Why Motors are generally supplied with 3 core cables??? why
not 4C??
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Answer Posted / suburavichandran
only 3 phase motors are connected with such 3c cables. it is because the 4th core is used for neutral return particularly during unbalanced condition.It rises when each phase is connected to different single phase loads.since 3phase motors are balanced loads.there s no need for the 4th core i mean neutral.
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