Which of the following is dynamic braking?(a) Reversal of field connections(b) Reversal of armature connections(c) Addition of equal and opposite field(d) Removal of armature circuit from current machine circuitThis question was addressed to me during an online interview.The question is from Braking of DC Motors in division DC Motors of DC Machines

Which of the following is dynamic braking?(a) Reversal of field connec

1.	Which of the following is dynamic braking?(a) Reversal of field connections(b) Reversal of armature connections(c) Addition of equal and opposite field(d) Removal of armature circuit from current machine circuitThis question was addressed to me during an online interview.The question is from Braking of DC Motors in division DC Motors of DC Machines
Answer» Right choice is (d) Removal of ARMATURE circuit from current machine circuit Easiest EXPLANATION: Reversal of the connections of armature is the METHOD called plugging. In DYNAMIC braking we remove the armature circuit and connect it to different resistor, with FIELD circuit still connected to the external supply.

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