The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs.
Such as instruments, automatic controls, motor magnetic switches, various AC contactors, etc., some also have high-voltage room and low-voltage room switch cabinets, high-voltage busbars, such as power plants, etc. load shedding.
The main function of the switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. The components in the switchgear mainly include circuit breakers, isolating switches, and load switches. , operating mechanism, transformer and various protection devices. There are many classification methods of switch cabinets. For example, according to the installation method of circuit breakers, it can be divided into removable switch cabinets and fixed switch cabinets; or according to the different cabinet structures, it can be divided into open switch cabinets, metal-enclosed switch cabinets, and metal Closed armored switchgear; according to different voltage levels, it can be divided into high-voltage switchgear, medium-voltage switchgear and low-voltage switchgear. Various occasions such as residential quarters and high-rise buildings.
The main categories of switchgear are: low-voltage withdrawable switchgear, low-voltage fixed partition switchgear, low-voltage withdrawable power distribution cabinet, GCS type power distribution cabinet, medium and low-voltage power distribution cabinet (box), armored removable switchgear, fixed Low-voltage switchgear, AC low-voltage power distribution panel, high-voltage capacitor cabinet, high-voltage switchgear, high-voltage metering cabinet, and non-power automatic compensation panel.
Low-voltage switchgear is suitable for power plants, petroleum, chemical industry, metallurgy, textiles, high-rise buildings and other industries. It is used for power transmission, power distribution and energy conversion. The product complies with GB7251.1-2013 'Low-voltage switchgear' 1999) standard regulations. Low-voltage switchgear is a product listed in the 'Catalogue' of 3C certification compulsory certification products.
High-voltage switchgear refers to the role of on-off, control or protection in power system power generation, transmission, distribution, power conversion and consumption. High-voltage switchgear is used as electrical products with a voltage level of 3.6kV~550kV, high-voltage isolating switch and grounding switch, high-voltage load switch, high-voltage automatic reclosing and sectionalizer, high-voltage operating mechanism, high-voltage explosion-proof power distribution device and high-voltage switchgear, etc. category.
