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The power is supplied to the home from a center-tapped transformer with the center tap grounded. The voltage from the center tap to each leg is 110 to 120. However, the voltage between the two outer taps is 220 to 240. Entering the home, the wires to each (hot) tap are black and red, respectively, and the neutral is white. A forth, bare, ground conductor is included for safety. It is joined to the neutral wire at the breaker box.
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How can you supply 220v machine to 208v supply?
Most 220 volt equipment will work on 208 volt supply. If the machine has a resistive load then the watts output will be lower than if supplied from a 220 volt source. If it is a motor load you will find that the equipment may run a bit slower but most motors will take the lower voltage. If the machine is a plug in device, install the appropriate receptacle to match the pin configuration and plug it in. If it is a hard wire installation this should be done by a qualified person.
You ran power from your house to your shop about a year ago The problem you are having is one of the bus legs in your shop panel box is not hot so every other 20 amp breaker is not hot on that leg?
Sounds as though you only ran a 110 volt power supply to your new shop subpanel. You need to supply 220V with a neutral and ground from your main panel to your subpanel. The 220 supply needs to come from a two pole 220V circuit breaker in your main panel. (example 50 or 100 Amp) Then, most importantly, you must use the correct size wire to carry the current. That is the wire must be sized correctly to the 220V breaker. The neutral must also be the same size as the conductors. Once you determine how much power you need in your shop, size the supply 220v circuit breaker and wire accordingly. Check with your local building department if you are unsure or what size wire to use with what size breaker or refer to Table 310-16 in the National Electric Code. In Australia domestic power is 240v So you have run single phase power to a three phase switchboard. To get power to those breakers you must hook the active to the busbar connected to those circuit breakers.
How can you get 110 volts out of a 220 volt circuit?
Depending on what you're trying to charge, if it doesn't require too much power, you might want to look into a 220 to 110 volt `stepdown' transformer. What? I want to raise the voltage, not lower it! Ok, so use the transformer in reverse. All of a sudden, 110 volts in, will give you 220 volts out. Just make sure the transformer has enough current carrying capacity to handle the load. An electrical supply outlet should be able to help you get what you need.
The 220 volt supply to your house goes above and below the 10 percent level How do you stabilize it?
You don't. It is the responsibility of the utility company that you purchase the power from. Request that they come out and check the voltage fluctuations. If you are on the end of a power line they can adjust the taps on the transformer. If not at least you are notifying them that there might be a potential problem with the system.Another AnswerUnder the UK relevant legislation, the nominal voltage of 230 V (not 220 V -there is no such nominal voltage within Europe) is allowed to vary between +10% and -6%. In other words, supply voltages that vary between 253 V and 216.2 V is normal and acceptable, and all appliances are designed and manufactured to operate within this range.As 220 V is well within this range, so there is no requirement for your electricity supplier to adjust the supply voltage to your property.If, however, your supply voltage falls outside this range, then your supplier has a legal obligation to improve the situation.
When does the new transformers come out?
when does the new transformes come out when does the new transformes come out
How can you supply 220v machine to 208v supply?
Most 220 volt equipment will work on 208 volt supply. If the machine has a resistive load then the watts output will be lower than if supplied from a 220 volt source. If it is a motor load you will find that the equipment may run a bit slower but most motors will take the lower voltage. If the machine is a plug in device, install the appropriate receptacle to match the pin configuration and plug it in. If it is a hard wire installation this should be done by a qualified person.
Do you need a neutral wire for 220v generator?
Quick answer is that 220v does not use or need a neutral. The original concept of the neutral (going back to Edison and DC power) was cutting the power in half (not really accurate but one way to look at it). Think about two 110v batteries in series the neutral would come off the connection between the two batteries. so current flow would go from +110 to -110 (first battery) to +110 to -110 (second battery) resulting in 220 output. The connection between the batteries (the neutral) is +110 / -110 resulting in 0. If you want a 110 current instead of using the full flow you could instead use only 'one side' and the neutral and get the 110. When we made the move from DC to AC the basics of this format was kept. So for 110v you need hot and neutral (and a ground) for 220v you need two hots (no neutral) and a ground.HUGE CATCH - WARNING - WARNING!!!Just because you think your equipment is 220v doesn't mean everything it does it does requires 220v for example: some equipment uses 220v for the motor and 110v for the rest of its electrical needs (Dryers are a typical example). In the old days, the dryer would use the two hots (and ground for safety) for 220v and then use one hot and ground (no 'safety' ground) for 110v. However, people often got shocked because this unsafe method would often cause the entire metal chassis to take on a charge. So todays dryers (and any other machine that has both 220v and 110v components) have and are required to have 2 hots ground and neutral. However, the documentation isn't always specific about the '110v need' and a lot of 220v only equipment will still have 4 wire connections even though the neutral is not needed.If you are sure your equipment never utilizes 110v - then you don't need a neutral (a single motor, no thrills (control panel, laser guides, etc), 220v table saw would be fine with out a neutral (one with the thrills may be fine also - depends on the power requirement of the 'thrills'). I don't know about your generator is depends if it is strictly 220v.
Need to buy a 220V clothes dryer and plug into a 110V outlet A can an electrician rewire or B will a transformer work and C know it will be inefficient but will it be safe?
This isn't an answer- it's from the questioner :) Just to clarify: This is the small, apartment-sized, stacked washer-dryer unit. They used to commonly come in 110V. They are still out there but old and sell for same price used as the used newer 220V. So we'd like to buy a newer used 220V and convert if possible and safe. Don't know the watts on these, tho. But must not be as large as regular sized dryers?
Why is 110v more deaths than 220v?
It isn't the voltage that is deadly. It's the amperage and the path the electricity takes through the body, along with the time the body is exposed to the current. That said, there are two main problems with 110v over 220v: 1. There are more 110v connections in most homes than 220v, so it's the voltage you're most likely to have problems with just by popularity. 2. Electrical shock causes muscles to tense. 220v often causes the muscles to seize so strongly that the person involuntarily jerks away from the wire they touched. 110v isn't as strong, so the person isn't as likely to move far enough to get away. Also, their hand may clench around the wire, preventing them from escaping the current.
Using a buck boost transformer can you plug a 220 volt tanning bed into a 110 volt outlet?
The answer is YES provided the following: The buck boost Xformer is rated to provide the amperage required by the bed. The amperage rating should be on the electrical nameplate on the bed or inhte instruction manual. That you wire the secondary of the Xformer to the exact correct leads for the beds required voltage. (220V, 230V, etc.) Most bb Xformers do not come with a cord and "plug" to go into a 110V oulet, so you must also correctly wire a grounded plug and 3 conductor wire to the correct 110V primary leads of the Xformer. Best to have a qualified electrician do this, not a "wanna be" or handyman type. If miswired, the Xformer will "smoke" as soon as you plug it in and may damage the tanning bed! (And bb Xformers aren't cheap.) I'm sure tanning beds aren't either. Also understand, that when you take 110V and "boost" it to 220V, you are reducing the amperage by 50%. Therefore, if you're plugging into a 15 amp residentail circuit, you're only providing 7.5 amps which may not be enough to operate the bed. Ulimately, you're far better off to install a designated 20 amp, 220V circuit from the main panel to supply power to your tanning bed.
Can an American 240V dual phase dryer be converted to work in Korea with 240V single phase power?
you could possibly design a fix for it but it would be a lot of trouble. the American dryer has internal components that run off 110v and that 110v is available from the three wire 220v circuit in the typical usa residence. this is because of the third wire, the neutral. the Korean 220 would be 2 wire. you would have to go inside the dryer, add a 220/110 transformer and rewire the dryer so that the 110v loads come off that transformer. it would then no longer be ul listed and would have to be evaluated by the authority having jurisdiction in Korea and back here in the usa.
How many volts come into your house?
For the USA its 240V (120V on each line/phase).
Can you plug a 115V appliance into a 120V outlet?
For residential service 110V, 115V, 117V, 120V, and 125V are all functionally the same. Electric companies have been slowly increasing the line voltage over the last 100 years to cope with increased loads. That is where these different voltages come from. The tolerance is generally +/-10%. That's +/- 11.5 volts in this case. So, a 115VAC appliance will run between 103.5 and 126.5VAC. The short answer is yes. 110V appliances can work with up to 130V without being burnt, additionally, 220V appliances can work with up to 240V without being burnt.
Will a Steam mop 220v 60hz work on 220v 50hz it uses about 1300w thanks?
Frequency doesn't come into it for normal electrical devices, as long as the voltage matches it will be fine. 50/60hz differences only really affect display equipment.
Does a power supply always come with a case?
No you can buy a supply seperate but the case always has a supply.
In the event of a city power cut can you use a single-phase 240V generator to connect across the two 120V phases supplying the house and would you still get 120V to neutral on each side?
AnswerYes you can BUT because you asked this question you should have a pro show you how to do it. Just to give you a worst case example, transformers work in both directions so if you feed the "city" with 220v your neighbors will enjoy your power until your generator burns up. Maybe 2-3 seconds! Another thoughtYes, IF you have a neutral connection at your generator. If you do not connect the neutral you will not have 110v from hot to neutral. This is because your house must be perfectly balanced across the neutral to have the correct voltage divider to split 220V into 110V. This is near impossible in a residential situation. You need the neutral for 110V. Also, buy a generator transfer panel if you plan to power your house off a generator. It's the law.MoreNot because it's the law, but if you don't have a transfer panel and you connect it directly to your panel you'll also be putting current to the lines coming into your house. This is real scary for the electricians that come out to repair the power. The (city) power is off and they don't expect to see (feel!) any on your end. You could end up electrocuting someone.
You ran power from your house to your shop about a year ago The problem you are having is one of the bus legs in your shop panel box is not hot so every other 20 amp breaker is not hot on that leg?
Sounds as though you only ran a 110 volt power supply to your new shop subpanel. You need to supply 220V with a neutral and ground from your main panel to your subpanel. The 220 supply needs to come from a two pole 220V circuit breaker in your main panel. (example 50 or 100 Amp) Then, most importantly, you must use the correct size wire to carry the current. That is the wire must be sized correctly to the 220V breaker. The neutral must also be the same size as the conductors. Once you determine how much power you need in your shop, size the supply 220v circuit breaker and wire accordingly. Check with your local building department if you are unsure or what size wire to use with what size breaker or refer to Table 310-16 in the National Electric Code. In Australia domestic power is 240v So you have run single phase power to a three phase switchboard. To get power to those breakers you must hook the active to the busbar connected to those circuit breakers.
