Power Systems
A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage?

 41.075 kV/phase
 17.32 kV/phase
 34.64 kV/phase
 82.15 kV/phase

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