1.

Typical brushless motor doesn’t have ______________(a) Commutator(b) Permanent magnet(c) Electronic controller(d) Fixed armatureI had been asked this question during an online interview.My question is from BLDC Motors in division Synchronous Machines of DC Machines

Answer»

The correct choice is (a) Commutator

The explanation: A typical brushless motor has permanent magnets which rotate around a FIXED armature. An electronic CONTROLLER replaces the brush-commutator assembly of the brushed conventional DC motor, which continually switches the phase to the windings to KEEP the motor TURNING.



Discussion

No Comment Found

Related InterviewSolutions