Answer / teju

carona is phenomenon of violet glow,hissing noice,ozon gas
formation in overhead transmission line.but i dont know it's
purpose.if anyone is knowing then plz send it to me at
tawadetejswita@gmail.com

Answer / subramanyam

the ionisation of the air near the surface of the power
conductor is called as corona.due to this insulation failure
of conductor occur.due to corona their will be a real power
loss called corona loss.corona is acts as a protecting cover
for the lighting surges

there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

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