What are some advantages of DC current over AC current?
I would like to understand the advantages of direct current (DC) over alternating current (AC). Please keep the explanation simple, as I have limited knowledge about electrical currents. I found a webpage that discusses this topic, but I am having trouble understanding it. Could you please help me? Thank you!
4 Answers
DC is simpler to use it to power most electronics, which tend to require DC to operate. This is why it’s used some rack systems use it – actually following a practice that the phone company has used for a very long time with their central office equipment. DC power also makes it easier to integrate batteries and UPS systems.
On a larger scale, High-voltage DC is seeing increasing use for long lines because it has less reactance loss than AC and it avoids grid synchronization problems. The wire can also be sized to the DC current rather than for the peak AC current. Link below explains this further. (first link)
DC also avoids “skin effect” where current is concentrated on the surface of the wire, so the net IR drop is smaller. (second link)
1.The generation of A.C. is cheaper than that of D.C.
2.A.C. machines are simple , robust and do mot require much attention for their repairs and maintainance during their use.
3.Wide range of voltages are obtained by the use of transformer.
4.The magnitude of current can be reduced by using an inductance or a conductor without any appreciable loss of energy
5.A.C. can easily be converted into D.C. with the help of rectifiers.
6.When A.C. is supplied at higher voltages in long distance transmission , the line losses are small compared to a D.C. transmission.
https://www.electrikals.com/
Related Questions
"If this same quantity of energy were transferred to 2.5 kg of water at its boiling point, what fraction of the water wo...
Have you ever noticed how the rear wheel of a bike seems to follow the front wheel closely? Why does this happen, and is...
What does CSS stand for: Cybernet Slash Support or Cybernet Software Systems? I came across a company located in T. Naga...
Please identify each of the following as measurements: Length Area Volume Mass Density Time Temperature...
Today's CPUs operate at speeds measured in gigahertz rather than kilohertz. Is this statement true or false?
What view in a presentation program allows you to display your slides in full-screen mode?
I have a question regarding torque in a magnetism context. I understand that the equation τ = IABsin(θ) will be relevant...
A 4.5 kg box slides down a 4.4 m high frictionless hill, starting from rest. It then travels across a 2.4 m wide horizon...
How does friction play a role in sledding and skiing? Specifically, what are the effects of friction on speed, control,...
What is the speed of light in kilometers per hour?