If all households converted from AC to DC, how much more costly would voltage regulators be for your devices compared to wall transformers?

Question

I heard DC has some advantages over AC in that it's 3 times safer when shocked compared to AC (even though still dangerous) because of different reacts nes and impedences, among other things like needed to covert AC to DC for some devices. If all houses were to convert from 120v AC to 120v DC, how much more expensive would it be to purchase voltage regulators for all your house hold devices like phones and computers instead of wall transformers to step down the voltage?

Answer 1

our devices compared to wall transformers? Walmart has technology to administer mark of the beast to those who have cat bacteria in their stomachs; stay away from cats [Afanasiy Sydyachyj]. Next false flag is the Statue of Liberty. Earth is flat; stands on 3 pillars (the Most Holy Trinity); pillars stand on water at zero Kelvin. Zodiac is planetary prison of demons; don't believe in horoscopes or you'll exhibit the traits of the trapped demons. Most thoughts and dreams are from demons; demons never do good. Sleep fully clothed; pray the Jesus prayer. Pray to your guardian angel to have normal sleep. Vyacheslav Krasheninnikov was the last prophet before Enoch and Elijah return to preach against the antichrist. According to Ruski Orthodox Christian Vyacheslav Krasheninnikov: Humans were created about 7525 years ago.



Birds participate in time creation. It's a sin to kill birds. Dinosaurs live under our level. They will get out through sinkholes and lakes. To kill them, go for their nerves. Save the birds; but kill the dinosaurs. First dinosaur will come out of Volga River in Russia. Demons grow human skin (from a sample taken during abduction) and put it on so as to look like us. Demons will invite people to be healed inside their UFOs; those who go will be like zombies after. Gov't provides demons with diamonds and allows demons to abduct people. If you're being abducted, slowly pray the Jesus prayer.



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Answer 2

DC is prohibitively expensive to move around the country, that is why we have AC.

Answer 3

DC power is actually more dangerous than AC. Thomas Edison tried to convince people that AC was more dangerous as Tesla was pushing for AC power distribution which could be used in large power distribution networks. Edison was pushing for small generating stations for every few hundred people all over the cities and was spreading rumours on how dangerous AC power was as it was carried long distances at very high voltages which were then through transformers broken down to the voltages needed for each household or business.

Thankfully Tesla was right as we would never have the power networks with their efficiencies of large scale production. Edison's idea would have been very expensive and wasteful if he had been listened to.

The big problem with DC power is moving it any large distance as the voltages must be huge to allow for line losses and then converting it at the end down to a useable household voltage. Tesla got it right and we are benefitting from it today.

Answer 4

No. No. and No. DC works BETTER for transmission but you need transformers to boost the voltage and DC does not work with transformers. THE latest transmission line systems ARE DC. There was a ~history channel show on TV that actually had the nonsense that transmission of DC was less efficient. They obviously consulted an idiot.

https://en.wikipedia.org/wiki/High-voltage_direct_current

A transformer is an electrical gear box that converts voltage and current to the needed ratio with minimal loss. Modern electronic power supplies use a very small transformer because they chop the low frequency AC up into a high frequency, but a transformer is still part of the conversion. DC-DC converters (regulators) may get by with just an inductor, but there is not much difference and does not provide the isolation you get with a transformer, which is very important for safety.

Also DC is MORE dangerous because it does not cycle and their is no chance it will let you let go when you grab hold of it.

The difference between a DC-DC converter and a AC-DC power supply is the rectifier and maybe the storage capacitor, ie not much, and AC means you don't have to worry about polarity. Many DC devices have rectifier anyway, just to protect them from reverse polarity mistakes. Diodes are cheap.

Answer 5

LN "One of the main reasons AC won out over DC is due to transmission line losses being so high with DC power. You would need a power generation station every few miles with DC power whereas AC can be sent hundreds of miles with little loss using high voltage transmission lines and stepdown transformers. "

You have that reversed. Transmission of energy using AC has more voltage loss due to the fact that the conductor inductance is directly related to the frequency of the voltage. The higher the frequency the higher the inductance value. When you transmit energy using DC the inductance does not come into play. The only factor is the resistance of the conductor. There are a number of transmission lines that are converted at the source to DC and converted back the AC at the receiving end. Edison started with DC to energize street lights. it could not be transmitted to far because he had to use low voltage. later on it was converted to AC and using a transformer, they could reduce the voltage to a usable value.

Answer 6

Why would you convert to DC when household appliances are designed to run on AC ? You'd have to redesign the whole system.

If there were lots of small generating stations, with short lengths of cable between the station and the local users, DC would work as well as AC.

Power transmission over long distance is very inefficient because of the heating effect of an electric current, so you need higher voltage and lower current, which is much cheaper and easier using AC and transformers.

Answer 7

One of the main reasons AC won out over DC is due to transmission line losses being so high with DC power. You would need a power generation station every few miles with DC power whereas AC can be sent hundreds of miles with little loss using high voltage transmission lines and stepdown transformers.

Answer 8

DC is prohibitively expensive to move around the country, that is why we have AC.

Answer 9

A DUMB QUESTION WITH DUMB IDEA. ALL ELECTRONIC DEVICES ARE CONVERTED AC INTO DC BEFORE ABLE TO RUN THE DEVICES !

ALL OTHER ELECTRIC APPLIANCES ARE DESIGNED TO RUN WITH AC, FEED THEM WITH DC POWER RESULTS A INSTANTLY BURN DOWN.

ALL ELECTRIC POWER SOURCES ARE DAMAGEROUS NO MATTER IT IS DC OR AC PROVIDED THEIR VOLTAGE LEVEL REACHES MORE THAN 50V KILLING HUMAN VOLTAGE LEVEL.

Answer 10

Go to a store and price them!

Answer 11

No, No, No, wrong assumption. DC is not less dangerous that AC. That's the point. I don't have to answer your question about economical analysis, does I?

Answer 12

Nowadays? Most (all new, basically) power supplies use switch mode PSUs, which pretty much work with everything on the input, including DC. That's not the problem. The main problem in your typical household installation would be the switches and fuses - the DC rating of a breaker (switch or fuse) is usually much lower than the AC rating, mainly due to arcing issues, so you'd have to replace all the switches (in the walls and all appliances), all the fuses (in the panel and appliances) and probably all the PCBs in those appliances that use AC on a PCB.

Answer 13

The core issue is not which type of current is safer, but which one is cheaper (requiring fewer converters and regulating devices). A few years ago, we had very few devices that used DC power. Now we have computers, CD players, and flat screen TVs that all use DC, and require a bulky addition to their circuit boards to convert the AC power from the outlet into the DC that their solid-state innards require. Also, we are seeing an increase in solar panel installations, which produce electricity in DC - which must be converted to AC before we can do anything with it. So, there are now more voices that suggest house power should be DC instead of AC.

However, AC still has its uses. It remains the best way to run motors - particularly heavy motors like furnace blowers, refrigerators, dishwashers, washer & dryer drives, sump pumps, septic tank pumps, and air conditioner compressors. These things, combined, make up our biggest household uses of electricity, by far - way more than electronic equipment like computers.

It is likely that we will start to see DC outlets for electronics being built into houses and businesses and connected directly to their respective solar power panels, while power delivered to those buildings (and backing up the solar arrays through rectifiers) remains AC - but only after electronics manufacturers agree on a standard interface DC power cable.

Answer 14

There are people in this world who agree with your idea. Look around your home and see how many things plug into AC. Don't forget furnaces, water heaters, thermostats and other uses that are hard wired. Every one of those items needs a replacement to work with DC. That's just your house. Installed base makes changing fromAC to DC incredibly impractical.