At present, the performance requirements for ring main cabinets are very high nationwide, and people are paying more and more attention to high voltage switchgear. So what is the development trend of ring main cabinets?
1. Develop new high-performance insulation materials
Epoxy resin paint, as an insulation material for solid insulation epoxy tanks, although it performs well, there are still cracking problems in the filled vacuum fire compartment and ring network cabinet. Therefore, it is necessary to develop a functional and degradable epoxy resin that completely surpasses existing epoxy resins.
2. Developing useful casting skills
The conventional epoxy resin filling process requires a lot of time and effort, and in order to solve the problems of high cost and low efficiency, practical casting techniques need to be developed. By improving the catalyst and adopting the liquid solidification analysis method, the composition of the resin catalyst was optimized, and the temperature of the metal mold was controlled. The tree shaped high-voltage switchgear grease can play a good role at the top of the injection hole, shortening the resin during the hardening process, providing non-metallic resin pressure to the pouring hole, and casting without deformation. spare parts. An effective pouring method, pouring 8-12 times a day, can produce 14 castings per metal mold. Compared to before, the output value has increased by 8-160 times. Produce a batch of inexpensive and high-quality castings at a low price.
3. Developing interfaces between embedded components
The solid insulation ring insulation cabinet body injects fixed insulators into the main circuit wires to fill the components, making the connections between the embedded components insensitive. Therefore, it is necessary to adjust the connection between the wires and various castings to rationalize all components of the ring network cabinet. The connection of conductors also needs to be cast with epoxy resin. Therefore, adhering to the coupling with castings requires a reasonable product with a certain degree of freedom, and a die-casting connection technology for silicone rubber and conductor joints has been developed. By connecting through this interface, the connection standard can be reduced, the receiving end connection can be normalized, and the receiving end can be reasonably configured to reduce the overall planning of the solid-state insulation ring.
