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In a single-phase circuit like a house fed from 4-wire three phase in the street, the current flows in the live and neutral wires. The neutral currents from a street of houses are expected to cancel each other so that the overall current in the neutral leaving the transformer is small.

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Q: What function does the neutral serve when the supply is single phase in a wye connection?
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What is a function of neutral wire?

to complete the circuit and back to power supply


What is a 100 amp 208 single phase?

That is 20.8 kVa but a 208 v single phase supply is very rare. 208 v is usually three-phase, with 120v between neutral and the live wires.


How you can convert 1-phase voltage to 3-phase voltage and vice-vars a?

A single-phase supply is obtained between any two line conductors or between a line and neutral conductor of a three-phase supply. To obtain a three-phase supply from a single-phase source is far more difficult, and requires additional equipment.


How do you convert 3phase connection to 2 phase?

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.


How do you connect a 230V lamp to a 415V supply with no neutral?

Theoretically, you could connect three identical lamps in star (wye) and connect this to the three line conductors. But as you asked how to connect a (single) 230-V lamp to the supply, then the answer is by using a step-down transformer.

Related questions

What is the function of neutral wires?

to complete the circuit and back to power supply


Why cant take connection from phase line to neutral line?

A connection can be taken between phase lines, or between one phase and neutral. Both methods give a single-phase supply. Between phases the voltage is sqrt(3) times more than between one phase and neutral. In each case the load gives an unbalanced current on the 3-phase system but the idea is to average out the unbalances over a group of single-phase loads.


Where is the neutral for 25kv ac single phase supply used for electric locomotives?

from ground


What is a function of neutral wire?

to complete the circuit and back to power supply


Why floating neutral in a three phase supply is undesirable?

Floating neutral in 3 phase supply is undesirable as if the same thing occurs then there will be bad effect for all single phase equipment which we are using as phase to neutral voltage will exceed from its normal value and it will harm the equipments.


Can you convert 415v 3 phase to 230v single phase?

415V 3 phase is the line to line voltage. The line to neutral of this supply is 230V single phase. Therefore you use one of the phases and the neutral.


What is the voltage for a single phase from a 415 volt 3 phase and neutral supply?

240V. 415 / 1.73 = 240


What will happen if you change Phase and neutral connection to single phase motor?

Most likely is going to explode. Put 120 psi on a car tire rated for 35psi and you will have the same effect.AnswerThe circuit's protective device will disconnect the motor from the supply, It will not explode!


Why high voltage step down transformer uses delta as primary and wye connection as secondary?

because usually the step down transformers are used for supply so it requires neutral(return)path, we cant take neutral path through delta connection hence the star connection is used and mostly in step-down the star connection is used.


Why theres a reserve pin in 24 pin power supply connector?

Reserve pin fool proves the connection by allowing the connection only in a single way.


Can you use phase voltage as a single phase?

A single phase supply can be obtained between any pair of line conductors or between a line conductor and a neutral conductor.


What is the difference between an open delta and an open wye connection?

An open delta connection is a delta connection with one phase removed, but still supplied with three line conductors. An open wye is a wye connection with one phase removed, supplying a three line conductors and a neutral conductor. An open-delta/open-wye is a method of providing a reduced-load three-phase supply using just two single-phase transformers, rather than the preferred method of using three single-phase transformers.