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SGK2007
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SGK2007

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5 May 2007
Hi all,

For my new project I am considering using of microcontroller based ct operated relays in place of motor protection circuit breakers. I will be employing an MCB in the motor incomer for short circuit protection. I would like to avoid using a bi-metallic relay. The CT operated microcontroller provides me with several protection like phase reverse, dry run protection, highly reliable single phasing protection and seems better option. My project uses motors from 3HP to almost 400HP.

Any experience on such a replacement?
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