公开(公告)号：US3821608A

公开(公告)日：1974-06-28

申请号：US34875173

申请日：1973-04-06

Applicant: ASEA AB

Inventor： JOHANSSON A ,  LYCKSTEDT B

IPC: H01T4/20 ,  H02H1/04

CPC classification number: H01T4/20

Abstract: A surge diverter is mounted in an inner casing of electrically insulating material which is enclosed in an outer housing of electrically conducting material which is connected to earth. In the space between the inner casing and the housing a number of grading rings in the form of toroid rings are fastened to the inner casing at a distance from it. The grading rings are arranged at a distance from each other which increases counting from the top of the diverter.

公开(公告)号：SE380939B

公开(公告)日：1975-11-17

申请号：SE7301310

申请日：1973-01-31

Applicant: ASEA AB

Inventor： JOHANSSON A ,  LYCKSTEDT B

IPC: H01T5/00