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A stationary alternator is connected to the infinite bus. It should not be connected because ____________

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A stationary alternator is connected to the infinite bus. It should not be connected because ____________

(a) it will get short circuited

(b) it will operate as induction motor

(c) it will reduce bus bar voltage

(d) all of the mentioned

This question was posed to me in examination.

I need to ask this question from Measurement of Xd and Xq topic in division Synchronous Machines of Electrical Machines

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Correct answer is (a) it will get short circuited

The explanation is: When a stationary synchronous machine is connected to the infinite bus, due to lack of synchronism there will be short circuit in the machine as the impedance reached very negligible.

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