The corona loss of a 3-phase transmission line is 100 kW at 60 kV/phase and 25 kW at 50 kV/phase. The disruptive critical voltage is

(A) 40 kV (B) 43.6 kV (C) 49.6 kV (D) 50 kV
need an a explanation

1 Answer

Answer :

The corona loss of a 3-phase transmission line is 100 kW at 60 kV/phase and 25 kW at 50 kV/phase. The disruptive critical voltage is 40 kV

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