Hyd pump CB keeps tripping

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Thread: Hyd pump CB keeps tripping

  1. #1
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    Default Hyd pump CB keeps tripping

    I have a hydrulic pack that keeps tripping the breaker. The machine is a Daewoo Puma 200. Im not sure how to check to see if its a bad motor or a restriction in the system causing the pack to get very hot and then shut down.

    Thanks for any ideas

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    Community Moderator Al_The_Man's Avatar
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    Measure current on all three phases for close match and no more than FLA marked on motor plate.
    If very unbalanced current then it could be the motor, if all phases the same then loading is most likely the cause.
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.


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    Default Re: Hyd pump CB keeps tripping

    Another consideration to check as well is over time bi-metal type brakers that have heated up can alter there current carrying capability , making them trip at a lower amperage flow.
    A lot of machines came with this type of current protection.
    If your Full load amperage on all legs are close to each other and within your motors load specs and your not exceeding the capacity of the machine it would be something to look at.
    On some machines that don't have a dedicated motor braker but share all current loads through one primary braker then all electrical loads would have to be totaled to see if current exceeds the range of the braker.



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    Community Moderator Al_The_Man's Avatar
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    Default Re: Hyd pump CB keeps tripping

    Quote Originally Posted by big iron View Post
    Another consideration to check as well .
    Hopefully after 5yrs the OP has solved the problem!
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.


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Hyd pump CB keeps tripping
Hyd pump CB keeps tripping