The solid insulated ring main unit is a combination of three technologies including external solid sealing, insulated busbar and combined unit miniaturization. The switch and high-voltage live parts are integrally cast with epoxy resin, and the epoxy resin is solid-sealed as the live body to the ground. And new power distribution equipment with phase insulation. The solid insulated ring network cabinet does not emit any toxic substances, has no hidden dangers of gas leakage, explosion and internal arcing, and has the characteristics of high insulation performance, high overall strength, and maintenance-free. The solid insulated ring network cabinet eliminates the application of pressure vessels. The internal insulation and arc extinguishing of the switch body adopts a vacuum medium, and the external insulation adopts an insulating cylinder to solidify the switch parts, and each circuit is connected by a closed bus. The insulating cylinder adopts solid-sealed pole technology, which organically combines the vacuum interrupter, the main conductive circuit and the insulating support to achieve a fully insulated, fully sealed and maintenance-free structure. The insulating cylinder is made of epoxy resin material, and the bus bar is encapsulated with a silicon rubber material. This structure effectively slows down the corrosion of the power supply body due to the isolation of air, moisture, dust, and hot and cold air sources.
Solid insulation ring network cabinet structure
1. Completely eliminate SF6 gas in the solid insulated ring network cabinet, use insulating sleeves to solidify the switch parts, and block the bus to connect each circuit. Completely sealed and insulated as a whole.
2. Using solid-sealed pole technology to organically separate the vacuum interrupter, main conductive circuit, and insulating support into a whole, complete a fully insulated, fully sealed, maintenance-free structure, and complete a removable unit structure.
3. The insulation sleeve is used for solid sealing, which can treat the surface of the arc extinguishing chamber without being polluted by the surrounding environment. It has greatly improved the insulation performance, anti-fouling and anti-condensation capabilities, and at the same time, it has improved ozone resistance, UV resistance, and anti-aging Capacity and mechanical strength.
4. The vacuum interrupter adopts the products of domestic famous enterprises such as Xuguang and Zhenguang, and strictly controls the quality of production. At the same time, in order to further ensure the reliability of the vacuum arc extinguishing, the arc extinguishing chamber was completely inspected before and after pouring, and the pressure test was stopped respectively.
5. The outer layer of the vacuum interrupter is filled with vacuum pouring, and the outside is equipped with a sealed epoxy resin, which enhances the maintenance of the vacuum interrupter.
The core technology of solid insulated ring network cabinet
1. The bus bar in the cabinet adopts vacuum casting technology.
2. The switch components of the ring main unit adopt solid-sealed pole technology, and epoxy resin encapsulates the main switch in a vacuum, which greatly improves the safety of the product.
3. The superiority of the mechanism, the necessary configuration of the vacuum switch: isolation mechanism.
4. The automated terminal and modular design make the intelligent upgrading of the solid insulated ring network cabinet feasible and easy to operate.
