What information is required for the change of three phase electricity to two phase electricity

The two-phase electricity you are talking about should be the single-phase electricity used in daily life, right? Single-phase electricity is powered by a live wire and a neutral wire, and the voltage is 220 volts. If there is an electric light in the house, there is a neutral wire, so take any phase from the three-phase electricity and use the neutral wire.

If it is true that there is no zero line, you will need to bring in a zero line from outside the house. In addition to the wires, a single-phase watt-hour meter is probably required. Adjusting the route has no effect on the other two.

If you mean 380 volts of single-phase electricity, such as medium-sized welding machine electricity, then you can take two of the three phases. If you need to bill separately, you can add your own three-phase four-wire watt-hour meter. When the electricity consumption is large, it should be considered whether the original wire section is sufficient.

From a technical and safety point of view, a professional electrician should be used to guide or carry out the construction.

You can directly connect it from your meter, and if you don't, just find an electrician to pick it up for you, safety first.

You don't need any information, three-phase electricity is 380V electricity, you use a multimeter to measure whether the voltage between the three wires is 380VIf not, it means that you are not three-phase electricity, if it is 380, you want to change it to two-phase, you only need to find a root from it, and then find a 0 wire (or ground wire: that is, the line connected by an iron rod inserted in the earth) to become 220V, which is what you call bipolar electricity.

The difference between three-phase electricity and two-phase electricity:

First of all, from the appearance of electricity, three-phase electricity has two more live wires than two-phase electricity.

Secondly, the voltage level is different, 380V for three-phase electricity and 220V for two-phase electricity.

In addition, the use is also different, three-phase electricity is mostly used in enterprises and factories, such as motors, pumps, etc. Two-phase electricity is mostly used in homes, schools, hotels, etc. Such as lighting, household appliances, computers, TVs, washing machines, etc.

Single-phase electricity, two-phase electricity, and three-phase electricity are the names used in low-voltage three-phase four-wire (380V 220V) power supply systems. Single-phase means that the neutral line (neutral line) is composed of any phase wire (A, B, C) with a voltage of 220V. Two phases represent any two phase lines (AC, AB, BC) with a voltage of 380V.

Three-phase represents a three-phase (A, B, C) line with a difference of 120 degrees, 3 380V. For electrical loads, there are two types of connection (star and triangle) for the three phases.

<><1. How to change two-phase electricity to three-phase electricity

1. Electronic equipment can be purchased for rectification, such as frequency converters, and the rectification needs to be increased for inverter. The use of this method is very simple, and the efficiency is relatively high, but the cost will be relatively high, and it is easy to interfere with the use of other electronic appliances in the later stage, and it is easy to fail.

2. The capacitor and inductance are phase-shifted, the pressure is changed, and the 120-degree effect can be shifted through accurate combination. Its operation is very reliable, but the efficiency of the conversion will be lower, the volume is relatively large, and the finished product is also very small.

3. Go directly to the power supply bureau to apply for three-phase electricity, and the power supply bureau will arrange relevant personnel to go to the site for inspection, and after passing, it will arrange manpower to install it, which is very worry-free and trouble-free.

2. What are the differences between three-phase electricity and two-phase electricity

The electricity of the three-phase electric and two-phase electric generators belong to the three-phase electricity, and each phase and neutral point in the three-phase power supply can form a single-phase circuit to improve the daily needs of the user. Note that there is no positive or negative electrode in the AC circuit, only the wire end and the neutral wire.

3. How to apply for three-phase electricity

1. If you need to install three-phase electricity, you need to go to the power management department to submit the materials and fill in the application form, and you can wait for the relevant personnel to come to inspect and review.

2. The relevant person in charge will according to the actual situation, whether the three-phase electricity can be installed in the home of the frequent user, whether the conditions are met, etc. If the conditions are met, the owner will be contacted to go through the relevant procedures and determine how much it will cost.

3. When the procedures are completed, the fee needs to be paid within ten working days, and the installation of three-phase electricity will be carried out.

Three-phase electricity is first of all three wires, and is three live wires, and because they are symmetrically arranged in the generator, so the electric angle between them is 120 degrees, our country stipulates that the electricity standard is relative to the ground voltage of 220 volts, which is commonly known as the phase voltage, from which the voltage between the two live wires can be calculated, because the electric angle between the three live wires is 120 degrees, and the electric angle of the fire to the ground is 90 degrees, so the line voltage is 3 times the root number of the phase voltage, and the value of the root number 3 is, which is ultimately equal to 380, You are single-phase high-power can not be brought up is not correct, we all know, voltage and current are inversely proportional, a kilowatt of power using three-phase electricity is about two ampere current, and the use of single-phase is an electric current, the same reason there are extra-large motors to reduce the current, must use 660 volt voltage, others, three want to alternating current is also called alternating current, such as power frequency 50 Hz, that is, the current alternately transforms 50 times per second, it is also this principle, in the case of three-phase balance, the current on the zero line will cancel each other out, to achieve true zero voltage.

Many people think that three-phase electricity means that there are three wires, but this is not the case. We can't define it by the number of wires, it's called three-phase electricity because it has three live wires. The three live wires share a neutral wire, i.e. there are 4 wires.

However, in order to prevent leakage, 1 ground wire is added, that is, there are 5 wires.

The voltage of three-phase electricity is 380V, which is suitable for industrial electricity with relatively large power. For the user's electricity, take one of the live wires and the common neutral line to form a single-phase line, and the voltage is what we usually call 220V. For some electrical appliances with relatively large power, the normal household voltage cannot be brought up, so there will be three-phase electricity.

However, some people have said that there is a two-phase electricity between the single-phase line and the three-phase electricity, so what is the voltage of the two-phase electricity? According to the calculation law, the voltage of the two-phase electricity is also 380V. Don't think that a live wire and a neutral wire are two-phase wires, they are single-phase wires.

Basically, there is no two-phase wire, that is, three wires, and the voltage of two phase wires in the two-phase wire is extremely unstable. It is easy to cause the displacement of the zero line, so that the zero line is electrified, which will not only burn out the electrical appliances, but also may be electrocuted.

I hope I can help you with your doubts.

The connection method of three-phase electric transformation two-phase electricity: the color of three-phase electricity is yellow, phase B is green, and phase C is red, and there are currently the following names: a, b, c or L1, L2, L3 or U, V, W, the order is the same.

Evenly distribute the three-phase electricity to the six upper ends of the empty opening. The specific method is: the three-phase electricity under the empty switch from left to right is respectively; The first two-phase empty opening upper end is connected to 1 and 2 respectively; The second two-phase empty opening upper end is connected to 2 and 3 respectively; The upper end of the third two-phase empty opening is connected to 3 and 1 respectively; Then, the fourth empty opening is the same as the first empty opening method; The fifth air opening and the second air opening method are the same; The same is true for the sixth and third space openings.

In this way, the three phases under the three-phase empty open are evenly distributed.

Dear, did you see that it helped you?

Green with blue, red with gray, yellow, and green wires are temporarily connected to the safety side, and wait to buy three-core wires and then rewire.

Evenly distribute the three-phase electricity to the six upper ends of the empty opening. The specific method is: the three-phase electricity under the empty switch from left to right is respectively; The first two-phase empty opening upper end is connected to 1 and 2 respectively;

The second two-phase empty opening upper end is connected to 2 and 3 respectively; The upper end of the third two-phase empty opening is connected to 3 and 1 respectively; Then, the fourth empty opening is the same as the first empty opening method; The fifth air opening and the second air opening method are the same; The same is true for the sixth and third space openings. In this way, the three phases under the three-phase empty open are evenly distributed.

Hello, I have seen your question, please wait for five minutes while I am sorting out the answer for you. If you feel that my answer is helpful to you, please move your hands and give me a thumbs up, okay?

1. Distribute the three-phase electricity evenly to all the upper ends of the two-phase empty opening. That is, in order, the first two-phase open open to connect the yellow phase, the second empty open to connect the green phase, the third empty open to connect the red phase, and so on.

2. The total incoming zero line is connected to the zero row, and then the zero line of all other branches is connected from the zero row. In this way, the three phases under the three-phase empty open are evenly distributed.

3. The color of three-phase electricity is yellow, B is green, and C is red, and there are several labeling methods: yellow, green, and red correspond to the labeling names A, B, C or L1, L2, L3 or U, V, W.

through the inverter.

swarm, will be direct.

It becomes 50 60Hz single-phase alternating current. Then, through the auto-coupling Wood Bridge balance transformer (AWB), the two sets of single-phase alternating current are converted into three-phase alternating current, which is sent to the power grid. This kind of large-capacity balanced transformer not only has the function of voltage transformation and current conversion, but also has the function of disguise.

Its efficiency is above 99%, and its relative material utilization rate reaches 100%.

Inside the generator there is a rotor (rotating magnetic field) that is driven by the engine. There is a sub-winding outside the magnetic field, and the winding has 3 sets of coils (three-phase windings), and the three-phase windings are separated by an electric angle of 120° from each other.

When the rotor rotates, the rotating magnetic field causes the fixed stator windings to cut the magnetic field lines.

Or rather, make an electromotive force.

The magnetic flux passing through the windings.

change) and the amount of electromotive force that can be generated by the electric coil is directly proportional to the strength of the coil flux and the rotation speed of the magnetic poles.

Summary. It is necessary to divide the three-phase electricity into six empty openings. The procedure is as follows:

The three-phase electricity below the empty open is marked, and it is necessary to connect it above the first two-phase empty open. Then connect on the second two-phase empty above, and at the same time connect on the third two-phase empty open. Finally, use the same method to put the first separately.

Fourth, the first. Fifth, the sixth empty connection.

Hope mine is helpful to you.

How to wire three-phase electric transformer and two-phase electricity?

The three-phase electricity below the empty open is marked, and it is necessary to connect it above the first two-phase empty open. Then connect on the second two-phase empty above, and at the same time connect on the third two-phase empty open. Finally, use the same method to put the first separately.

Fourth, the first. Fifth, the sixth empty connection. Hope mine is helpful to you.

I am a four-wire kitchenware, but the socket is suspended with two wires, can I change it?

This is not possible, the kitchenware is three-phase, can not be changed to two-phase, and there is no electricity.

Oh, and a four-wire power supply is necessary?

That's right.

Thanks, got it.

Use two-phase electricity to drive a two-phase motor, and then use this motor to drive a three-phase generator to obtain three-phase electricity, and the phase angle difference of each phase electricity is 120 degrees; However, this method is inefficient and has many equipment, but what is obtained is three-phase sinusoidal alternating current. Or the one-phase electric parallel capacitor or series series inductance coil, from which the tap to obtain three-phase electricity, in which the phase angle difference of the two phases is 90 degrees; This method is highly efficient, the equipment is simple and cheap, but the result is not a three-phase sinusoidal alternating current.

Hello, the Y-type connection of 380V can be turned into a three-phase connection to become a two-phase electricity, and the connection of a fire and a zero line is just a single-phase 220V. It can be used on 220V three-phase power supply. As long as the power frequency remains the same, the motor speed remains the same.

Three-phase electricity is three phase wires, and the voltage between the three wires is 380V, which is used for three-phase power supply equipment such as three-phase motors; Two-phase electricity is two phase wires, and the voltage between the lines is also 380V, which is generally used more in AC welding machines; Single-phase electricity is composed of a phase wire and a neutral wire with a voltage of 220V, which is mainly used in household appliances. A generator that can produce an electric potential of equal amplitude, equal frequency, and 120° phase difference is called a three-phase generator; Using a three-phase generator as a power source, it is called a three-phase power supply; A circuit powered by a three-phase power supply is called a three-phase circuit; U, V, W are called three phases, and the voltage between the phases is the line voltage, and the voltage is 380V; The phase voltage between the phase and the neutral wire is called the phase voltage, and the voltage is 220V.

I hope it can help you, I wish you all the best, and look forward to your praise, thank you!