Answer / shan80

u know that there is two type three phase supply star and
delta. delta connection has three wires. these wire are
three phases only there is no nutral and in star there is
fout wire three for phase and one for neutral. make sure
what is ur connenction type.
and ur idea to connect these phases each other for making
nutral point is absolutly wrong it is a dead short circuit
and become harmful.
whereas the point of neutral in star is junction of only
one end of three different coils (coil of transformer,
motor or genrator etc.) and other ends representing three
phases.
i think u should clear with that.
thanks.

i am using auto transformer for starting of induction motor to provide reduse voltages...but the principle of a tansformer according to definition"which transform energy to on circuit to another circuit with constant power and constant frequency". so if i am using reduse voltage then current obsely hige because power is same.but we use auto transfarmer for starting of induction motor to give low current.but here according to definition we are giving hige current.

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