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lllg,llg,ll,lg,lll which fault is severe and why?
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Answer Posted / bhuvanagiri ramesh
LG fault is most severe fault at the alternator terminals than three phase fault, because zero sequence reactance is less at the generator and fault current incase of LG fault is three times the positive sequence current. As the fault location moves away from alternator zero sequence reactance increases and three phase fault becomes more severe.
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