公开(公告)号：DE19517540A1

公开(公告)日：1996-11-14

申请号：DE19517540

申请日：1995-05-12

Applicant: ABB RESEARCH LTD

Inventor： BRUEHL BODO DR ,  JUELKE ELIAS DR ,  KALTENEGGER KURT DR ,  NIEMEYER LUTZ DR ,  RITZER LEOPOLD

IPC: H01H33/98 ,  H01H33/70 ,  H01H33/76 ,  H01B3/30

Abstract: The arc extinguishing chamber has a pair of electrical power connections (1,2) and in between are switching contacts that are in the form of fixed spring contacts (3) and an axially movable pin (4). The chamber has a toroidal shaped heating space (7) formed between a cylindrical isolator (8) and an isolating nozzle stage (9). A ring shaped channel is created (10) between the parts. An arc extinguishing material is formed as a coating and during an arc generating switching operation, when the contacts separate, extinguishing gas is produced. The material has a microcapsular structure that releases that gas.

公开(公告)号：DE4446944A1

公开(公告)日：1996-07-04

申请号：DE4446944

申请日：1994-12-28

Applicant: ABB RESEARCH LTD

Inventor： JUELKE ELIAS DR ,  BRUEHL BODO DR ,  RITZER LEOPOLD

IPC: H02B13/025 ,  H01B3/10 ,  H02B13/02 ,  H02G5/06 ,  H02B13/045 ,  H01B3/30 ,  H01B3/48 ,  H02B5/06