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  • Users: michalakis
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  1. michalakis

    Sensitive Earth Fault relay operation for faulted o/h lines

    In our electric utility we have been using Sensitive Earth Fault (SEF) relays for the protection of the 11 kV overhead distribution lines, and they are set for operation at 6 Amps and 5 seconds time delay. Their purpose is to detect fallen conductors of o/h lines. We provide this protection...

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