We are one of the top power distribution transformer manufacturers in China. Many clients who have ever douted whethter we us the vacuum resin cast technology to produce the resin cast dry type trasformers. Lets talk about it.
First of all, we should understand that the insulation medium of epoxy resin dry-type transformers is a resin mixture without bubbles. Due to its high resistivity and good insulation performance, epoxy resin is selected for manufacturing dry-type transformers in our workshop;
The key point is that we use the vacuum pouring process to produce coil casting dry-type transformers because epoxy resin can be immersed in the layer gaps and line gaps between the high-voltage coil enameled wires, which can improve the withstand voltage performance of the high-voltage coil, reduce noise, and extend the service life of the dry-type transformer;
In addition, the evenly mixed potting material after special treatment and solidification has excellent mechanical properties and longer service life;
Another very important point is that the surface of vacuum encapsulated products after solidification is free of bubbles and casting sand holes, which can effectively reduce partial discharge in dry-type transformers;
Finally, the vacuum encapsulation production process can achieve efficient and pollution-free production. We choose this process to manufacture dry type power transformers, which is precisely the responsibility of our factory for environmental protection.