The power distribution cabinet (box), lighting distribution cabinet (box), and metering cabinet (box) are the final equipment of the power distribution system. Distribution cabinet is the general term for electric motor control center. Distribution cabinets are used in situations where the load is relatively loose and there are few circuits; The electric motor control center is used in situations where the load is concentrated and there are many circuits. They distribute the electrical energy of a certain circuit of the distribution equipment to nearby loads. This level of equipment is responsible for load supply maintenance, supervision, and control. Below, Wuxi Shengminghua will briefly describe the technical requirements for the switching operation of the distribution cabinet.

Switching operation refers to the process of changing the machinery and equipment of a distribution cabinet from one condition to another, which includes opening or closing high-voltage blocking switches, distribution cabinet high-voltage blocking switches, fully automatic switches, residual current switches, direct current operation power circuits, fully automatic setting equipment (or relay maintenance device equipment), installation (or disassembly) of temporary wire joints in the distribution cabinet, etc.

Distribution cabinets are used to enhance various electrical equipment industries and will be applied to high-voltage and low-voltage switchgear equipment in the center of power engineering distribution cabinets. It is necessary to operate the switches and it is very critical. It is necessary to equip the distribution cabinet with a lock to prevent electrical equipment problems, thereby having a "fire maintenance" function to prevent the blocking switch from accidentally opening and closing and the switch from disconnecting. The load pulling and closing of the distribution cabinet prevent the grounding wire from being connected to the switch power supply, prevent the switch from reclosing with the grounding wire, and prevent the operator from accidentally adding charging gaps.