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Any two legs of a three phase system can be classed as a single phase supply.
Alternative AnswerAs the above answer points out, connecting a load between any two line conductors of a three-phase supply will give you a single-phase load. But you must, of course, take into account the voltage rating of the load you wish to connect.
In Europe, three-phase low-voltage distribution is normally by means of a four-wire system, comprising three line conductors and a neutral conductor, operating at 400 V (line-to-line) and 230 V (line-to-neutral).
Your single-phase load's voltage rating must, of course, match either the single-phase supply's line-to-line or line-to-neutral voltages. In Europe, most single-phase loads are rated at 230 V so, for a residential three-phase, four-wire system, it is usual to obtain a single-phase supply by connecting the load between any one of the line conductors and the neutral conductor.
But, if you have a non-standard, 400-V single-phase load, then connecting that load between any two line conductors will also give you a single-phase supply.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoYou cannot. The, now-archaic, 'two-phase system' comprises two phase voltages, displaced from each other by 90 electrical degrees. This is not achievable from a three-phase system, whose phase voltages are displaced by 120 degrees. Furthermore, why would you want to? What application would you have for a two-phase system, these days?
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What is a slip ring connection?
Here is the list of actual exam or homework questions the Asker wishes to have someone write the answers for him to copy without looking them up for himself: : 1) What is a slit ring and a slip ring in electrical ... (machines?) : 2) mention the application of the method of connection in brief : 3) what is the phase type (1phase, 3phase) and explain why not using 2phase : 4) what is cogging and hunting? explain briefly : 5) what is the difference between neutral and earth? explain briefly
How do you convert from 480 volt to 220 volt or 110 volt?
AC voltage conversions are usually done with transformers. Most commonly, a 3 phase 277/480v system is transformed to a 3 phase 120/208v system. You can, however transform to anything you like with the proper transformer. If you are trying to convert 480v single phase to 240v single phase, such as for home use, then ask for that type transformer. It would use only 2 phases of the 3 phase system. Using 2 phases is called single phase and there are reasons for this that are beyond the scope of this answer. 220v and 110v are field measurements of what is considered 240v and 120v when ordering equipment or applying code.
Why do you use codenser in fan?
fan is a capacitor start capacitor run single phase induction motor. since single phase induction motors are not self starters, caused by discontinuty in stator mmf. so to iniate rotation single phase supply is splitted 90 degree apart by a capacitor to convert it to a 2 phase motor, which produces a continued synchronously revolving mmf in stator to start the motor. cool !!
What are phase daigram?
Phase diagram are also known as thermal equilibrium diagram or a consistutional diagram 1. Different uses of phase diagram are 2. prediction of phase 3. amount of phase 4.composition of phase
Why 2 phase induction motors are not used in industries?
A two-phase* system is archaic, and has been completely superceded by three-phase systems, so there is no demand for two-phase induction motors. (*A two-phase generator has two phase windings, displaced from each other by 90 degrees.)
How do you convert 3 phase power to 2 phase power in scoot connection?
The Scott T Connection is what you are considering. There is an article in wikipedia.org, but they say there that this concept is of historic importance only.
How do you convert 3 phase power to 2 phase power?
You need to have a properly sized Phase Converter Installed. What do you need 2 phase for? Is it just one piece of equipment? If so it may be is easier and cheaper to convert the equipment.If you are looking for a Licensed electrician you can find one at www.contraxtor.comAnswerDo you really mean a 'two-phase' system? This is an archaic system in which the phase voltages are displaced by 90 electrical degrees. Many people mistake this term for the 'split-phase' system, used in North America, to provide a 240/120-V service. If you do mean a 'split-phase' system, then you will need a single-phase transformer whose primary is connected across any pair of the three-phase line conductors, and a centre-tapped 240-V secondary. The centre tapped connection is earthed (grounded) to provide the neutral connection, and the potential of each end of that winding is 120 V with respect to the neutral. Of course, the turns ratio of your transformer must be appropriate for your three-phase supply. As the original answer indicates, this work will need to be performed by a licensed electrician.
Why 3 phase to 2 phase conversion is done in Scott connection of transformers?
Because that is the simplest, cheapest and most efficient way to do it.
Function of switched capacitor for three phase power generation from single phase?
usually they say its possible 2 convert a 2phase supply to 3 phase.if its so then how?
Why is star connection used in a three phase transformer?
The power of all three phases can be transmitted on three conductors.A star connection, as opposed to a delta, provides a grounding reference. Also, for ground faults on the secondary (assuming no delta third winding, or source third winding) will be a direct ratio similar to phase faults, instead of 57%. Another reason is to avoid the inherent phase shift involved in a delta/star configured transformer.Another AnswerA 'star-connected' secondary is the standard European connection for a three-phase distribution transformer, as it provides a line voltage of 400 V together with a phase voltage (i.e. line to neutral) of 230 V.
How many wire or core in three phase electrical connection and single-phase electrical connection?
A single-phase cable will have a line and a neutral conductor and, possibly, but not necessarily, an earth (ground) conductor. A high-voltage three-phase cable will have three line conductors. A low-voltage three-phase cable is likely to have three line conductors and a neutral conductor.
Can a 3 three phase motor be run with a scot t transformer on a 2 phase supply?
A Scott transformer converts 3-phase to 2-phase and vice versa, so if you get a Scott transformer it can convert a 2-phase supply into 3-phase for the motor. Caution: the 2-phase supply has to be a genuine 2-phase as defined, with 90 degrees phase between the two phases, and these are extremely uncommon. A Scott transformer CANNOT be used with the split-phase supply found in many US homes which have a 240 v single-phase transformer with the centre earthed and connected to a neutral wire to produce two 120 v circuits.
Does a 2 horsepower rotary converter plug into 120 single phase and convert it to plug in a 3 phase outlet?
All my experience with rotary phase converters have been in converting 240 volt single phase into 240 volt three phase. They all were hard wired into their respective systems, so my answer is no.
How do you rewire 220 3phase to 220 1phase?
Just use 2 of the wires instead of 3.
Can you have 2 3-phase sockets off the same supply?
yes you can. for example in a 380V 3 wire system the 4th wire or neutral gives 220 volts against each of the 3 phases so you can have 3phase 380 volt plugs as well as 220 V single phase plugs. ah and by the way you can have as many 3 phase plugs as you like or as the power supply can support ampere wise.
Star-star connection of transformer?
Star Star TransformerStar Star Transformer is formed in a 3 phase transformer by connecting one terminal of each phase of individual side, together. The common terminal is indicated by suffix 1 in the figure below. If terminal with suffix 1 in both primary and secondary are used as common terminal, voltages of primary and secondary are in same phase. That is why this connection is called zero degree connection or 0o - connection.If the terminals with suffix 1 is connected together in HV side as common point and the terminals with suffix 2 in LV side are connected together as common point, the voltages in primary and secondary will be in opposite phase. Hence, Star Star Transformer connection is called 180o - Connection, of three phase transformer.Vikram Meena
How do you convert a 4 wire water well pump to a 2 wire?
It sounds like you have a three phase motor that you are trying to put in where you have a single phase 120volt motor. You can purchase a three phase inverter, but the cost will exceed the cost of the new motor sized for the right wiring and voltage.
