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Consider the following statements regarding corona:
It causes radio interference.
It attenuates lightning surges.
It causes power loss.
It is more prevalent in the middle conductor of a transmission line employing flat conductor configuration.
Which of the above statements are correct?
- a)Only 1, 2 and 3
- b)Only 1, 2 and 4
- c)1, 2, 3 and 4
- d)Only 3 and 4
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements regarding corona: It causes radio...
Explanation:
Corona is a phenomenon that occurs in high voltage transmission lines and electrical equipment. It is characterized by the ionization of the surrounding air due to the high electric field gradient present. Corona can have several effects, and the given statements are as follows:
1. It causes radio interference:
Corona produces electromagnetic radiation, which can interfere with radio signals. The ionized air creates a conductive path for the radio waves, leading to interference. This interference can affect communication systems and cause disruptions in radio transmissions.
2. It attenuates lightning surges:
Corona can provide a partial discharge path for lightning surges. When a lightning surge occurs, corona can help in dissipating some of the energy and reducing the amplitude of the surge. This attenuation effect can protect the transmission lines and electrical equipment from the damaging effects of lightning strikes.
3. It causes power loss:
Corona results in power loss due to the energy dissipation in the form of electromagnetic radiation and heat. The ionization of air around the conductors leads to energy losses, reducing the overall efficiency of the transmission line. This power loss is undesirable and can affect the performance of the system.
4. It is more prevalent in the middle conductor of a transmission line employing flat conductor configuration:
Corona is more likely to occur in the middle conductor of a transmission line employing a flat conductor configuration. This is because the electric field is concentrated in the middle conductor due to the proximity of the other conductors. The increased electric field strength in the middle conductor increases the likelihood of corona discharge.
Therefore, all the given statements (1, 2, 3, and 4) are correct. Corona can cause radio interference, attenuate lightning surges, cause power loss, and is more prevalent in the middle conductor of a transmission line employing a flat conductor configuration.
Corona is a phenomenon that occurs in high voltage transmission lines and electrical equipment. It is characterized by the ionization of the surrounding air due to the high electric field gradient present. Corona can have several effects, and the given statements are as follows:
1. It causes radio interference:
Corona produces electromagnetic radiation, which can interfere with radio signals. The ionized air creates a conductive path for the radio waves, leading to interference. This interference can affect communication systems and cause disruptions in radio transmissions.
2. It attenuates lightning surges:
Corona can provide a partial discharge path for lightning surges. When a lightning surge occurs, corona can help in dissipating some of the energy and reducing the amplitude of the surge. This attenuation effect can protect the transmission lines and electrical equipment from the damaging effects of lightning strikes.
3. It causes power loss:
Corona results in power loss due to the energy dissipation in the form of electromagnetic radiation and heat. The ionization of air around the conductors leads to energy losses, reducing the overall efficiency of the transmission line. This power loss is undesirable and can affect the performance of the system.
4. It is more prevalent in the middle conductor of a transmission line employing flat conductor configuration:
Corona is more likely to occur in the middle conductor of a transmission line employing a flat conductor configuration. This is because the electric field is concentrated in the middle conductor due to the proximity of the other conductors. The increased electric field strength in the middle conductor increases the likelihood of corona discharge.
Therefore, all the given statements (1, 2, 3, and 4) are correct. Corona can cause radio interference, attenuate lightning surges, cause power loss, and is more prevalent in the middle conductor of a transmission line employing a flat conductor configuration.
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Community Answer
Consider the following statements regarding corona: It causes radio...
Corona causes:
- Radio interference
- Power loss
- It reduces the magnitude of lightning (&) switching
- It is also more prevalent in the middle conductor in a flat conductor configuration.
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Consider the following statements regarding corona: It causes radio interference. It attenuates lightning surges. It causes power loss. It is more prevalent in the middle conductor of a transmission line employing flat conductor configuration. Which of the above statements are correct?a)Only 1, 2 and 3b)Only 1, 2 and 4c)1, 2, 3 and 4d)Only 3 and 4Correct answer is option 'C'. Can you explain this answer?
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