On motor star delta how does it work?

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Why star delta starter is preferred with induction motor?
Posted by:
Ahmed Fathi
04-December-2017

Question added by zeeshan kamal , ASSISTANT ELECTRICAL ENGINEER , Sri Venkateshwara Multiplex pvt ltd
Date Posted: 2016/04/09

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1 Answers

by Muhammad Usman , Assistant Manager Operations , Lahore Electric Supply Company

When a motor is started it needs high starting current which causes voltage disturbances. So, motor is started in star condition and when it gains proper speed then motor runs in delta connection.

Star delta starter used for motors greater than 5HP (4KW)

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