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synchronous machine

American  

noun

Electricity.
  1. an alternating-current machine in which the average speed of normal operation is exactly proportional to the frequency of the system to which it is connected.


synchronous machine British  

noun

  1. an electrical machine, whose rotating speed is proportional to the frequency of the alternating-current supply and independent of the load

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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By using current-energized synchronous machine principles, BMW says it can achieve a higher energy density, especially in the rear motor, which in turn allows the automaker to achieve levels of performance it expects out of its 7-series vehicles.

From The Verge

By using current-energized synchronous machine principles, BMW says it can achieve a higher energy density, especially in the rear motor, which in turn allows the automaker to achieve levels of performance it expects out of its M-series vehicles.

From The Verge

Instead, the motors operate on the principle of a “current-energized synchronous machine,” which BMW describes as “the excitation of the rotor is triggered by the precisely metered supply of electrical energy.”

From The Verge