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The only advantage I can think of off the top of my head would be a reduction of noise and a reduction of danger. DC will not interfere with wireless devices or create that annoying hum in sound devices and is far less lethal than AC current.
Disadvantages: You will take a major loss in power when converting AC to DC, and a further hit to convert it back to AC. DC current also will not travel as far as AC current over long distances.
Another answer
- DC does not experience 'skin effect' that is inherent in AC (in AC, the current runs predominantly on the outside - or 'skin' - of the wire and not in the interior), meaning that for the same sized wire and same voltage, DC loses less energy per distance than AC does.
- DC does not experience the electromagnetic inductance losses (or cause the electromagnetic interference) that AC power does since the voltage does not change over time. These losses can be minimized in AC by minimizing the frequency, but never completely eliminated.
- Given the same high tension power line setup, and even disregarding skin effect, DC can be run at higher voltage due to having steady voltage instead of a peak voltage that is ~1.4 times higher than the RMS voltage, as is the case with AC. For example, 500,000VAC (RMS) actually has a peak value of over 700,000volts.
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Wiki User
∙ 13y ago
Wiki User
∙ 11y agoThe principal advantage is AC power is more readily available everywhere, where as DC power needs more additional equipment to utilize it.
The principal advantage is that AC power can be transmitted over long distances. Transformers boost the generated voltage up to hundreds of thousands of volts. At the load end of the transmission line the voltage is then dropped by the use of transformers to a workable voltage.
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What is AC and DC electricity?
In DC power the voltage is constant, meaning that over time it is always the same number. In AC power, the voltage varies sinusoidally, meaning that over time the voltage travels smoothly from a positive "peak" to a exactly inverse negative "peak" and back again infinitely. AC power comes out of your wall sockets, but most things us DC power. Thus, many power cables have that big ugly box on them. That box converts the AC power from your wall socket in to DC power for your electronics.
Is Singapore's power grid AC or DC?
AC
How does an ac power source differ from a dc power source?
AC power sources are the adapter power sources. DC power sources are the direct power sources. DC stands for direct current, meaning it is a direct source of energy., and AC stands for alternating current, which means it is a secondary source of power.
Is ac or dc power cheaper to produce?
To produce it and distribute it, ac is much easier.
What component converts AC into clean DC power?
By using rectification we can convert the AC into DC....
What is the main advantage of DC over AC for aircraft electrical power systems?
It doesn't have to be rectified. That's the ONLY advantage; the electrical systems in all but the smallest planes are 400Hz AC systems.
What is difference between advantage and disadvantage AC and DC power transmission line?
The main advantage of ac- it required less maintainance The main disadvantage of ac-it can not be stored the main advantage of dc -it required less amount of conductors to transmit and easily stored The main disadvantage of dc-it is more dangerous than ac at high voltage
Why did electrical generation switch over from DC power to AC power?
It was near the beginning, around 1880, when it was found that AC power gives more flexibility in the supply and allows power to be transformed up and down in voltage for transmission over large distances.
Write down the advantage of 2-wattmeter method instead of 3-wattmeter method for measuring ac power?
It's cheaper.
What are the benefits of ac on dc?
The main advantage of alternating current (AC) over direct current (DC) is safety.DC locks you onto the current AC throws you away as it alternates.AC was invented by Nikola Tesla.Another advantageis that it may be transformed to a very high voltage for transmission over great distances. By doing so the losses due to line resistance are reduced since the current, for a given power, is reduced in inverse proportion.
What is AC and DC electricity?
In DC power the voltage is constant, meaning that over time it is always the same number. In AC power, the voltage varies sinusoidally, meaning that over time the voltage travels smoothly from a positive "peak" to a exactly inverse negative "peak" and back again infinitely. AC power comes out of your wall sockets, but most things us DC power. Thus, many power cables have that big ugly box on them. That box converts the AC power from your wall socket in to DC power for your electronics.
Why AC current is transmitted from power station instead of DC current?
This was due to the results of the War of the Currents between Edison, who supported DC and Tesla for AC power distribution. Although most electronics you find today run off DC power, the transmission of DC power over long distances is not very efficient and requires several substations between the power transmission source and where it is received. AC power after stepped up can be transmission over long distances with little energy loss. The energy loss occurs from heat generated from resistance within the transmission wire. At the introduction of Edison's system, there was no practical AC motor available. It was primary due to the introduction of the 3 phase AC motor did AC finally win over DC.
What IS AC power and DC power?
AC Power is Alternating Current whereas DC Power is Direct Current.
What is the difference between rms value and average value of AC?
rms value of ac power = dc power in reference to heat production in pure resistive load So ac power of some rms value will produce the same heat in resistive load as dc power will of same value
Who are the principal owners of ac Milan?
It is owned by the Italian olitician Mr Beruscloni.
Function of AC motor?
To convert ac electric power into mechanical power.
What is the relation of ac and DC?
DC is direct current, a steady current supplied from a steady voltage. AC is alternating current changing like a sine-wave positive and negative, with the advantage that it can be changed by transformers. DC can be derived from AC by rectification and smoothing circuits, which are built into equipments which draw their power (AC) from public electricity suppliers.
