公开(公告)号：US3586909A

公开(公告)日：1971-06-22

申请号：US3586909D

申请日：1969-04-28

Applicant: ASEA AB

Inventor： THORSTEINSEN THOR ERIK ,  LARSSON VALTER

IPC: H02H7/16

CPC classification number: H02H7/16

Abstract: For protecting series capacitors in high voltage electrical conductors, two circuits are provided in parallel with the capacitor, each containing a spark gap and a switch. A third switch constituted by a breaker can short circuit the capacitor. A control device is provided which, when one of the spark gaps ignites, closes the breaker, and thereafter opens the switch in the circuit of the ignited spark gap. When the fault ceases, the breaker opens and, shortly thereafter, the opened switch is reclosed.

公开(公告)号：US3585437A

公开(公告)日：1971-06-15

申请号：US3585437D

申请日：1968-11-27

Applicant: ASEA AB

Inventor： THORSTEINSEN THOR ERIK ,  LARSSON VALTER

IPC: H01T1/00 ,  H01T2/02 ,  H01J1/46

CPC classification number: H01T2/02 ,  H01T1/00

Abstract: A spark gap is composed of inner and outer electrodes enclosed in a casing. The inner electrode is formed of spaced bars shaped as circular arcs and the outer electrodes of straight parallel bars. The bars of each of the electrodes are electrically connected to each other at one end and spaced apart at the other end.

公开(公告)号：US3532933A

公开(公告)日：1970-10-06

申请号：US3532933D

申请日：1968-02-29

Applicant: ASEA AB

Inventor： LARSSON VALTER ,  THORSTEINSEN THOR ERIK

IPC: H01G2/14 ,  H02H7/16

CPC classification number: H01G2/14