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What is the restricted earth fault protection and why we use it?

Electrical
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Question added by ayman abdelrahem ahmed ahmed , Maintenance and Electrical Testing Engineer , الشركة المصرية لنقل الكهرباء
Date Posted: 2014/02/02
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Deleted user
by Deleted user

 

we use it to protect the busduct from CT to LV panel, where it will detect the current coming back to the CT the the nutral.

Mechanism: the relay will calculate the current coming to LV panel and out, where the net should be ZERO.

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