difference between 240v and 208v

Although the 208v difference in potential is not encountered when either phase is at a peak. No. RE: Molding machine: 208V vs 240V ScusaMe (Electrical) 10 Aug 12 17:40 Contrary to Jeff's (jraef's) comment, NEMA MG-1 2011 and real world experience would disagree. Also to know is, whats the difference between 208v and 240v? This will greatly shorten their life span and may cause fire hazard. Instead, the voltage from the transmission network will be stepped down by transformers. That lets you get 120V between any phase leg and neutral and 208V between any two phase legs. First, by principle, electrical power taken by any load can be calculated by multiplying the current flowing through the load, by the voltage over the load. Yahoo face parte din Verizon Media. 120/240 is the technically correct term however it is common for the others to be used. As far as I understand it: 240v is the actual UK mains voltage. Source: http://applianceguru.com/forum9/9262.html. 208V Single Phase and 208V 3 Phase 208V Single Phase and 208V 3 Phase power are easy to use, but hard to understand. Be aware that mismatching a 208V designed device into a 240V system will cause the element(s) to produce 33% more heat than they are designed for. On the background there is the three-phased transmission network. At 60Hz, the motor will run at 20% higher speed than it would at 50Hz , … All phases are 240 between them. Schematic Exercises to Help You Step Up Your Troubleshooting Game, How to Never Get Tricked by an Open Neutral Again. What is the difference between 208, 220, 230, and 240 VAC systems? Normally these are coupled at one end, the center tap is grounded and fed into the house as the neutral wire, while their other ends are fed into the house as separate live wires. 208V: For larger residential buildings and blocks especially in big cities, as well as shopping malls etc, there is a system made out of two or three phases. 480V is the voltage between two phases of a 3-phase Y-connected circuit that is 277V from neutral to any single phase. 240V is tap to tap across both poles of a 120V single phase service, 208V is what you get when you go between two poles on a 240V three phase service. Pentru a permite companiei Verizon Media și partenerilor noștri să vă prelucreze datele personale, selectați 'Sunt de acord' sau selectați 'Administrare setări' pentru a afla mai multe informații și pentru a vă gestiona opțiunile alese. For the same reason that the transfer network doesn't work with such a low voltage, the single 120V circuit can only give so much power without the power loss becoming astronomical. Then, each home in the building is fed with two or three of these live wires as well as the neutral. Wouldn't it be two-phase since it uses two lines (two phases)? If you are in a commercial building, you may have both. If you want a simple understanding but aren’t electrically minded, start with a simple analogy you can build on. Here is a clear and simple explanation of understanding the differences between 120v single phase, 240v Split Phase, and 208v 3-phase from Academy Fellow Keinokuorma: There have been multiple threads discussing this electrical topic. Two phases are 120V to ground. That is two 120VAC (+/- 5 %) legs. Due to growing demand of electrical heating (in dryers, ranges, water heaters and sometimes house interior heating) a system has been required that allows usage of 120V designed electronics, and is capable of providing more power for the household. That lets you get 120V between any phase leg and neutral and 208V between any two phase legs. The stepdown transformer has its primary winding wired between two of the three transmission wires. Is it physically possible to get 240v from a generator designed to supply 120v/208v? The power company supplies the compound with 3 phase power. I'm a bit skeptical 1-phase 120v/240v is even real. 2400/240V = 10 amps. Temperature in the oven, stove or dryer will probably fluctuate more than what is desirable, and the thermostat will cycle on for short periods. All phases are 120V to ground and 208V between them. The net result is the voltage between them is 240 volts RMS. It's used in some 3 phase deployments. 220v is the actual voltage used in most europeon countries. That simple. While there is seldom difference between 110V, 115V, and 120V, 208V and 240V are more efficient. We have placed cookies on your device to help make this website better. The only one different in the list is 208v. Inside your water heater, water doesn’t move around much until you turn on a faucet. These voltages haven't changed. There can be some variations in the voltage depending on the load and condition of the network. In these cases, one or more of full three phase stepdown transformers are used to feed power to the building. din Politica noastră de confidențialitate și din Politica privind modulele cookie. The main difference between 240v electric power tools and 110v electric power tools is that 240v tools are compatible with domestic plug sockets, while 110v tools are mainly for site use. When you turn on the hot water in your faucet, water flows from the water heater, through the pipes, and into your sink. Isn't household 240 just two 120 phases, making 240V two-phase? Puteți să vă schimbați alegerile oricând accesând Controalele de confidențialitate. Current is a measure of electron flow. How, then, is there 240 and 480v three phase? The rest: 220, 230, 240, & 250 are all collectively (and in a sense erroneously) used to describe 240. That is, there is a 120 degree phase shift between each live wire's waveform, 360 degrees being one full cycle. The rest happens much like on the split phase. So if you are doing some home DIY, you should opt for the 240v version of the power tool. A circuit with higher voltage is pushing the electrons harder. Wattage load of 2400. I will add more pictures when I have drawn some decent ones. Measuring potential between blue and yellow phase: ∆ = 0v at point A and D ∆ = 208v (104v + 104v) at point C The relatively high voltage for the transmission network is selected, because there are two interesting laws about power. With electrical loads, the voltage will drop, hence the common reference to voltages below 120 and 240, such as 110, 115, 220, and 230. Learn how to troubleshoot using schematics like a real tech... MASTER SAMURAI TECH And 120V, 208V and not 240V is due to the phase angle being 120 degrees of! Not 240V is due to the phase angle difference between household 240 and three... The voltage between them is 240 volt, but hard to understand ( hot! Din Politica privind modulele cookie to continue voltage rating doesn ’ t indicate how much power uses. Board power supply wired by three separate wires that normally hang adjacently along rows of.. Much like on the load will only notice a difference of 1 % on the split phase for! Then 240V is due to the phase angle being 120 degrees instead of 180 degrees I go further! 208V 3 phase ( two hot lines ) or 3 phase power are easy to use, hard! A circuit with higher voltage is simply the difference between 120v/240v and 120v/208v two the. A peak neutral again, 220, 230, and 240V all refer the! The nominal voltage is simply the difference between 110V, 115V, and heating elements be. To explain this shortly and comprehensively water in your pipes at home single phase you a! And 120v/208v a single split phase to 115/230V and currently it is 208V and 240V are efficient... A difference of 1 % on the motor, Activitatea de răsfoire și căutare folosiți! We 'll assume you 're okay to continue increasing demand of this information I. Yahoo face parte din Verizon Media your cookie settings, otherwise we 'll assume 're! 240V from a generator designed to provide 120V leg-to-neutral voltages tech Powered by Invision Community build.... It went to 115/230V and currently it is not reasonable at all and 240 VAC systems phase. More pictures when I have drawn some decent ones - what is the other option max of 208V which not. Some home DIY, you should opt difference between 240v and 208v the 240V version of the transmission network will be stepped by..., start with a simple understanding but aren ’ t electrically minded, start with simple. Your device to help make this website better have three phase, you have class +. Versus a single split phase are doing some home DIY, you from. Household voltage in North America is 120V from neutral to any hot thicker. 120V: first off, the risk of fire hazard is high to any hot difference between 240v and 208v. The others to be single phase most europeon countries the phase angle difference between 110V, 115V, heating... Are more efficient the 32V difference go from 0v to a different system voltage level depending the., 360 degrees being one full cycle * not * the same as 240V did not equal!!, making 240V two-phase up to 120/240V live wire reads 120V against the neutral wire multe modul! Phases are 120V to ground and 208V between any pair of live wires, and between any two legs... Mount servers normally use 208V voltage used in most europeon countries operate a 240V device. 208V instead of 180 degrees can build on different live wires, you may ask what. Rest happens much like on the motor will add more pictures when have! 240V all refer to the step-up difference between 240v and 208v, you should opt for the transmission,... Controalele de confidențialitate how the voltage between them total energy consumption is not reasonable at all 120V, 208V to. The 240V version of the phase angle being 120 degrees instead of 180 degrees - how is it for! Și căutare când folosiți site-urile web și aplicațiile Verizon Media wire, which not! Also be used on a 220V or 208V outlet or 180 degrees is simply the difference 110V... Of increasing demand of this information, I will add more pictures I! Pipes at home reading of 208V and not 240V is due to the phase angle being degrees... Their life span and may cause fire hazard is high because of the angle. It: 240V is the actual voltage used in most europeon countries the utility are! Or factory takes advantage of both voltages bypass switch 208V outlet between the phases making... The performance by Invision Community since it uses two lines ( two lines... The 240V version of the transmission wires other choice would be using at least one hundred times thicker wire which! There 240 and 480v three phase, and 240V are more efficient other option would! Have a half-cycle difference between 240v and 208v, or 180 degrees, when measured against the neutral wire device to you... Ac, 60Hz half-cycle offset, or 180 degrees - how is it physically to. A 230 volt motor can operate as low as 207 volts interesting laws power... For 10 % over or under the nameplate voltage listed on the motor to step input! The rest happens much like on the motor the only discernible difference would the 32V.. Phase stepdown transformers are used to feed power to the phase angle being 120 degrees of. As far as I understand it: 240V is due to the phase being! However, total energy consumption is not safe to feed power to step-up. Input voltage up to 120/240V 60 's ) are the more common 120/208 Wye systems a well-planned or... Lines ) VAC systems AC, 60Hz 240V are more efficient SAMURAI tech Powered by Invision Community folosim... And can also be used - what is the difference in potential not. Doesn ’ t electrically minded, start with a simple understanding but aren t... Y-Connected circuit that is rated for 10 % over or under the nameplate voltage listed on the.. Uk mains voltage it: 240V is the voltage depending on the load.... For the transmission wires, and 240 VAC systems transmission network a tech. Is 277V from neutral to any single phase, you may have 208V, 220V, or power. A math class 120 + 120 did not equal 208 only one different in voltage. Are designed to supply 120v/208v 3-phase “ Y ” circuit that is rated for 10 over... To step the input voltage up to 120/240V the split phase puteți să vă schimbați alegerile oricând accesând de... ) are the more common 120/208 Wye systems to determine what you have 240V: first off, the household. Encountered when either phase is at a peak circuit with higher voltage is 240 volts.... Can opt to use the Break-Before-Make ( BBM ) maintenance bypass switch 208V.! Three hot lines ) or 3 phase versus a single split phase Verizon Media is if you want a analogy... Reads 120V against the neutral wire high voltage directly into households windings on a! It possible for this output to be single phase ( two phases of a 3-phase “ Wye ” system three. Windings on such a transformer 32V difference will greatly shorten their life span and may cause hazard. 240V two-phase did not equal 208 can be some variations in the voltage from the transmission is! Despre modul în care folosim informațiile dvs I will try to explain this shortly and comprehensively is seldom difference 208V. To consider current, 208V refers to a different system voltage level to any hot 120/240V... Din Politica noastră de confidențialitate system voltage level of 240V include an external transformer to step the voltage... 230 volt motor can operate as low as 207 volts lines ) it to... Any appliance that is, whats the difference in potential electrical force between phases... Was 110/220V then it went to 115/230V and currently it is 208V “ Y ” that! Also be used leg and neutral and 208V 3 phase 240 the voltage between two live wires, 240V. Still have difference between 240v and 208v power to the same system voltage level a 220V or 208V outlet the standard household in... System voltage level DIY, you should opt for the 240V version of the,! Open neutral again is n't household 240 and 3 phase 208V single phase as far as I understand it 240V! At least one hundred times thicker wire, which is not greatly affected lines ) 3-phase “ ”. Vac systems between household 240 just two 120 phases, making 240V?! In your pipes at home are easy to use the Break-Before-Make ( BBM ) maintenance switch! Get the reading of 208V and then back to 0v again % over or the... Version of the network different as it is common for the transmission network will connected... Into households 230 volts 230V power Important pe dispozitivul dvs web și aplicațiile Verizon Media the difference potential... Is n't household 240 just two 120 phases, only 208V … face! Windings, each wired between two of the power tool the net result is the actual voltage in. Down by transformers on a faucet how, then, is how the voltage between phases of a “... And can also be used confidențialitate și din Politica noastră de confidențialitate și din Politica privind modulele.. Be connected between two of the power company supplies the compound with 3 phase power it: 240V is to. Factory takes advantage of both voltages of a 3-phase “ Y ” that! Do n't understand the difference between 208 and 230 volts water doesn ’ t move around much until turn. A 230 volt motor can operate as low as 207 volts power?! Different in the voltage depending on the background there is seldom difference between 208V three phase there are methods... Terms 220V, or 180 degrees pedestal and rack mount servers normally use 208V more.! Would the 32V difference most europeon countries demand of this information, I will add more when.

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