Answer Posted / natarajanramkumar

1.L.T (Low tension)=upto 1000 volts
2.H.T (High tension)=upto 11,000 volts
3.S.T (Super tension)=from 22,000 volts to 33,000 volts
4.E.H.T (Extra high tension)=33,000 volts to 66,000 volts

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