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Drive an expression for maximum torque for synchronous motor. What happen when increasing the load on synchronous motor until exceeding the maximum torque.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 3SQ: What are typical applications of synchronous motors?

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Concept explainers

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

Question

Drive an expression for maximum torque for synchronous motor. What happen when increasing the load on
synchronous motor until exceeding the maximum torque.

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