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The capacitor used in the auto transformer circuit for sodium vapour lamps, is for
- a)protection against accidental power failure
- b)controlling illumination level of the lamp
- c)for regulating discharge voltage
- d)for improving the power factor of the circuit
Correct answer is option 'D'. Can you explain this answer?
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Explanation:
The capacitor used in the auto transformer circuit for sodium vapor lamps is for improving the power factor of the circuit. The following points explain why a capacitor is used for this purpose:
1. Power Factor: Power factor is a measure of the efficiency of the electrical power distribution system. It is the ratio of the real power to the apparent power. A low power factor means that the system is not efficiently using the electrical power supplied to it.
2. Sodium Vapor Lamps: Sodium vapor lamps are high-intensity discharge lamps that are used for outdoor lighting. They are commonly used for street lighting, parking lot lighting, and other outdoor applications.
3. Auto Transformer: An auto transformer is a type of transformer that uses a single winding to step up or step down the voltage. It is used to provide the necessary voltage for the sodium vapor lamp.
4. Capacitor: A capacitor is an electronic component that stores electrical energy in an electric field. It is commonly used in electrical circuits to improve the power factor.
5. Improving Power Factor: When a capacitor is added to an electrical circuit, it can improve the power factor by reducing the amount of reactive power in the circuit. Reactive power is the power that is used to maintain the electric and magnetic fields in the circuit.
6. Benefits: Improving the power factor of the circuit can have several benefits, including reduced energy consumption, improved voltage regulation, and increased system efficiency.
Conclusion:
Therefore, the capacitor used in the auto transformer circuit for sodium vapor lamps is used to improve the power factor of the circuit, which can lead to several benefits for the electrical power distribution system.
The capacitor used in the auto transformer circuit for sodium vapor lamps is for improving the power factor of the circuit. The following points explain why a capacitor is used for this purpose:
1. Power Factor: Power factor is a measure of the efficiency of the electrical power distribution system. It is the ratio of the real power to the apparent power. A low power factor means that the system is not efficiently using the electrical power supplied to it.
2. Sodium Vapor Lamps: Sodium vapor lamps are high-intensity discharge lamps that are used for outdoor lighting. They are commonly used for street lighting, parking lot lighting, and other outdoor applications.
3. Auto Transformer: An auto transformer is a type of transformer that uses a single winding to step up or step down the voltage. It is used to provide the necessary voltage for the sodium vapor lamp.
4. Capacitor: A capacitor is an electronic component that stores electrical energy in an electric field. It is commonly used in electrical circuits to improve the power factor.
5. Improving Power Factor: When a capacitor is added to an electrical circuit, it can improve the power factor by reducing the amount of reactive power in the circuit. Reactive power is the power that is used to maintain the electric and magnetic fields in the circuit.
6. Benefits: Improving the power factor of the circuit can have several benefits, including reduced energy consumption, improved voltage regulation, and increased system efficiency.
Conclusion:
Therefore, the capacitor used in the auto transformer circuit for sodium vapor lamps is used to improve the power factor of the circuit, which can lead to several benefits for the electrical power distribution system.
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The capacitor used in the auto transformer circuit for sodium vapour lamps, is fora)protection against accidental power failureb)controlling illumination level of the lampc)for regulating discharge voltaged)for improving the power factor of the circuitCorrect answer is option 'D'. Can you explain this answer?
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