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What is distance protection relay? where & why we use this
relay?
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Answer Posted / venki
Distance protection relay is mostly used to detect the fault which occurred at a specified distance normally these are used in 66 kV and above Transmission levels. the total line is divided in to some zone for a specified distance and those zones are named as A,B,C and etc., if a fault is occurred it will indicate the zone where it is occurred.
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