How to connect the 220V meter to the 380V vertical air conditioner?

Vertical air conditioners often use 380 volts, mainly considering the high power of air conditioners, while single-phase 220 volts, the power is generally relatively small, that is, more than ten kilowatts. Even if it is connected, it is easy to go wrong. After all, there are still many places in your home that need electricity, and the switches and lines can't bear it.

First, check whether the power of your watt-hour meter can meet the power requirements of this motor.

② If the current of the watt-hour meter can meet the control requirements, it can be directly connected. However, X3 is needed to calculate the electricity.

(3) If the current of the watt-hour meter can't meet the control requirements, it is connected as a current transformer, and the power is calculated by multiples of X3X current transformer.

Please state

1. You can apply for three-phase electricity from the Electric Power Bureau. It doesn't seem to cost too much to apply for three-phase electricity now. It's just that the application time and process are a little troublesome, and all kinds of certificates are needed. But once you apply, it will be much more convenient for you to use it for a long time.

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There is something called frequency conversion power supply, which can really change single-phase electricity into three-phase electricity, but this kind of thing is very expensive, so it is not worthwhile for you to buy it back.

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3. If you simply buy a transformer, first change 220 volts to single-phase 380 volts, and then find a cheap industrial inverter to output 380 volts, which can make do for the time being, but the harmonics are very large. Afraid of serious fever and high power consumption during production. This is not recommended.

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You can also find a big battery pack. Lithium batteries are not recommended. It's too dangerous. It is in series and parallel. The whole 535-volt DC bus comes out and is powered by single-phase electricity. After fully charged, connect the inverter to output 380 volts three-phase electricity to the air conditioner. This plan is also possible, but the price is very expensive.

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5, find a small generator or something, and directly use air conditioning to generate electricity. This scheme is economical, but the noise is too loud. Unless you are in your own home, your neighbors will complain about you.

Finally, sell the 380 volt air conditioner and buy a 220 volt single-phase air conditioner. If the cooling capacity is insufficient, you can buy another one.