The control cabinet is to assemble the switchgear, measuring instruments, protective appliances and auxiliary equipment in the closed or semi closed metal cabinet or on the screen according to the electrical wiring requirements. Its layout shall meet the requirements of the normal operation of the power system, facilitate maintenance, and do not endanger the safety of people and surrounding equipment. During normal operation, the circuit can be switched on or off by means of manual or automatic switches. In case of fault or abnormal operation, cut off the circuit or give an alarm with the help of protective appliances. Various parameters in operation can be displayed by measuring instruments, and some electrical parameters can be adjusted to prompt or send signals for deviation from normal working conditions. It is commonly used in power generation, distribution and substation. Distribution cabinet installation