What would you like to do?
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 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.
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".
"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.
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".
Was this answer useful?
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?
Answer Yes 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! Â Another thought Yes, 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. Â 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.
If you work in an industrial setting how do you make a 120V single phase line into a 240V single phase line?
Get an electrician If you work in an industrial setting and DON'T know how to do this, you should keep your hands off it. You are not a suitably quali…fied individual. * National Electrical Code definition, NFPA 70 2005 Article 100 I: Qualified Person. "One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training on the hazards involved." * Performing any such operation without suitable qualification subjects your employer to action by OSHA. Read that as: "financial penalty"
Can you use 120V appliances on a 240V outlet?
Not advised Some appliances may work, but I imagine most would either blow a fuse or just burn out. Definately not advised unless you use a transformer. With th…e right transformer everything should work fine.
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 you could over heat the circuits and cause a fire. NOT A GOOD IDEA. That is a stupid answer, you cannot wire one side of a breaker. IT WILL NOT TRIP !!!! SO IT COULD CAUSE SOMEONE TO BE ELECTROCUTED.
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…he only way to use your 110 volt outlet for a 220 is to combine 2 110 volt legs to make it 220 volt. Then you neeed to make sure your breaaker is capable of the increase.
Can 120v bulb work in a 240v socket?
Answer for USA, Canada and countries running a 60 Hz power supply service. Assuming this inquiry is a request for information rather than related to any practic…al application, here is the answer: It won't work for long. If it was a low-power bulb it would probably just go "pop" and be useless but if it was a high-power bulb it might even explode with a loud "bang", sending broken glass shards in all directions! So don't try to do it as an experiment because the result could be very dangerous. 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.
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.
Can you split a 240v circuit into two 120v circuits?
yes, a 240 v circuit normally has 2 120 volt legs which are opposite phases and a neutral wire, there will be 120 volts between either hot wire and the neutral and 240 volts b…etween the two hot wires.
What is the value of a stamp that says US Washington 5c?
To many variables to determine. Consult a catalog, available online or at your local library. In most cases the value is going to be pretty low, as Washington is a common subj…ect for definitive stamps. But there are some with some good values to them!
Can you take single phase of 120V with a hot wire and a neutral step up to 480v and then step down to 2 phases of 120V or do you have to input 2 phases of 120v to get 240V out?
Theoretically that can be done with transformers, but the power available would still be limited by the circuit breaker on the original 120 v supply.
What are the 5cs in communication?
conciseness completeness clarity convincing correctness
Answered
In Technology
Can single phase 200v from japan use in US with two phase 120v 240V?
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.
Answered
In Technology
How can a 240V single phase split ac work in the US which has a 120V 2 phase system?
The US does not use a two-phase system. In fact, two-phase systems are very rare, these days. A two-phase system is where the phase voltages are displaced by 90 degrees, where…as the system used in the US is a split-phase system in which one secondary phase winding of a distribution transformer is centre-tapped and grounded (earthed). This provides 240 V between opposite ends of the phase winding, and 120 V from either end to the centre tap.
Answered
In Science
What is 5c in milliliters?
5cc? cc means cubic centimetres which is equal to ml, so 5ml. if you mean cl, then that is equal to 50ml
Answered
In Technology
How do you get 120v from a three phase system?
Three phase in the USA have two common voltages; either 277/480 or 120/208. if the panel the power is to be taken from is rated at 120/208 then a single pole breaker in the …panel will supply 120 volts from any of the phases where as the circuit is complete through the neutral. although not common to have, some of the three phase system having 120/208V set up could have the High phase B. that means that Phase B alone has a 208V phase to neutral; in other words a single pole breaker installed on phase B will supply 208V and not 120. Should the electrical system be 277/480V; then a step down transformer is required to produce the desired voltage.
Answered
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…'s nameplate label to see what they recommend as a working voltage. There it will also tell you whether the appliance can be used on another voltage source. ==== Yes, you can. But it will fail ("burn out") almost immediately. If it's one that accepts either input voltage or if it has a little '120/240' switch on it, and you flip the little switch to the '240' position, then you're no longer talking about a "120v appliance".