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In BLDC motor field winding is kept on _______________(a) Stator(b) Rotor(c) Can be placed anywhere(d) AbsentThis question was addressed to me by my college director while I was bunking the class.Question is taken from BLDC Motors in chapter Synchronous Machines of DC Machines

Answer»

The correct choice is (b) Rotor

Explanation: Unlike conventional DC MOTOR, BLDC motor has its field WINDING rotating. Unlike PMDC motor field winding is present. THUS, it is placed on rotor. In BLDC motor we have fixed commutators, with brush gear rotating with speed of rotor field.



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