In DC motor, which of the following part can sustain the maximum temperature rise?(a) Field winding(b) Commutator(c) Slip rings(d) Armature windingI had been asked this question at a job interview.My query is from DC Motor Basics -1 in division DC Motors of DC Machines

In DC motor, which of the following part can sustain the maximum tempe

1.	In DC motor, which of the following part can sustain the maximum temperature rise?(a) Field winding(b) Commutator(c) Slip rings(d) Armature windingI had been asked this question at a job interview.My query is from DC Motor Basics -1 in division DC Motors of DC Machines
Answer» The correct answer is (a) Field WINDING The best I can explain: Maximum temperature rise can be sustained by field winding, as it is not INVOLVED in ROTARY PARTS. Field winding is present AWAY from rotary parts of the machine, so temperature rise in the machine will not produce any effect in machine rotations.

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