The minimum phase to the neutral voltage at which corona effect occurs in transmission lines is known as

The minimum phase to the neutral voltage at which corona effect occurs in transmission lines is known as:

1. Flash-over voltage
2. Damper voltage
3. Critical disruptive voltage
4. Occurrence voltage

Correct answer: 3. Critical disruptive voltage

The minimum phase to the neutral voltage at which corona effect occurs in transmission lines is known as critical disruptive voltage.