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  1. #41
    Our new friend needs to reach 10 posts to get to the next flight level
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    Re: Circuit Breaker Simulation

    Yes, they "measure" the current that flows through them by heating a bimetallic element with the current that flows through it.
    If there is enough current, the bimetallic element will push aside a latching element and the circuit breaker opens some contacts and the current is interrupted. Note that in most C/Bs the popping out button is not directly linked with the contacts, but uses the bimetallic element to close the circuit again. This way one can't stop the C/B from disconnecting, even if the button is kept pressed.

    This has an implication for a correct simulation: It needs some time for the bimetallic element to cool down, and during this time a pushed button will not stay in and the contacts are not connected. Only if after the cool-down time the button is pushed in, the C/B is actually reset.

  2. #42
    25+ Posting Member
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    Re: Circuit Breaker Simulation

    I didn't see this thread.
    I think it is better tu put here the link with my circuit breakers panel.




    Quote Originally Posted by crossaint View Post
    This has an implication for a correct simulation: It needs some time for the bimetallic element to cool down, and during this time a pushed button will not stay in and the contacts are not connected. Only if after the cool-down time the button is pushed in, the C/B is actually reset.
    That's true! I will add this "function" in the arduino software to get this behavior.

    Arturo.

  3. #43
    150+ Forum Groupie Atomic_Sheep's Avatar
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    Re: Circuit Breaker Simulation

    Quote Originally Posted by crossaint View Post
    Yes, they "measure" the current that flows through them by heating a bimetallic element with the current that flows through it.
    If there is enough current, the bimetallic element will push aside a latching element and the circuit breaker opens some contacts and the current is interrupted. Note that in most C/Bs the popping out button is not directly linked with the contacts, but uses the bimetallic element to close the circuit again. This way one can't stop the C/B from disconnecting, even if the button is kept pressed.

    This has an implication for a correct simulation: It needs some time for the bimetallic element to cool down, and during this time a pushed button will not stay in and the contacts are not connected. Only if after the cool-down time the button is pushed in, the C/B is actually reset.
    Very interesting, wasn't aware of this, thanks for pointing it out.

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