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Yes, it is possible and was in common use during the early 20th century. In a two phase system the phases are 90 degrees apart. It is important to note the difference between the 3 wire single phase common in North American homes and true two phase power. As far as I know, there are few, if any two phase systems still in use.
See
http://en.wikipedia.org/wiki/Two-phase_electric_power
for more information.
Wiki User
∙ 14y ago
Wiki User
∙ 11y ago3 phase electricity is used in power distribution and high power industrial installations. Home installations use a single phase from the three with typically several houses in a street on one phase, the next few on another and the next few on the third. If you don't know much about 3 phase installations, don't mess with it. It usually comes at higher voltages than domestic installations and is correspondingly more dangerous.
Additional AnswerA two-phase system is an archaic system that predates the three-phase system, in which two phase voltages are generated 90 electrical degrees apart. Like a three-phase system, the two-phase system could generate a rotating magnetic field in induction motors allowing them to self start.
A comment on the original answer -some countries, such as Cyprus, provide residences with three-phase supplies.
Wiki User
∙ 11y ago.
'Two-phase' systems are long-obsolete in both Europe and North America, and haven't been used for a great many years, so it's quite unlikely that you'll have access to a two-phase system these days.
(These are systems in which the generator has two armature windings physically-displaced by 90 degrees, so that the supply voltages are also displaced from each other by 90 degrees.)
On the other hand, in some parts of Europe, three-phase residential services are quite common.
Wiki User
∙ 11y agoYes, its 2 lots of 240 v, with 180 deg phase difference. common in the country, transmitted via SWER power lines
RED to White =480v Red to neutral =240v white to neutral=240v
Wiki User
∙ 11y agoWiki User
∙ 14y agoNo it is classed as single phase.
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What are the advantages of three phase to two phase electric power distribution systems?
Polyphase systems are used because they allow the efficient transmission of electric power, in terms of power transmitted per kilogram of wire. Polyphase systems with more than three phases are very uncommon.
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 connect 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.
Can you get a 3 phase supply from single phase and how?
No, you cannot get a three phase supply directly from a single phase supply. Nowadays electronic inverter units can be bought that will do the job. For very low power loads the cost of such invertors is quite reasonable but for high power loads they are very expensive. For high-power industrial uses the most economical solution is to have a 3-phase service installed by the local electric power utility company.
Why would electric cost more on a three phase system as compared to a two phase system?
Three phase electricity, per watt delivered, is cheaper than single phase. This is because you can deliver the power to an electrical appliance over three "power lines" instead of one. For example, if you tried to operate a 5 hp ac electric motor on single phase it would require 3730 watts for continuous operation and quite a bit more for start up. A 12 gauge standard wire is only rated for 2700 watts. The more current that runs thru a wire the hotter it gets. The hotter it gets the more the resistance (ohms) goes up. Resistance in a wire is pure waste in terms of electrical cost since you are paying to convert electricity to heat. The same motor run on 12 gauge 3-phase wiring would only deliver 1243 watts per electric line to run the 5 hp motor. Also for motor use, three phase is much smoother and "torquier" than single phase since the power pulses to the field magnets is matched far better than in the single phase. For a visual on this see the website description below: = Wikipedia: Three-phase electric power =
How you measure power factor in three phase load by two wattmeter method?
First of all, you can only measure power factor of a three-phase load, provided that it is balanced load. The power factor can then be found by determining the cosine of the phase angle, using the following equation:tan (phase angle) = 1.732 ((P2-P1)/(P2+P1))...where P1 and P2 are the readings of the two wattmeters.
Why only two current in a 460 v electric system?
Your question is a little vague. Two currents would imply only two current carrying conductors, whereas the standard 460 volt power system is derived a 3 phase generator. It is possible, however, to power some types of equipment from only two phases or even a single phase along with the neutral conductor.
Is it possible to measure power factor of the balanced three-phase load by two-wattmeter method?
yes.
What are the advantages of three phase to two phase electric power distribution systems?
Polyphase systems are used because they allow the efficient transmission of electric power, in terms of power transmitted per kilogram of wire. Polyphase systems with more than three phases are very uncommon.
What are the applications of three phase to single phase electric power distribution systems?
All high-voltage distribution systems are three-phase. Single-phase 'spurs' off the main line, supplying, for example, farm houses, are simply two lines of a three-phase system.
How do you know if two sockets are in the same electric phase?
There will be no tension between that two points.
Why do you use two phase watt meter?
You may be thinking of the 'two-wattmeter method' for measuring three-phase power?As a rule, it's always possible to use one less wattmeter than the number of conductors supplying a three-phase load to measure the power of that load. So, for a three-phase, three-wire, system, two wattmeters may be used to measure the total active power of the load -regardless of whether the load is balanced or unbalanced. The algebraic sum of the two wattmeter readings will give the total power.
Is it possible to have an inversion of the two phases during the extraction step of DNA with the organic phase located on top of the aqueous phase?
is it possible to have an inversion of the two phases during extraction step of DNA, with the organic phase located on the top the aqueous phase
What are two ms power generating plants on the coast?
Mississippi Power Coast Electric
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 connect 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.
How do you wire a two-phase outlet for a stove?
Two-phase power is not generally available anywhere and three-phase is largely used for commercial and industrial applications.Residential power in the United States is single-phase, limited mostly to 240V at the service entrance panel as two legs of 120V each plus a common neutral.If that is what you're making reference to, please see the answers to the Related Questions shown below.
Can you get a 3 phase supply from single phase and how?
No, you cannot get a three phase supply directly from a single phase supply. Nowadays electronic inverter units can be bought that will do the job. For very low power loads the cost of such invertors is quite reasonable but for high power loads they are very expensive. For high-power industrial uses the most economical solution is to have a 3-phase service installed by the local electric power utility company.
What are the two power sources that power a laptop?
* Electric Power * battery
