Main Features Of High And Low Voltage Distribution Cabinets

Main features of High And Low Voltage Distribution Cabinets:

1. There are primary and secondary schemes, which are specific functional signs of high and low voltage distribution cabinets, including electric energy collection, distribution, metering and protection function electrical circuits. A switch cabinet has a certain main circuit (primary circuit) scheme and an auxiliary circuit (secondary circuit) scheme. When the main scheme of a switch cabinet cannot be implemented, it can be combined with several unit schemes;

2. High and low voltage distribution cabinets have certain operating procedures and mechanical or electrical interlocking mechanisms. Practice has proved that the lack of "five protection" functions or "incomplete five protection functions" is the main cause of power accidents;

3. High and low voltage distribution cabinets have grounded metal shells, which have supporting and protective functions. Therefore, it is required to have sufficient mechanical strength and rigidity to ensure the stability of the device. When a fault occurs in the cabinet, there will be no external effects such as deformation and breakage. At the same time, it can also prevent the human body from approaching live parts and touching moving parts, prevent external factors from affecting internal facilities, and prevent equipment from being accidentally impacted;

4. High and low voltage distribution cabinets have the function of suppressing internal faults. "Internal faults" refer to faults caused by arc short circuits inside high and low voltage distribution cabinets. Once an internal fault occurs, it is required to limit the arc fault to the compartment.