The conductor of the common box enclosed busbar adopts copper-aluminum conductor or aluminum-aluminum-copper conductor. The structure is compact, easy to install, and the operation and maintenance workload is small. The protection level is IP54, which can basically eliminate the grounding fault caused by external moisture, dust and foreign matter.
The shell is made of aluminum plate, which has good corrosion resistance and avoids the additional eddy current loss caused by the steel shell. The shell adopts multi-point electrical connection and grounding, which eliminates the risk of electric shock, simplifies the requirements for civil engineering, and does not need to set up a grid.
The user needs to install heat shrink tubing on the busbar, and install heaters, respirators, etc. in the box to strengthen insulation.
The application scope of the phase-separated closed bus duct in large power plants: from the generator outlet terminal to the main transformer low-voltage side lead-out terminal main circuit busbar, and the independent inquiry busbar leads to the plant high-voltage transformer, voltage transformer, lightning arrester and other equipment cabinets.
