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Electrical Engineering · all questions

Synchronous Motors
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When the voltage applied to a synchronous motor is increased, which of the following will reduce ?

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When the excitation of an unloaded salient pole synchronous motor suddenly gets disconnected

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The effect of increasing the load on a synchronous motor running with normal excitation is to

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Synchronous motor always runs at

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A synchronous motor can operate at

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A pony motor is basically a

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The maximum power developed in a synchronous motor will depend on

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Armature of a synchronous machine is

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Synchronsizingpower of a synchronous machine is

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A synchronous motor installed at the receiving end substation operates with such an excitation that it takes power at lagging power factor. Now if the applied voltage of the synchronous motor goes down, the power factor of the synchronous motor will

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Synchronous motors are

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The standard full-load power factor ratings for synchronous motors are

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If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then

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The speed regulation of a synchronous motor is always

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The construction of a synchronous motor resembles

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A three-phase synchronous motor will have

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The operating speed of a synchronous motor can be changed to new fixed value by

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The minimum armature current of the synchronous motor corresponds to operation at

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If the field circuit of an unloaded salientpole synchronous motor gets suddenly open-circuited, then

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A synchronous motor can be started by

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