Electrician Red Seal · Question
What is the primary method of stopping a motor with 'dynamic braking'?
Dynamic braking involves disconnecting the motor from its AC supply and then applying DC voltage to one or more stator windings. This creates a stationary magne
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Question: What is the primary method of stopping a motor with 'dynamic braking'?
Answer options: ✅ Applying a DC voltage to the stator windings after disconnecting the AC supply.
- Reversing the phase sequence of the AC supply.
- Using mechanical friction brakes.
- Short-circuiting the rotor windings.
Correct answer: Applying a DC voltage to the stator windings after disconnecting the AC supply.
Explanation: Dynamic braking involves disconnecting the motor from its AC supply and then applying DC voltage to one or more stator windings. This creates a stationary magnetic field that rapidly brings the rotor to a stop by inducing eddy currents.
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