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1. Outline What is a Corona effect Type of Corona effect Corona effect used What is Electrostatic air cleaning Advantages of Corona effect Disadvantages of Corona effect 1

2. Outline What is a Corona effect Type of Corona effect Factors Affecting Corona Discharge Corona effect used What is Electrostatic air cleaning Advantages of Corona effect Disadvantages of Corona effect 2

3. What is a Corona effect The ionization of air surrounding the high voltage transmission lines causing the conductors to glow, producing a hissing noise, is called Corona Discharge or Corona Effect. 3

4. Type of corona effect There are several types of corona effect, including Positive corona Negative corona Silent corona Brush corona 4

5. Factors Affecting Corona Discharge Supply Voltage Conductor Surface Air Density Factor Spacing between Conductors Atmosphere 5

6. The corona effect is used in some welding and cutting processes, such as plasma arc welding and cutting. 7 The corona effect is used in ozone generators to produce ozone, which is used for air purification and water treatment. The corona effect is used in electrostatic air cleaning systems to remove particles from the air. The system uses a corona discharge to ionize the air and attract particles to a collection plate. The corona effect is used in high-voltage power transmission to detect power line faults and to monitor the health of power line insulators.

7. What is Electrostatic air cleaning Electrostatic air purification is a process that uses the corona effect to remove airborne particles from indoor air. The corona effect creates an electrostatic charge that attracts and captures airborne particles, such as dust, pollen, and other pollutants. 8

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9. Advantages Electrostatic air cleaners are very efficient at capturing smaller particles that may not be captured by other types of air filters. 10 Electrostatic air cleaners do not require a fan to force air through a filter, which makes them more energy-efficient than other types of air filters. Electrostatic air cleaners have a long lifespan and can last for many years with proper maintenance. Electrostatic air cleaners are easy to maintain and do not require frequent filter replacements.

10. The corona effect in electrostatic air cleaners can produce ozone, which can be harmful to human health and can lead to respiratory problems 11 Electrostatic air cleaners may not be effective at capturing larger particles or removing odors from the air. Electrostatic air cleaners can potentially re-release particles into the air if they are not cleaned or maintained properly. Electrostatic air cleaners can be more expensive than other types of air filters. Disadvantages