Switch cabinet is an electrical equipment, the switch cabinet outside the main control switch into the cabinet, and then into the control switch, each tap according to their needs set. such as instrumentation, automatic control, motor magnetic switch, a variety of AC contactors, etc., and some also set high-pressure chamber and low-voltage chamber switch cabinets, with High-voltage bus, such as power plants, and some are also equipped with the main equipment for low weekly load reduction.
The main function of the switch cabinet is to open, control and protect the electric power equipment in the process of electricity generation, transmission, distribution and electric power conversion. The main components in switchgear are circuit breakers, isolating switches, load switches, operating mechanisms, transformers and various protective devices. There are many types of switch cabinets, such as through the installation of circuit breakers can be divided into open switch cabinets and fixed-type switchgear; or in accordance with the different structure of the cabinet, can be divided into open switch cabinets, metal closed switchgear, and metal closed armored switchgear cabinet, according to different voltage levels can be divided into High-voltage switchgear cabinets, Medium voltage switchgear and low-voltage switchgear and so on. Mainly applicable to power plants, substations, petrochemical, metallurgical steel rolling, light textile, industrial and mining enterprises and residential quarters, high-rise buildings and other occasions.