. Age - New motors are more efficient.
  2. Capacity - As with most equipment, motor efficiency increases with the rated capacity.
  3. Speed - Higher speed motors are usually more efficient.
  4. Type - For example, squirrel cage motors are normally more efficient than slip-ring motors.
  5. Temperature - Totally-enclosed fan-cooled (TEFC) motors are more efficient than screen-protected drip-proof (SPDP) motors.
  6.  Rewinding - Rewinding of motors can result in reduced efficiency.
  7.  Load - it is useful to determine both the load and efficiency when assessing a motor’s performance.


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