Formation of Corona

What is Corona?

• A) A type of cloud formation
• B) A visual discharge phenomenon in transmission lines
• C) A type of electrical transformer
• D) A type of insulating material

What is the minimum voltage level required for corona to occur?

• A) 100 kV
• B) 200 kV
• C) 300 kV
• D) 400 kV

What is the effect of corona on power loss in transmission lines?

• A) Increases power loss
• B) Decreases power loss
• C) No effect on power loss
• D) Cannot be determined

Which of the following is a factor that affects corona?

• A) Humidity
• B) Temperature
• C) Line voltage
• D) All of the above

What is the primary reason for the formation of corona?

• A) Insufficient insulation
• B) High conductor diameter
• C) High conductor spacing
• D) High line voltage

What is the effect of corona on audible noise?

• A) Increases audible noise
• B) Decreases audible noise
• C) No effect on audible noise
• D) Cannot be determined

What is the name of the instrument used to measure corona?

• A) Coronometer
• B) Voltmeter
• C) Ammeter
• D) Ohmmeter