phase converter contactor probelm?
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  1. #1
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    Default phase converter contactor probelm?


    Im looking for some clarification on wether my rotary phase converter contactor is working.
    I have a phase-quest RPC that I bought used.
    When I hit the button it clicks on and the run light stays on. There is power to L1 and L2.
    No power on 3 phase side when I connect multimeter and start RPC.
    The blue button the contactor seems to be between 1 and 0 labels. Is this normal?
    Picture of contactor:

    img_20200518_081917.jpg

  2. #2
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    Default

    FWIW, you will probably get better help in the Transformer, Phase Converter and VFD sub-forum.


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    Default

    Whatever you do, don't try to manually push that contactor.

  4. #4
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    Default

    You might want to see if you can power up just the control voltage, disconnected from power lines, and then check continuity with the meter, checking also to see that the appropriate ones close and open when they should.

    If that is impossible, or impractical, then disconnect all power, and check through all the contactors, making sure they are wired how they should be, and make contact when they pull in.

    You may need to make your own wiring diagram if the operation is not obvious to you. I do not think the manufacturer offers service data.

    With used equipment, there is no guarantee that it is hooked up right inside, or that it has not been modified in some odd way that you do not know about.


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