Corona usually occurs when the electrostatic stress in air around the conductor

MCQ Practice

Corona usually occurs when the electrostatic stress in air around the conductor exceeds

Subject: Electrical EngineeringTopic: Transmission And Distribution

6.6 kV (r.m.s. value)/cm

11 kV (r.m.s. value)/cm

22 kV (maximum value)/cm

30 kV (maximum value)/cm

Correct Answer: D