HXGN port-12(Z) type AC high-voltage vacuum ring network switchgear is a three-phase AC 50Hz, rated voltage 12kV vacuum load switchgear independently developed by our company, referred to as vacuum ring network cabinet, suitable for ring network power supply and industrial and mining applications in 10kV systems Power supply and distribution systems for enterprises, high-rise buildings, residential areas, etc. The main switch adopts vacuum fox arc extinguishing, which has the advantages of strong breaking capacity and reliable performance, and is especially suitable for frequent operation modes.

The vacuum ring main unit is composed of two types of cabinets: a vacuum load switch cabinet and a vacuum load switch-fuse combination electrical cabinet. Vacuum load switches and vacuum load switch-fuse combination appliances all adopt the principle of vacuum arc extinguishing; the dynamic and static contacts are enclosed in the vacuum arc extinguishing chamber. During breaking, the vacuum arc rapidly diffuses the metal vapor when the power supply crosses zero. The arc is extinguished and the insulation strength recovery ratio is Air is much faster, so it has good breaking performance and reliable operation. The transfer current of air load switch (gas-generating or compressed air load switch) combination appliances can generally only reach about 1000A, while the transfer current of vacuum load switch-fuse combination appliances The current can reach 3150A (can be larger), and the operation safety is more reliable.

This product complies with the relevant regulations of IEC298, GB3906, GB3804 and other standards.