1.

What is the principle of dynamic braking of the DC motor with separate excitation and how is this done in practice?

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Answer:

In Dynamic Braking, a braking resistor Rb is connected across the armature as soon as the DC motor is DISCONNECTED from the supply MAINS. The motor now works as a generator, PRODUCING the braking torque. For the braking operation in Dynamic Braking, the motor is connected in TWO ways.



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