公开(公告)号：CA2798652A1

公开(公告)日：2011-11-17

申请号：CA2798652

申请日：2010-05-11

Applicant: ABB TECHNOLOGY AG

Inventor： HAFNER JUERGEN ,  ASPLUND GUNNAR

IPC: H01H33/59

Abstract: A high voltage DC breaker apparatus configured to break a fault current occurring in a high voltage DC conductor (15) comprises a current limiting arrangement (11) having at least one section (12) with at least one semiconductor device (13) of turn-off type and at least one arrester (14) connected in parallel therewith, and a mechanical DC breaker (18) connected in series with the current limiting arrangement and including a mechanical switch (19). The mechanical DC breaker is configured to enable breaking of a fault current in said DC conductor (15) once said semiconductor devices of said arrangement have been turned off.