Trench & HSP Group – Ready to be your bushing partner
The Trench & HSP Group is one of the largest bushing manufacturers in the world. It operates bushing factories in Germany, France and China. From these factories comes a wide range of bushing products for Power Transformers, Gas Insulated Substations, Breakers, Generators, Buildings, Test Equipment, Rail Road Systems and other special applications. The patent of Emile Haefely for Oil impregnated paper (OIP) condenser type bushings in 1937 was the basis for the success in the bushing market.