what is the difference between earth and neutral?
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Answer Posted / melinbalan
normally speaking, earth and neutral is having the common
point at generating stations.
But neutral is treated as the "return" path of the supply.
But when we are transferring supply to a long distance , it
needs 4 conductors, 3 for phase and the last one for
neuatral(return).So it is getting expensive ,
so normally we are earthed at the generating stations and
only taking 3 condutors till it reach the i/p of the
Distribution transformer(i/p is delta) and from the
secondary(star) we are starting neutral(altogether 4 wires).
And this neutral is earthed there.
The earth is also used for protection.
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