Semi-insulated ring network cabinet

Semi-insulated ring network cabinet is a common substation equipment in the power system. Its structure is mainly composed of armored cables and semi-insulated switches (usually using vacuum circuit breakers). This switch has a lower arc voltage during operation, so it does not require a fully enclosed and fully insulated structure. Semi-insulated ring network cabinet is characterized by relatively low price, small footprint and easy installation. However, since it does not have a fully enclosed and fully insulated structure, it is necessary to pay attention to avoid leakage and other problems during operation.

In addition, the cabinet structure of the semi-insulated ring network cabinet includes isolation room, bus room, power distribution room, fusing room and other parts. Its compact structure and fewer connectors improve the reliability and maintenance convenience of the cabinet. The main components include main switch, isolation switch, auxiliary contact, fuse, current transformer, voltage transformer, electric meter, etc. Each part has its important role and function.

Overall, semi-insulated ring network cabinets play an important role in power systems, but their insulation performance is slightly inferior to that of fully insulated ring network cabinets, so the actual environment and conditions need to be taken into account when selecting and using them.