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Thread: Vfd 415 motor 240v supply.

  1. #1
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    Default Vfd 415 motor 240v supply.

    Hi, i saved a 5.5kw, 2 pole, 2850rpm, 415v, 10.2 amp motor from the bin at work, its wired delta.
    Can i run this as 240v 3 phase on a single phase vfd?
    Is this easy to match the vfd?

    Many thanks for reading.

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    Default Re: Vfd 415 motor 240v supply.

    Are you sure it is delta, small three phase motors that use a 415v supply are usually wired star which would allow you to connect as delta for 240v three phase. Dave



  3. #3
    ericks
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    Default Re: Vfd 415 motor 240v supply.

    Can you post a pic of the motor plate?



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    Default Re: Vfd 415 motor 240v supply.

    Quote Originally Posted by ericks View Post
    Can you post a pic of the motor plate?
    Also a pic of the internal connections in the terminal box.



  5. #5
    ericks
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    Default Re: Vfd 415 motor 240v supply.

    Quote Originally Posted by Bdrangdo View Post
    Also a pic of the internal connections in the terminal box.
    That would be nice



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    Default

    Its still dark, after work i will open her up.

    Edit;

    The wires appear to be not bridged in any way.

    Attached Thumbnails Attached Thumbnails Vfd 415 motor 240v supply.-20190117_055541-jpg  
    Last edited by Zenji; 01-17-2019 at 03:08 AM.


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    Default Re: Vfd 415 motor 240v supply.

    It does look like it is delta connected for 415v, it is probably designed to be used with a star delta starter. You can get inverters that will step up to 415v from 240v but they are pricey for a motor that size, they sell for about 1500 GBP in the UK. Dave



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    Default

    Thanks Dave, i may have sell and buy another.

    Edit;

    It appears to be star delta starter setup, i dont have access to a multimeter until Friday night.

    Attached Thumbnails Attached Thumbnails Vfd 415 motor 240v supply.-20190117_185818-jpg  


  9. #9
    ericks
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    Quote Originally Posted by Zenji View Post
    Its still dark, after work i will open her up.

    Edit;

    The wires appear to be not bridged in any way.
    Its a delta motor at 415 so sorry you shouldnt use it cause supplying 230v will cause much reduced torque. Best to buy the correct motor



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    Quote Originally Posted by ericks View Post
    Its a delta motor at 415 so sorry you shouldnt use it cause supplying 230v will cause much reduced torque. Best to buy the correct motor
    Afraid so, thank you to all who posted.

    Wisdom results from foolishness!


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Vfd 415 motor 240v supply.

Vfd 415 motor 240v supply.