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  • aarthivg

    aarthivg

    @aarthivg-HH344f • Jun 9, 2012

    A coupling capacitor is used to block the flow of d c while allowing a c to pass.
    It is also known as blocking capacitor or stopping capacitor. They are used in substations within a "wave trap" where communication is done by a.c. power line and any d.c. signals need to be attenuated or blocked.

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