As the name implies, the high and low voltage power distribution cabinet is the power distribution equipment used for power distribution, control, measurement and cable connection in the power supply system. Generally, the power supply bureau and substation use high voltage switch cabinets, and then the low voltage side is stepped down by a transformer. Lead out to the low-voltage power distribution cabinet, the low-voltage power distribution cabinet to the various power distribution panels, control boxes, switch boxes, inside is through some protection devices such as switches, circuit breakers, fuses, buttons, indicators, meters, wires, etc. Equipment assembled into a power distribution device that meets the design functional requirements. Commonly known as: high and low voltage switchgear or complete sets of high and low voltage electrical equipment.