What would you like to do?

# How do you produce 120V lines from 240V lines without using a transformer?

Would you like to merge this question into it?

#### already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

#### exists and is an alternate of .

220 volt AC current is achieved by having two 110 volt lines with opposite waves or phases. One line will be positive while the other is negative then they flip or alternate 60 times a second (60 hertz). When connecting a volt meter to each of these lines it will read 220volts. Connecting a volt meter from either line to ground will read 110.
I don't know if your question is backwards, but in a home you shouldn't have any lines that read 220 volts to ground. In a business or shop there can be 240 volt lines which combined can make 480 for industrial equipment.
If your 220 is an older style and only has two hots and a ground (red,black,bare/green) you can't make a 110. If your 220 has 2 hots (red,black), a neutral (white), and a ground (bare/green), you can get 110 from either of the hots (black,red) to neutral (white).
Thanks for the feedback!

# If you live in Israel can you use a transformer to step down the 240V power to 120V and then use an American appliance or do you also have a cycle problem and if so can it be cured?

Yes, i have done two deployments overseas and both times used converters to step down 220-110. Just make sure it is a good converter. I recommend anything by radio shack. 

# A step up transformer is used on 120v line to provide a potential difference of 2400v if the primary has 75 turns how many turns must the secondary have?

The turns ratio of an ideal transformer is the same as its voltage ratio. In the case of your query, the voltage ratio is: Us/Up = Ns/Np So, Ns = Np (Us/Up) = 75 x (2400/120)

# Why does the US run at 120V when some of the world runs at 240V?

Technology, current at the time of US electrification, locked the  US into 110, then 120 volt outlets. Europe's  electrification came later, and proceeded in response to adv

# Can you use a 120V to 240V step up transformer for an electric range?

Outlets and power     (110V outlets and 120V outlets are practically the same for this discussion. I will refer to them as 120V. Same with 220V/240V outlets.)   

# How do you produce a 240V line from two 120V lines?

  Answer   first off, the two 110v circuits would have to be from different bus bars in the breaker panel, one from the left bus and one from the right bus. if they

# Can a 120V UL rated dimmer switch be used on a 240V dedicated line that is providing power to a UK built light fixture that uses UK light bulbs?

Answer for USA, Canada and countries running a 60 Hz power supply service. . No. Do not use a 120 Volt rated device for 240 Volt service. All equipment on 240 volt cir

# Can you use a 120v switch for a 240v application?

Answer for USA, Canada and countries using similar 60Hz household electricity supplies   This is not possible because a 120v switch disconnects one conductor while a 240v

# Can you use 240v appliances on a 120v outlet?

  There are 110 volts going to recepticles along the walls ect. These are for lamps, vaccuum cleaners, most things besides stoves, dryers, heating and cooling(most). But t

# How do you run a 240V line for a dryer?

  Answer     At the service panel (breaker box) you'll need a double-pole breaker rated for the dryer (probably 30 amp) and run two "hot" wires (red & black) usin

# How do you wire an existing 240V circuit line as the feed to a new subpanel with 120V circuit breakers?

  Answer for USA, Canada and countries running a 60 Hz power supply service.     Warning that must be heeded   Firstly, you MUST have 4 wires run to your s

# How can you run a 277v motor on a 120v line?

Get a step up transformer that converts 120 V to 277 V. Size according to the load.

# How do you convert a 120V receptacle to a 240V receptacle for an air conditioner that uses 240V?

  Answer     A "110" volt outlet cannot be converted to a "230" volt outlet. A 230 volt outlet requires a new wire run to the outlet rated for the appliance you p

# Is it possible to use a 120-240V step up transformer with an electric range when a house is only wired for 120V and if so how?

  You DO NOT NEED A TRANSFORMER!!! You Have 220 Volts Commint Into Your Breaker Box. Install A 50 Amp 2 Pole Breaker And Run A Circuit With 6 Guage Romex Wire To The Stove

# Is it possible to run a 240V heater and two 120V outlets from one line of 3 wire 12 gauge romex?

It's possible. It's not right though. Run a separate wire for your 110v circuit.     To follow NEC (National Electrical Code) guidelines you need two separate branch ci

# Which appliances require a 240V line?

Answer for UK, Europe and countries running a 50 Hz supply service. There are quite a few appliances that use a 240V line. Air conditioners, fridges, washers and dryers all us

# Can you use a 120V table lamp on a 227v line?

The answer is possibly. There is no guarantee that the insulation designed for the lower voltage will be adequate at the higher voltage. The danger of electric shock should no

# Can you use a 120v appliance with a 240v supply?

It depends on what the appliance is. Some smaller appliances have a dual voltage switch which allows you to adjust the appliance to the supply voltage. Look on the manufacture