A three-phase socket is a type of socket. The socket panel holes are 4 holes (connected to 3 phase live wire and 1 neutral wire), and the power supply voltage is generally 380V AC, (mostly AC equipment in industry) , A device that provides convenient power for it. Three-phase power is a form of transmission of electrical energy. The full name is three-phase AC power supply. It is a set of three-phase power with equal amplitude, equal frequency, and 120 degrees phase angle. They are generated by three winding three-phase generators.
Three-phase socket, including base and metal contacts with terminals fixed on it,
The shell of each contact corresponding to the jack is characterized by being provided with two insertion seats, and the corresponding contacts are connected by a conductive sheet to form a type of two complementary insertion seats, and isolation is provided between the jacks on the inner side of the shell. board. When a three-phase plug is inserted into one insertion seat and the phase sequence is found to be inconsistent, then the other insertion seat is inserted, and the phase sequence can be matched without opening the plug or the equipment to turn the wire.
It has the advantages of changeable plug phase sequence, flexible and convenient use, and arc isolation, and it is safe and reliable to prevent rain and dust.
Three-phase sockets are generally sockets for power equipment, which is what we usually call 380V voltage. Of course, we also choose two-phase use according to needs, that is, 240V voltage, but it is generally not recommended for non-professionals to change and use Phase line, this can easily cause a short circuit and an accident.
(1) According to the voltage category of the electrical equipment: DC or AC; rated voltage and maximum working voltage; rated current.
(2) According to the functional requirements and installation methods of the electrical equipment.
(3) According to the use environment of the electrical equipment: indoor and protection level.
(4) According to the panel style, color and decoration requirements in architectural design.