From Wikipedia, the free encyclopedia
Difference between Synchronous Motor & Induction Motor
[edit]
| Sr. No.
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Synchronous Motor
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Induction Motor
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| 1.
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It is not self starting.
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It is self starting.
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| 2.
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It run at constant speed known as synchronous speed.
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Its speed decrease with load.
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| 3.
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The motor can be operated at all power factors whether lagging or leading.
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The motor operates always lagging power factors only.
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| 4.
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It can be used for power factor correction in addition to supplying torque to drive mechanical load.
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It can be used for driving mechanical loads only.
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| 5.
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It is made efficient than induction motor.
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Its efficiency is lesser than synchronous motor.
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| 6.
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Cost is more.
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Cheaper than synchronous motor.
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| 7.
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It has to be synchronized.
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Induction motor is not be synchronized.
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| 8.
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Its construction is complicated.
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Its construction is simple.
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| 9.
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The synchronous motor has a tendency to hunt.
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They do not hunt.
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| 10.
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The motor requires a D.C. exciter.
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No exciter is required.
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