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If you have three adjacent houses each with a single-phase supply taken from different phases in a three-phase cable in the street, the total power is equal to the sum of the powers in each of the three phases.

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9y ago
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12y ago

It is not practical to do what you are asking with a three-wire system.

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Q: How do you calculate 3 phase load from single phase values?
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How the design load is calculated?

from single phase we have to calculate load design in a room 3fans, 1fridge, 1iron, 1mixer, 1kitchen, 1toilet.


How do you calculate full load in single phase circuit?

The question has to be more specific. Full load amps, watts or voltage. Please restate your question.


What are the uses of single phase or three phase motor?

torque load, generation load, power correction load


How do you wire a three phase four wire generator for single phase output?

In a three phase four wire system - voltage between any one phase and the neutral is single phase. Hence the single phase equipment or load between any one phase and the neutral.Another AnswerA single-phase load can be connected either between any line conductor and the neutral conductor, or between any pair of line conductors. The choice is dependent on the voltage rating of the load, which must match either the phase voltage (line-to-neutral) or line voltage (line-to-line) -these values will be indicated on the machine's nameplate.


Why is the amperage in single phase double than of 3 phase?

If I have 1 KW In 3 Phase it will give 1.54 A and In single phase it will give 4.6 AFor cosF 0.9V 415 3 phV 240 1 phIt seems the reason is because the current is carried on more wires. Also, remember that if wattage stays constant, then as voltage increases, current decreases.AnswerIt really depends on the load. Are you assumining the three-phase load to be the same as the single-phase load or, as it is likely to be in practice, three times the value of the single-phase load?But, in either case, the single-phase current will not be double the the three-phase (line) current!The equation for the load current supplying a single-phase is: I = P / (E x power factor)The equation for the line current supplying a balanced three-phase system is: IL = P / (1.732 x E x power factor)If you insert real figures into these equations, (240 V for the single-phase voltage and 415 V for the three-phase line voltage) then you will find that, when the three-phase load is threetimes that of the single-phase load, the supply currents will be exactly the same. On the other hand, if you assume that the three-phase load is exactly the same as the single-phase load, then you will find that the three-phase line current will be one-third that of the single-phase current.


How do you calculate watts to amps?

The most basic calculation is volts multiplied by amps of a circuit for a single phase load.


What will happen if 2 phase load is connected to generator?

There is no such thing as a two phase load any more. Any two legs from a three phase system are classed as single phase. If this single phase load is connected across the generator it will induce an imbalance in the output voltages of the generator. This is one reason that single phase loads on a three phase generator should be shifted around to find the best possible balance.


What will happen if single phase load is connected to three phase circuit?

To obtain a single-phase supply from a three-phase supply, the single-phase load must be connected either (a) between any pair of line conductors, or (b) between any line conductor and the neutral conductor. Of course, the voltage obtained from either of these connections must match the voltage rating of the load.


What cannot be considered a single phase?

Any load that needs three legs from a three phase system can not be considered single phase. Single phase from a three phase system only needs a connection to two legs.


In a 240 volt single phase circuit A phase is 4000 watts B phase is 7000 watts what is the neutral load?

Question is incorrect. in a 240 Volt single phase circuit, how can you have A phase and B phase?


How do you calculate kwh in three phase?

In exactly the same way as you do so for a single-phase load. It's the product of the power of the load, expressed in kilowatts, and the during of operation, expressed in hours. (And the symbol of kilowatt hours is 'kW.h', not 'kwh')


What is the difference between single and three phase on line UPS?

The difference between a single and a three phase online UPS is a 3 phase can supply a 100% unbalanced load on its output without affecting its performance. A single phase cannot supply a 100% unbalanced load on the output without affecting its performance.