Using materials and modern manufacturing systems, GENERMEX produce half coils, also called Roebel bars. This type of construction is characterized by the conductors shorted at the ends and transposed in part or in full length. Each conductor is covered with layers of fiberglass and dacron.
The main insulation is Class “F” and it is made from layers of mica tape with epoxy resin. At its straight side, the coils are coated with a semiconductor film to prevent partial discharge slot. At its ends, the coils are coated tape grader potential, to avoid surface discharges.