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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.
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I = W/E. Amps = Watts/Volts = 6500/240 = 27 amps. A #10 copper conductor with an insulation factor of 90 degrees C is rated at 30 amps. If the load is continuous the conductor… can only be loaded to 80% of its capacity. 30 x 80% = 24 amps which is too low for your load. Move to the next size wire which is a #8 which is rated at 40 amps x 80% = 32 amps. As long as no long distance runs are involved this wire size will work well.
You cannot. There is only single phase and three phase. Both come from the power company in wire distribution configurations. I believe in the Eastern united states there are …still some two phase systems. If memory serves these systems have voltages that are 90 degrees apart. Sometimes three wires are used to provide two phase service - the two phases and an oversized neutral wire that is used as the return for both phases. Since there is a phase shift involved to get two phases from one, you must have a phase shifting device to accomplish this. It is generally easier to get two/three phase service from your local utility company as opposed to try to generate it yourself.
used only the two line of a 3-phase system. ex. used line 1 and line 2 only, or line 2 and line 3 or line 3 and line 1 to have a 240v single phase. The above answer has the q…uestion backwards. No, you can not obtain three phase supply from a single phase supply with out spending a bit of money. If you are asking this to make a motor connection then that can be done. Depending on the amount of money you want to spend to make this happen there is a device on the market called a VFD ( Variable Frequency Drive). On the three phase input terminals you apply your single phase voltage. On the output terminals you connect your three phase motor. When run in this configuration there is an internal switch that has to be changed to let the VFD know that it should be looking for only two lines on the input to be hot. Other wise the VFD thinks that there is a line loss on the three phase input terminals and the unit will not start.
No...but you can buy an "autotransformer" that will boost the 220 to 277. Transformers of this kind can be the auto type or isolation type and are available at a …much higher cost that it would be to just buy 220 volt ballasts and sell the 277 ones at your next yard sale. The fluorescent lamps probably won't start with such a severe undervoltage (80% rated). If they do start, they won't work well and the lamps will have reduced life.
Answer You don't need a schematic. (Is this an existing or theoretical application?) After shutting off the double breakers which should be controllin…g such a circuit, install a new 220 volt, proper amperage rated dual or single receptacle using the same wires that are already there. It makes no difference which wire goes to which terminal on the receptacle. Check the amperage rating on the machine or appliance you are intending to use. Be certain the object is very well grounded. Make sure the existing wiring is adequate for the job. Otherwise you will have to pull in new wiring and possibly install higher rated double breakers. Check with your supplier to make sure the wiring you use is large enough to carry the intended load for the intended distance.
How can you convert US 120V or 240V circuit into a single-phase 240V circuit to use on a European appliance?
The voltage isn't a problem, you can run 220 from your house and use that to run a European appliance, the problem is whether the appliance is dependant on line HZ. Euro…pean is 50HZ and US is 60HZ. If the appliance specifies 220/50HZ, it will probably give you trouble here. If it says 220V/50 or 60HZ
How do you get a split phase 120v 240v power supply from a single phase 240v supply for an American RV with a 50 amp service?
This is a common misconception. A standard 240 utility feed, common in the US, and a 120/240 feed are one in the same, the exact same thing. It is called (historically) an Edi…son connection. If you have a 240 volt single-phase supply, with two hot conductors, a neutral, and a ground wire, then you already have 120/240 service. If you do not understand the terms above, then hire a qualified electrician to make the connection for you. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS. If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator to insure the circuit is, in fact, de-energized.
Note "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 separ…ation 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. Another answer 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".
Answer for USA, Canada and countries running a 60 Hz power supply service.You use a single phase 480 to 240 volt step down transformer. Connect the primary across the 480 volt…s and your load across the 240 volt side. Make sure that the transformer has a high enough capacity to carry the load with out getting into an overload condition. The proper size fusing of this transformer can be done on the primary side of the transformer which will protect the secondary side load. As you asked this question here the best advice anyone should give you is to call a licensed electrician to install a new 240 volt circuit with the right breakers, wiring and wall outlet for the appliance you want to use. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you do any work yourself, on electrical circuits, equipment or appliances, always use a test meter to ensure the circuit is, in fact, de-energized. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Answer for USA, Canada and countries running a 60 Hertz supply service. The US runs 240V single phase in almost all residential applications. It just so happens that the 2…40V is center tapped to make 120V/240V split phase, but that is still a single phase application. For more information about the supply services in other countries, please see the answer to the Related Question shown below.
240v x 13.5A = 3.24kVA, single phase transformer.
You can buy a 1 to 1 (or 1:1) multi-tap isolation transformer sized to handle 260v and whatever volt-amps you intend to run. It will come pre-wired to give you the same output… voltage as you supply, 260v in your case. But the multi-taps allow you to adjust the output voltage up or down depending on your needs. Choose the taps that give you a voltage as close to 240v as possible. This is not a do-it-yourself project. The primary and/or secondary must be protected by over-current devices and it must be properly grounded. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you do any work yourself, on electrical circuits, equipment or appliances, always use a test meter to ensure the circuit is, in fact, de-energized. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS.
The US system is not a two-phase system; it's a split-phase system. But, to answer your question, probably not without damaging the Japanese device.
How can you get 240V single phase power from a 240V 3 phase service Can you just connect to two poles of the 240V 3 phase service?
I'm sure this isn't what you want to hear, but you probably need to ask an electrician familiar with your service and what you want to connect. As a general answer, you can co…nnect a 240v line to line resistive load like an electric water heater to any 240v source. If you also need the 240v to have 120v line to neutral, like a 240v electric stove that contains a 120v clock and oven light, then its possible if the 3 phase power is connected in a "high delta" configuration, and you connect to the correct leads. If you have a high delta service and want to ignore the 3-phase power service and wire most or all of the loads in the building as a single phase load, the utility may have to be consulted.
Any two legs of the 480V will give you 240 V Single phase. I apologize for the wrong information here. A friendly member reminded me of the correct answer. I stand correct…ed. Any two legs would be at 480 single phase. One leg to neutral will give you 277volts not 240 (408/1.73). You would need to install a step down transformer on the 277v line to achieve 240v.
How do you Convert 240V single phase to 240V and 120V single phases split ac system for testing purpose basically Indian system to US system?
It can't be done because the 240 v supply has a live and neutral. A split-phase 120/240 has a centre-tapped neutral so both outer wires are live at 120 v. It can onl…y be done with a 240/240 v transformer with a centre-tapped secondary.