Silicon-organic resin for dry-type transformers

THE advantages of using silicone-based products in dry-type insulating systems are well known. They are characterized by stability at high operating temperatures and by resistance to the absorption and harmful effects of moisture. These advantages must be weighed against the difficulties which may arise in conjunction with silicone applications. The dielectric strength, mechanical strength, and curing characteristics for a given application are, in general, inferior to those of the best organic resins. High cost is also a limiting factor in many silicone applications.