1. National policies and regional restrictions

Nowadays, in many areas, especially large cities, local governments have begun to strictly limit the coverage of industrial three-phase electricity for environmental and safety reasons. National policies have also begun to tighten. The procedure for applying for industrial electricity has become cumbersome, and personal application is even more difficult. With the increase in labor costs and raw material costs, the cost of wiring is also unacceptable to many people. Industrial three-phase electricity cannot be used, the original mechanical equipment can only be replaced, and the intangible cost is further increased.

2. Personal and business needs are improving

As we all know, large-scale mechanical equipment is driven by motors, and domestic equipment is basically three-phase 380v power consumption. In common sense, these large-scale equipments are used by enterprises, and personal use is rare. In terms of motor power, companies can apply for industrial power (relative to individual applications), and motor power can range from a few hundred watts to hundreds of kilowatts. If there is no industrial electricity, such as the machinery used by individual households or self-employed households, only motors that support single-phase 220V or household electricity can be used. This type of motor has limited power and the common maximum power is 3kw. And single-phase motors are basically used by additional starting capacitors and operating capacitors, and the stability and service life are not comparable to ordinary three-phase asynchronous motors. For equipment with motor power requirements greater than 3kw, there is no three-phase power and only alternative solutions can be found.

3. Existing methods for solving problems

One is to buy a voltage booster. The problem is that the booster is too cumbersome, expensive, and expensive to use. For the increasingly competitive market, it is definitely not cost-effective; the second is to replace the use of the occasion, the problem is too limited by human factors, extremely inconvenient, and the cost of transit electricity is not low.

4. Demand for other special occasions

First, mobile mechanical equipment (such as drag-type high-power mechanical equipment, dust collectors, winches, etc.) need to be used in various occasions. If there is no three-phase electricity, it cannot be put into production quickly. Second, import and export machinery power equipment The use of electricity in the country and the production country does not match, there is no electricity consumption condition, and only the method can be used to convert the voltage, which further increases the difficulty of use and affects the willingness of customers to deal with.

In response to the above market demand, our company has introduced a single-phase 220V input to three-phase 380V output boost converter, which can drive the three-phase asynchronous motor to operate normally and can carry out stepless speed regulation. The input power only needs single-phase 220V and outputs three-phase 380V. The price is acceptable to most users. It is about 1/3 of the price of a single-phase 220V variable three-phase 380V booster on the market. It is compact and powerful. The output frequency of 0-650Hz can be adjusted arbitrarily, completely solving the embarrassing situation that mechanical equipment does not operate without three-phase electricity.