Trench is one of the largest bushing manufacturers in the world. It operates bushing factories in France and China as well as a bushing sales office in Canada. 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.

Trench Bushings are available in a wide variety of internal insulation technologies including Oil Impregnated Paper (OIP), Resin Impregnated Fiberglass (RIG), Epoxy-Resin Impregnated Paper (ERIP) and SF6  gas. In addition Trench Bushings are available with a variety of external insulation materials including porcelains in brown or grey; Epoxy-resin for indoor applications; and, Silicone Rubber compounds for heavy pollution or high seismic areas.

A bushing is an electrical engineering component that insulates a high-voltage conductor passing through a metal enclosure or a building. Bushings are needed on:

  • Transformers
  • Buildings
  • Gas insulated switchgear (GIS)
  • Generators
  • Other high-voltage equipment

Whatever your requirement is, Trench has the right bushing for your application.

Product Portfolio