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What are the advantages of DC transmission system over AC transmission system?
- a)DC System is economical for long time
- b)There is no skin effect in DC system
- c)Corona limits are highest of DC circuit as compared to AC circuit
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
What are the advantages of DC transmission system over AC transmission...
The advantages of DC transmission system over AC transmission system are:
1) DC system is economical for long line
2) DC needs only two wires of transmission, while a 3 phase AC may need up to 4 wires
3) The corona loss is absent in DC, while for AC it increases with its frequency
4) The skin effect is also observed in AC, leading to problems in transmission conductor designs
5) No inductive and capacitive losses
6) No proximity effect
Most Upvoted Answer
What are the advantages of DC transmission system over AC transmission...
Advantages of DC transmission system over AC transmission system:
1. Economical for long distance:
- DC transmission system is more economical for long-distance transmission as it has lower line losses compared to AC transmission. This is because DC lines have lower resistance and reactance, resulting in lesser power losses during transmission.
2. No skin effect in DC system:
- Unlike AC transmission, DC transmission does not suffer from skin effect. Skin effect causes unequal distribution of current in the conductor, leading to increased power losses. DC transmission eliminates this issue, making it more efficient.
3. Higher corona limits in DC circuit:
- DC circuits have higher corona limits compared to AC circuits. Corona discharge can lead to power loss and interference in transmission lines. DC transmission systems have higher corona thresholds, reducing the chances of corona discharge and improving overall system efficiency.
In conclusion, the advantages of DC transmission over AC transmission make it a more cost-effective and efficient option for long-distance power transmission. These benefits contribute to the increasing popularity of DC transmission systems in the field of electrical engineering.
1. Economical for long distance:
- DC transmission system is more economical for long-distance transmission as it has lower line losses compared to AC transmission. This is because DC lines have lower resistance and reactance, resulting in lesser power losses during transmission.
2. No skin effect in DC system:
- Unlike AC transmission, DC transmission does not suffer from skin effect. Skin effect causes unequal distribution of current in the conductor, leading to increased power losses. DC transmission eliminates this issue, making it more efficient.
3. Higher corona limits in DC circuit:
- DC circuits have higher corona limits compared to AC circuits. Corona discharge can lead to power loss and interference in transmission lines. DC transmission systems have higher corona thresholds, reducing the chances of corona discharge and improving overall system efficiency.
In conclusion, the advantages of DC transmission over AC transmission make it a more cost-effective and efficient option for long-distance power transmission. These benefits contribute to the increasing popularity of DC transmission systems in the field of electrical engineering.
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What are the advantages of DC transmission system over AC transmission system?a)DC System is economical for long timeb)There is no skin effect in DC systemc)Corona limits are highest of DC circuit as compared to AC circuitd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about What are the advantages of DC transmission system over AC transmission system?a)DC System is economical for long timeb)There is no skin effect in DC systemc)Corona limits are highest of DC circuit as compared to AC circuitd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the advantages of DC transmission system over AC transmission system?a)DC System is economical for long timeb)There is no skin effect in DC systemc)Corona limits are highest of DC circuit as compared to AC circuitd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
What are the advantages of DC transmission system over AC transmission system?a)DC System is economical for long timeb)There is no skin effect in DC systemc)Corona limits are highest of DC circuit as compared to AC circuitd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about What are the advantages of DC transmission system over AC transmission system?a)DC System is economical for long timeb)There is no skin effect in DC systemc)Corona limits are highest of DC circuit as compared to AC circuitd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the advantages of DC transmission system over AC transmission system?a)DC System is economical for long timeb)There is no skin effect in DC systemc)Corona limits are highest of DC circuit as compared to AC circuitd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
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