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  1. Moltim

    Finding DC current breaking Capability of Circuit Breaker

    You appear to misundestand IEC. its referring to interrrupting an asymmetric current which consists of a dc and an ac component. I total + Sq Rt of i dc Sqrd = i ac sqrd Due to the dc-component, the short-circuit current will be asymmetrical for a certain time after the occurrence of the...

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