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Thread: relay ptc

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  1. 09-09-2009, 03:35 PM #37
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    nike123
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    Re: relay ptc

    Quote Originally Posted by paul_h View Post
    CSIR?
    capacitor start, induction run?
    Could be wrong, but if I saw that without the PTC relay and just a normal electro mechanical relay it would be CSIR

    No! Check how capacitor is diferently conected in CSIR.



    RSCR (resistant start capacitor run): capacitor is constantly connected at start winding. Run winding is fed directly at start and thru condenser at normal operation.

    CSIR (capacitor start inductive run): capacitor is connected at start winding only during start. When current fall, capacitor (and start winding) is disconnected and motor runs only on run winding.
    Last edited by nike123; 09-09-2009 at 03:46 PM.
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