Appearance: First of all, from the appearance, three-phase electricity has two more live wires than two-phase electricity.
Voltage: Secondly, the voltage levels are different, three-phase electricity is 380V:
Single-phase electricity is 220V.
Use: In addition, the uses are also different. Three-phase electricity is mostly used in enterprises and factories, such as motors, pumps, and new energy vehicle charging. Two-phase electricity is often used in home and commercial fields, such as lighting, air conditioning, and home appliances such as Shenshi, new energy home charging piles, etc.
Three-phase electricity has four conductors, three of which are live wires and one is neutral wire. The voltage between the three live wires in three-phase electricity is 380V. Compared with two-phase electricity, three-phase electricity has higher transmission efficiency. Therefore, in the process of long-distance power transmission, it is more economical and energy-saving to use three-phase electricity.
Two-phase electricity has two wires, one is the live wire and the other is the neutral wire. The voltage between any live wire and the neutral wire is 220V.
Should I choose a two-phase 220V or three-phase 380V meter for my new energy vehicle?
- Apply for a new energy meter through the State Grid APP online to see how many phases the local policy supports
- Consult the 4S store sales when buying a car to see how many phases of charging piles are suitable for your car model
- When applying for a new energy meter, if local policies allow, try to apply for a three-phase meter. The three-phase meter supports a maximum of 22KW charging piles. For electric vehicles, using a three-phase charging pile can quickly charge the battery and shorten the charging time
