The square root of the ratio of line impedance and shunt admittance is called the (a) surge impedance of the line (b) conductance of the line (c) regulation of the line (d) none of the above Answer : (a) surge impedance of the line...
Transmission voltage of ll kV is normally used for distances upto (a) 20—25 km (b) 40—50 km (c) 60—70 km (d) 80—100 km Answer : (a) 20—25 km...
For transmission of power over a distance of 500 km, the transmission voltage should be in the range (a) 150 to 220 kV (b) 100 to 120 kV (c) 60 to 100 kV (d) 20 to 50 kV Answer : (a) 150 to 220 kV...
Why does surge impedance loading (SIL) increase with increase in voltage level? Answer : Answer: SIL varies as the square of the operating voltage, so SIL increases with increase in voltage level...
Most of the high voltage transmission lines in India are (a) underground (b) overhead (c) either of the above (d) none of the above Answer : (b) overhead...
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