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lllg,llg,ll,lg,lll which fault is severe and why?
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Answer Posted / harshal nemade
as symmetrical fault that is L-L-L is more dangerous. but if we calculating the fault current the LG fault current is very large as compared to other fault so from this we can conclude that LG fault is more severe than other fault.
as LG fault is take place between line and ground and ground potential is assume as zero and also having zero impedance so this fault current is very larger which is 1.5 time L-L-L fault. so according to this theory LG fault is more severe than other fault.
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