Question

A dc motor is connected in the short-shunt configuration, but the series and the shunt windings get interchanged by mistake and the motor is connected to the rated voltage?

(a) neither of the windings get short-circuit

(b) series winding gets overloaded

(c) shunt winding gets overloaded

(d) both of the winding get overloaded

This question was addressed to me during an interview.

My doubt stems from Efficiency and Testing of DC Machines topic in division DC Machines of Electrical Machines

Answer 1

The correct answer is (a) neither of the windings get short-circuit

To elaborate: In the short shunt configuration, the winding interchanging does not change the configuration of the set up so none of the winding get affected.