公开(公告)号：JP2008135392A

公开(公告)日：2008-06-12

申请号：JP2007303938

申请日：2007-11-26

Applicant: Abb Technology Ag ,  アーベーベー・テヒノロギー・アーゲー

Inventor： HEIERMEIER HELMUT ,  KAMMERL KURT ,  KEHR TIMO ,  FRISK JOHAN

IPC: H01H33/915

CPC classification number: H01H33/901 ,  H01H33/82 ,  H01H33/86 ,  H01H2033/908

Abstract: PROBLEM TO BE SOLVED: To enable to increase switching speed and/or reduce energy of required driving operation.
SOLUTION: A circuit breaker comprises a puffer volume 9 and at least one filling valve 16 structured to allow a flow of gas into the puffer volume 9 upon expansion of the same. A closing member 18 is biased in a direction against the flow of gas emitting from the puffer volume 9 such that the filling valve 16 remains open while the pressure accumulated within the puffer volume 9 remains below a given threshold. This allows to keep the pressure in the puffer volume 9 low under low current switching conditions, thereby decreasing the tendency for supersonic flow in the insulating nozzle.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：能够提高开关速度和/或降低所需驾驶操作的能量。 解决方案：断路器包括吹气容积9和至少一个填充阀16，其被构造成允许气体在其膨胀时进入吹气容积9。 关闭构件18被偏置在抵抗从吹气容积9发射的气体流动的方向上，使得填充阀16保持打开，同时积聚在吹气容积9内的压力保持在给定阈值以下。 这允许在低电流切换条件下将吹气体积9中的压力保持在低电平，从而降低绝缘喷嘴中超音速流动的趋势。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：AT523889T

公开(公告)日：2011-09-15

申请号：AT06405498

申请日：2006-11-27

Applicant: ABB TECHNOLOGY AG

Inventor： HEIERMEIER HELMUT ,  KAMMERL KURT ,  KEHR TIMO ,  FRISK JOHAN

IPC: H01H33/90

Abstract: A circuit breaker comprises a puffer volume (9) and at least one filling valve (16) adapted to allow a flow of gas into the puffer volume (9) upon expansion of the same. The closing member (18) is biased in a direction against the flow of gas exiting from the puffer volume (9) such that the filling valve (16) remains open while the pressure build-up within the puffer volume (9) remains below a given threshold. This allows to keep the pressure in the puffer volume (9) low under low current switching conditions, thereby decreasing the tendency for supersonic flow in the insulating nozzle. It also allows to increase the switching speed and/or to decrease the required drive operating energy.