why neutral and earth should not be connected on 3 phase
440v/50c/s supply at consumer side. where as on
25kv/ac/50c/s railway traction substation neutral and earth
will be connected and track at substation. and track will
act as neutral and earth. Reasons for this is needed
urgently
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Answer Posted / jicks patel
voltage level at consumer side is generally kept low (230v
or 440v),any shocking moment should face fuse sensually.so
no more cost required like earthing.
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