Three phase induction motor 150KW/4P motor starts on star -delta starting method. But in Soft starter starting?

thre phase induction motor 150 KW/4P starts satisfactorily on Star Delta starter but it gives problem while starting on Soft starter. All parameters are checked . What would be the problem?

3 Answers

  • 7 years ago
    Best Answer

    Go back to star/delta starting.

  • 7 years ago

    I presume you have converted star/delta starter to direct supply? Yes of course you have.

    And keep a constant supply at the VSD?

    Please give more info.

  • Irv S
    Lv 7
    7 years ago

    Too much resistance in the soft start circuit?

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