How can a 240V single-phase split ac work in the US which has a 120V 2-phase system?

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"2-phase" to describe US residential service is depricated nomenclature. US residential service is single phase because the two hot supply phases have 0 degrees of separation between their phases: therefore they are in phase.

The two phases are pulled from 2 out of 3 corners on a 240v (line-to-line) 3-phase delta-primary transformer, usually out in the street. (Sometimes at your house if it's a big one). Basically all power is generated and transmitted as 3-phase. Usually around 415V 3-phase comes into the primary of the 3-phase transformer. (It could be delta- or wye-connected.) The secondary windings for all three phases will each have a center-tapped connection, and that's grounded at the panel. This is the neutral wire. All circuits in houses return via the "common" or "neutral" wire to this point, which happens to be grounded at the panel. Note: no neutral wires should be grounded anywhere else. The two "corners" are 240v relative to each other, and 120v each to the center tap. Each 240V circuit really is two hot wires plus a neutral, which is why it's often wrongly called two-phase when in fact it's just single-phase. For each 120V circuit in the house you're going to use one hot wire and one neutral wire. The neutral wire provides a return path for currents back to the generating station. In some installations, such as apartment blocks, the third leg of power would be at 208V with respect to the center tap.

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Just what does "220v single-phase split ac in the US which has a 110v 2-phase system" mean?

The vast majority of electricity in the US is delivered as single phase or three phase. The only areas in the US that use 2-phase [for industrial and commercial purposes] are Philadelphia/South Jersey [where it is being phased out-no joke intended] and somewhere out west...

It was one of the early poly-phase options pursued because of the natural magnetic differential between phases [makes motors spin without a capacitor]

Most residences receive 220-240 volt single phase electricity with a grounded center-tapped neutral, the purpose being to limit voltage to ground to less than 150 volts from either "hot".
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Why does the US run at 120V when some of the world runs at 240V?

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If someone bought an electrical appliance in the US would it work in the UK given US appliances use 120V and UK use 240V?

I was a US Government employee. Me and my family were sent toEngland where we resided for 7 years. We shipped all our householdgoods with us including all our US electrical appliances. Oncethere, we purchased transformers which come in various wattageratings. The transformer actually converts the 22 (MORE)

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Can an American 240V dual phase dryer be converted to work in Korea with 240V single phase power?

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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?

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If you work in an industrial setting how do you make a 120V single phase line into a 240V single phase line?

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Can you use 120V appliances on a 240V outlet?

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Will an HDTV made for 120V 60hz work in 240V 50hz if you use a voltage converter?

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Can you split a 240V wire to wire a 120V outlet?

Answer . Yes you can, BUT IT IS DANGEROUS!!! You can use one side of the breaker to wire an outlet but if the outlet or the appliance you plug into the outlet shorts out, the breaker may not trip. Only half of the breaker will try to trip and the other half will not know to do the same therefore (MORE)

Can a 240V thermostat be operated using 120V to the themostat and them wired to a 120V heating element?

Answer . a 240 volt thermostat (or any 240 volt switch) is generally a 2-pole switch which means it breaks both wires going to the load. You can use it for 120 volt loads by using one of the two poles for the "hotleg" wire and just splice through the neutral wire. this is a 2-pole switch (the (MORE)

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 application requires that both hot conductors be disconnected simultaneously.. The proper solution is to use a double pole 24 (MORE)

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How do you use 120V equipment on 240V?

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Will a DVD made for 120V 60Hz work in 240V 50Hz if you use a voltage converter?

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

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Can you operating 240v 60hz single phase electric kiln on 240v 50hz single phase power supply system?

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What is an AC single phase 2 wire system?

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How can you get a 240V 3-phase from 240V single-phase?

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How can a 240V single phase split ac work in the US which has a 120V 2 phase system?

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

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How can use 240v two phase for lighting?

Technically two-phase has not been used for about 100 years, but a240 v supply comes from a 240-v single-phase transformer. One ofthose with a centre-tap is often used to provide two 120 v suppliesas well as a 240 v supply, and that's a split-phase supply. Although 240 v bulbs are universal in some (MORE)