Question
Download Solution PDFThe plugging provides ___________ braking torque in comparison to rheostatic and regenerative braking systems.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFPlugging:
- Plugging braking of induction motor is done by interchanging connections of any two phases of the stator with respect of supply terminals
- Plugging is used to reduce the speed of motors
- The supply voltage V and the induced voltage Eb (back emf) will act in the same direction
- The effective voltage across the armature will be (V + Eb) which is almost twice the supply voltage
- During plugging external resistance is also introduced into the circuit to limit the flowing current
- Thus, the armature current is reversed and high braking torque is produced
- It provides the highest braking torque in comparison to rheostatic and regenerative braking systems.
Last updated on Jun 16, 2025
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