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A long overhead losses power transmission line is terminated with its characteristic impedance while the line is in operation
- a)a resonance of reactive powers occurs in the line
- b)the line becomes purely inductive
- c)the line becomes purely capacitive
- d)there is no reflected wave on the line
Correct answer is option 'D'. Can you explain this answer?
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A long overhead losses power transmission line is terminated with its ...
A long overhead losses power transmission line is terminated with its characteristic impedance while the line is in operation
When a long overhead power transmission line is terminated with its characteristic impedance, it means that the load impedance matches the characteristic impedance of the line. This condition is known as "matched impedance" and is commonly used to minimize reflections and maximize power transfer in transmission systems.
A resonance of reactive powers occurs in the line
When a transmission line is terminated with its characteristic impedance, there is no reflection of power back towards the source. As a result, there is no possibility of reactive power resonance occurring in the line. Reactive power resonance typically occurs when there are reflections of reactive power due to mismatched impedance.
The line becomes purely inductive
When a transmission line is terminated with its characteristic impedance, it does not change the nature of the line itself. The line will still have both resistance and reactance. Therefore, it does not become purely inductive.
The line becomes purely capacitive
Similarly, when a transmission line is terminated with its characteristic impedance, it does not change the nature of the line to become purely capacitive. The line will still have both resistance and reactance.
There is no reflected wave on the line
The correct answer is option D, which states that there is no reflected wave on the line. When a transmission line is terminated with its characteristic impedance, the impedance seen at the load matches the characteristic impedance of the line. This ensures that there is no mismatch and hence no reflection of power back towards the source.
When there is no reflection, it means that all the power sent from the source is absorbed by the load. This is desirable in power transmission systems as it maximizes power transfer efficiency and minimizes losses.
In conclusion, when a long overhead power transmission line is terminated with its characteristic impedance, there is no reflected wave on the line. This is advantageous for power transfer efficiency and prevents reactive power resonance from occurring.
When a long overhead power transmission line is terminated with its characteristic impedance, it means that the load impedance matches the characteristic impedance of the line. This condition is known as "matched impedance" and is commonly used to minimize reflections and maximize power transfer in transmission systems.
A resonance of reactive powers occurs in the line
When a transmission line is terminated with its characteristic impedance, there is no reflection of power back towards the source. As a result, there is no possibility of reactive power resonance occurring in the line. Reactive power resonance typically occurs when there are reflections of reactive power due to mismatched impedance.
The line becomes purely inductive
When a transmission line is terminated with its characteristic impedance, it does not change the nature of the line itself. The line will still have both resistance and reactance. Therefore, it does not become purely inductive.
The line becomes purely capacitive
Similarly, when a transmission line is terminated with its characteristic impedance, it does not change the nature of the line to become purely capacitive. The line will still have both resistance and reactance.
There is no reflected wave on the line
The correct answer is option D, which states that there is no reflected wave on the line. When a transmission line is terminated with its characteristic impedance, the impedance seen at the load matches the characteristic impedance of the line. This ensures that there is no mismatch and hence no reflection of power back towards the source.
When there is no reflection, it means that all the power sent from the source is absorbed by the load. This is desirable in power transmission systems as it maximizes power transfer efficiency and minimizes losses.
In conclusion, when a long overhead power transmission line is terminated with its characteristic impedance, there is no reflected wave on the line. This is advantageous for power transfer efficiency and prevents reactive power resonance from occurring.
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A long overhead losses power transmission line is terminated with its characteristic impedance while the line is in operationa)a resonance of reactive powers occurs in the lineb)the line becomes purely inductivec)the line becomes purely capacitived)there is no reflected wave on the lineCorrect answer is option 'D'. Can you explain this answer?
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