why it is in star to delta form of Synchrounus generator
and delta to star form of Generator Transformer (or step up
transformer)



why it is in star to delta form of Synchrounus generator and delta to star form of Generator Trans..

Answer / suhas

after generating voltage, it has to be transmitted....to
transmit we use delta connection as it needs only 3 wires
which saves money...steppin up of voltage is done to
decrease losses in transmission...so step up transformer
has Y-del connection...in the receiving end(step down) we
can use del-del or del-Y...by using del-Y connection we hv
d flexibility of selecting the 3 phase and 1 phase
voltage... this method is done usually for
distribution...for further transmisssion, in swithing sub
stations, the step down trafo will be del-del....with
tertiary as star.....

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