公开(公告)号：JP2001076596A

公开(公告)日：2001-03-23

申请号：JP2000250042

申请日：2000-08-21

Applicant: ABB RESEARCH LTD

Inventor： CLAESSENS MAX ,  KALTENEGGER KURT DR

IPC: H01H33/90 ,  H01H33/915

Abstract: PROBLEM TO BE SOLVED: To provide a pressurized gas-blast breaker capable of extinguishing an arc reliably and requiring no large driving energy. SOLUTION: This pressurized gas-blast circuit breaker is provided with an arc region and first and second piston chambers 7, 8 divided by a piston 6 in a piston chamber, and both piston chambers 7, 8 are communicated with the arc region via a common gas passage 11. The first piston chamber 7 has a first opening 10 for discharging the compressed arc extinguishing gas, a second opening 12 is arranged in the piston chamber communicating the second piston chamber 8 with the gas passage 11 at least sometimes, the first opening 10 and second opening 12 merge with the gas passage 11, and the gas passage 11 flows into the arc region on the gas passage side. The first opening 10 flows into the gas passage 11 on the arc region side of the second opening 12, and the second opening 12 flows into the gas passage 11 on the arc region side of the first opening 10.

公开(公告)号：DE19939940A1

公开(公告)日：2001-03-01

申请号：DE19939940

申请日：1999-08-23

Applicant: ABB RESEARCH LTD

Inventor： CLAESSENS MAX ,  KALTENEGGER KURT

IPC: H01H33/90 ,  H01H33/915