Single Phase Induction Motor with Soft Starter

Authors: Kapil Padlak, Vivek Sahu, Puran Vishwakarma, Rameshwar Chherkee, Nikita Sahu

Country: India

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Abstract: The project is designed to provide a soft and smooth start to the induction motor. An induction motor during the initial starting condition draws up much higher current than its capacity and the motor instantly reaches the full speed.
This results in a mechanical jerk and high electrical stress on the windings of the motor.

Sometimes the windings may get burnt. The induction motor should start smoothly and gradually catch up the speed for a safer operation.

This project is designed to give a soft start to the induction motor based on the TRIAC firing triggered by heavily delayed firing angle during starting and then gradually reducing the delay till it reaches zero voltage triggering.

This results in low voltage during start and then gradually to full voltage. Thus the motor starts slowly and then slowly picks up to full speed.

This project consists of one TRIAC in the power circuit, one TRANSISTOR in the driving circuit, Opto-coupler for bridging the circuit, and the output of which is connected to a lamp representing the coil of the induction motor.
When the supply is given to the circuit resulting in delayed firing pulses during start and then gradually reducing the delay till the motor runs at full speed. The Output is fed through opto- coupler to trigger the TRIAC.

Keywords:

Paper Id: 230518

Published On: 2024-03-20

Published In: Volume 12, Issue 2, March-April 2024

Cite This: Single Phase Induction Motor with Soft Starter - Kapil Padlak, Vivek Sahu, Puran Vishwakarma, Rameshwar Chherkee, Nikita Sahu - IJIRMPS Volume 12, Issue 2, March-April 2024.

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