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How Does A Soft Starter Work?


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I want to know how a soft starter works. What is firing? Timing diagrams. What are the advantages of using soft starters over others? Applications of soft starters in the industry. How the torque and current behave when a motor is started by means of a soft starter until it reaches synchronous speed. It would be really helpful for me if anyone can give me some info regarding above facts. Thank You.


A Weerasinghe


Department of Electrical Engineering

University of Moratuwa


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Hello geobro


That is a very broad question and is very hard to answer.

If you want answers, you need to be more specific.

Have a look at http://www.lmphotonics.com/sstart.htm. This may answer some of your questions.


Best regards,


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