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The following torque expression: Te=-isirMmaxsinθr is applicable in a single phase cylindrical rotor synchronous machine when the rotor is __________

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in Electrical Machines by (135k points)
The following torque expression: Te=-isirMmaxsinθr is applicable in a single phase cylindrical rotor synchronous machine when the rotor is __________

(a) revolving

(b) stationary

(c) revolving or stationary

(d) none of the mentioned

The question was asked during an online interview.

Query is from Elementary Synchronous Machines in portion Basic Concepts in Rotating Machines of Electrical Machines

1 Answer

+1 vote
by (888k points)
Correct option is (c) revolving or stationary

To explain I would say: The torque expression is applicable whether the rotor is revolving or stationary.

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