QA

What are the advantages and disadvantages of DC transmission line over AC transmission line?

What are the disadvantages of DC transmission over AC transmission?1) There is no inductance, capacitance, phase displacement and surge problem in DC transmission. 2) Due to the absence of inductance, the voltage drop in DC transmission is less than the AC transmission for the same load and receiving end voltage. Because of this DC transmission has better voltage regulation.

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What are the advantage and disadvantage of AC over DC transmission? (i) The generation of AC is cheaper than that of DC. (ii) When AC is supplied at higher voltages, the transmission losses are small compared to DC transmission. (iii) AC can easily be converted into DC with the help of rectifiers.

Which of the following is the main advantages of AC transmission system over DC transmission system Mcq?

The AC system has the following advantages over DC System: The power can be generated at high voltages. The maintenance of the AC system is easy and cheaper. The AC voltage can be stepped up or stepped down by transformers with ease and efficiency.

What are the advantages of DC over AC?

DC power is significantly more energy efficient than AC power. DC motors and appliances have higher efficiency and power to size characteristics. DC-based lighting (LED) is as much as 75% more efficient than incandescent lighting.

What are the advantages of DC transmission system over AC transmission system?

Advantages of DC Transmission
DC transmission requires less conductor material than AC transmission as only two wire are required for the power transmission through DC system. DC transmission lines are free from the skin effect.

What is the advantage of AC transmission over DC transmission?

AC is less expensive and easy to generate than DC. The distance covered by AC is more than that of the DC. The power loss during transmission in AC is less when compared to DC.

What are the disadvantages of AC transmission over DC transmission?

AC transmission lines require more conductor material than the DC transmission lines as three wire are required for AC transmission. The effective resistance of the AC transmission line is higher than DC transmission line. It is because the skin effect takes place in AC transmission line.

Which is the main advantages of AC transmission system over DC transmission system?

A.C. motors are cheaper and simpler in construction than the d.c. motors. The switchgear (e.g. switches, circuit breakers, etc.) for a.c. the system is cheaper than the d.c. system. A.C. can be easily converted into d.c. by rectifiers.

What are the advantage of AC over DC?

Following are the advantages of alternating current over direct current: AC is less expensive and easy to generate than DC. The distance covered by AC is more than that of the DC. The power loss during transmission in AC is less when compared to DC.

What is the disadvantages of AC over DC?

The peak value of A.C. is high and it is dangerous to use so better insulation is required. It attracts a person who touches it, unlike D.C. which gives a repelling shock. An A.C. is transmitted from the surface of the conductor and hence need several strands of thin wires insulated from each other.

Related Questions

What are the advantages and disadvantages of DC power?

A DC System has a less potential stress over AC system for same Voltage level. Therefore, a DC line requires less insulation. In DC System, there is no interference with other communication lines and systems. In DC Line, Corona losses are very low as compared to the AC transmission lines.

What are the advantages and disadvantages of DC power supply?

DC generators are more complex than AC generators. In fact, DC cannot be generated at a very voltage due to the commutation problem. 2. Although DC transmission and distribution more simpler and low expensive than the AC but DC cannot be transmitted over a long distance because it cannot be step up or step down.

What are advantages of DC supply over AC supply?

DC power is significantly more energy efficient than AC power. DC motors and appliances have higher efficiency and power to size characteristics. DC-based lighting (LED) is as much as 75% more efficient than incandescent lighting.

What are the advantages of AC over DC Class 12?

Advantages of ac over dc:
AC can be transmitted using step up transformers but direct current or dc can not be transmitted by this method. The ac is easy to generate than dc. It is cheaper to generate ac than dc. The ac generators have higher efficiency than dc.

What are the disadvantages and advantages of AC transmission over DC transmission?

AC type can be transmitted employing a step-up form of transformers but direct current cannot be transmitted by this solution. The AC is simpler to produce than DC. It is also less expensive than DC to generate. The AC systems have higher efficiency than DC such as ac generators.

What is the main advantage of AC power transmission over DC power transmission over long distance?

The main advantage of A.C power transmission over D.C power transmission over long distances is AC transmit without much loss of energy. Explanation: In comparison to DC, AC can carry energy over a long distance with little energy loss.

What are disadvantages of AC current?

The disadvantage of Alternating Current
Working with AC is much more dangerous than high voltage DC. AC can not be used for electrofishing, electroplating, etc. Cannot charge batteries directly from AC. Fatal accidents can happen with the slightest disregard.

What are the advantages of using DC power?

Advantages of DC
A big advantage of direct current is that it is easier to change the speed of a DC electric motor than it is for an AC one. This is useful in many applications, such as electric and hybrid cars.

What is the advantage of the DC supply?

DC power is significantly more energy efficient than AC power. DC motors and appliances have higher efficiency and power to size characteristics. DC-based lighting (LED) is as much as 75% more efficient than incandescent lighting.

What are the advantages and disadvantages of AC over DC Class 12?

(i) The generation of AC is cheaper than that of DC. (ii) When AC is supplied at higher voltages, the transmission losses are small compared to DC transmission. (iii) AC can easily be converted into DC with the help of rectifiers.

Which of the following is the main advantage of AC transmission system over DC transmission system?

Right Answer is: Less losses in transmission over long distance.

Is AC or DC better for long distance transmission?

High-voltage direct current (HVDC) technology offers several advantages compared to alternating current transmission systems. For example, it allows more efficient bulk power transfer over long distances.

What are advantages and disadvantages of AC?

They are functionally different from fans, because fans don't actually cool air, but only make it feel cooler by moving it around. The advantage of air conditioners is that they increase comfort levels during hot weather, but they can also present various disadvantages.

What are the advantages and disadvantages of AC electricity?

(i) The generation of AC is cheaper than that of DC. (ii) When AC is supplied at higher voltages, the transmission losses are small compared to DC transmission. (iii) AC can easily be converted into DC with the help of rectifiers.

Is AC harmful for health?

Being in AC for too long can result in drying out of your nasal passages. Irritation in mucous membranes and drying out of mucous can also happen. Absence of protective mucous can make you more prone to viral infections. Being dehydrated because of AC can cause headaches and migraines.

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