Gas filled bushings with potential shields

摘要

A gas filled bushing is disclosed as comprising an outer grounded shield, an inner grounded shield and an intermediate potential shield mounted on the inner grounded shield by means of an axial insulator and extending between the inner grounded shield and a central conductor. In a modified embodiment a plurality of intermediate potential shields are disposed concentrically between the central conductor and the inner grounded shield so as to more efficiently control the potential distribution along the outer surface of the bushing.