Why is it advantageous to transmit electric power?
- Video answer: Why high voltage dc power transmission
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Video answer: Why high voltage dc power transmission
Those who are looking for an answer to the question «Why is it advantageous to transmit electric power?» often ask the following questions:
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An electric car is safer to use, given their lower center of gravity, which makes them much more stable on the road in case of a collision. In case an accident occurs, one can expect airbags to open up and electricity supply to cut from the battery.
👉 Do you transmit electric power via transmission lines at 50hz or at some higher khz?
Transmission lines also use 50 Hz. Transforming to lower voltages would become very complicated when also the frequency would have to be changed.
Video answer: Long distance power transmission | physics4students
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Let the power to be transmitted be P with the voltage V. The resistance of the transmission line be R. Hence high voltage implies low current. Thus reason statement in incorrect. Hence, high voltage ensure minimum loss in the power during transmission which proves to be advantageous. Thus Assertion statement is correct.
In electrical power transmission over long distances around 7% of energy is wasted as heat produced in the cables due to the inherent resistance of the cables. To reduce this loss, the voltage is...
Assertion: It is advantageous to transmit electric power at high voltage. Reason: High voltage implies high current. If both assertion and reason are true and reason is the correct explanation of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. If assertion is true but reason is false
The use of AC makes the transmission of electrical power to great distances much more economical. Suppose we need to transmit power W (watts, or more likely megawatts, millions of watts) from the power station where it is produced (by steam turbines or water turbines) to distant users.
AC and DC modes of transmission and distribution of power has both advantages and disadvantages: DC requires only two conductors for transmission and it is possible to transmit the power through only one conductor by using earth as return path. Hence much copper is saved.
Why is it advantageous to transmit electric power long distances at high voltages? lower current results in less energy loss through heating of the wires What fundamental quality underlies the concepts of the voltages and currents?
These high voltage lines transmit electric power generated at power stations which are situated at remote locations. Power stations are built away from the cities where natural resources are available and are transmitted to the load centres. Electricity is transmitted at high voltages up to 1.2MV (1200 kilo Volts) in some countries.
Updated 1 year ago · Author has 40.8K answers and 81.4M answer views. High voltage is best for long distance transmission of equal amounts of power compared to low voltage. This is because the current is inversely proportional to the voltage.
The loss of energy during transmission is negligible for ac. The ac can be easily converted into dc. The variation of ac can easily be done using transformers either step up or step down. The value or magnitude of ac can be decreased easily without loss of excess of energy. This can be done by using choke coil. These are the 8 advantages of ac over dc.
A polyphase system produces power at a constant rate in the load. A three phase system can transmit more power as compared to a single phase system. The efficiency of three phase operated devices and appliances is higher than the single phase operated machines. Three phase machines are less costly and more efficient.
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Video answer: Why do we use ac or dc power?
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