Physics · Transmission Lines
Which of the following statements best describes the Corona effect in Extra High Voltage (EHV) transmission lines?
- 1It is the effect where the transmission line starts to resonate at its natural frequency due to external disturbances.
- 2It is the effect where the transmission line heats up excessively due to high current flow.
- 3It is the phenomenon where the insulation of the transmission line gets permanently damaged due to high voltage.
- 4It is the phenomenon where a bluish glow appears along with a hissing noise around the conductors.✓
Correct answer
It is the phenomenon where a bluish glow appears along with a hissing noise around the conductors.
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