Three-phase Electric Heating Equipment
Three-phase asynchronous motors, three-phase electric heating equipment, three-phase rectifiers, three-phase air conditioners and other high-power electrical equipment must be powered by three-phase 380V. The most common is the three-phase 380V asynchronous motor, which can be found everywhere from factories, mines, to enterprises. Wherever power is needed, there is a three-phase motor. It is the most basic power source and an indispensable electrical device.
What electrical appliances use three-phase electricity?
Three-phase electricity has three phase wires, with 380V between phase wires and 220V between a phase wire and the neutral wire, which is the same as the household appliances we use daily.
But now many high-power air conditioners use 380V because it allows for smaller currents.
Rectifiers are present in most modern electronic circuits because they convert AC to DC, supplying direct current. Common types include linear DC power supplies and switching power supplies, both of which contain a rectifier section. However, household appliances probably do not have a rectifier that steps down from 380V to 220V; at least I have never seen one, because 220V is easily obtained with one phase wire and one neutral wire.
What electrical appliances use three-phase electricity?
High-power appliances (several kilowatts and above) mostly use three-phase power supply. Therefore, there are many three-phase appliances.
The most common are three-phase motors and three-phase high-temperature furnaces.
The advantage of three-phase electricity is that three wires can provide three times the electrical power of two wires (single phase).
Common three-phase motors, three-phase air conditioners, large three-phase kitchen equipment such as ovens, rice steamers, induction cooktops, etc.
