公开(公告)号：EP3944277A1

公开(公告)日：2022-01-26

申请号：EP19920488.4

申请日：2019-03-19

申请人： KABUSHIKI KAISHA TOSHIBA ,  Toshiba Energy Systems & Solutions Corporation

发明人： IMAZAWA, Yuko ,  YOSHINO, Tomoyuki ,  UCHII, Toshiyuki ,  ISHII, Takato ,  SHIMAMURA, Akira ,  HASEGAWA, Tomohiro

IPC分类号： H01H33/915

摘要： There is provided a gas circuit breaker that can appropriately ensure a pressure and a density of arc-extinguishing gas to be sprayed to an arc, and can more surely maintain electric insulation performance. A gas circuit breaker 1 includes a first arc contactor 21 electrically connected to a first lead-out conductor 7a, a cylindrical guide portion 41 provided on a second lead-out conductor 7b side, a trigger electrode 31 which is arranged to be movable between the first arc contactor 21 and the guide portion 41, and which ignites an arc generated between the first arc contactor 21 and the trigger electrode along with a movement in a first half of a current breaking action, a compression chamber 36 for pressurizing arc-extinguishing gas, the compression chamber being formed by a cylinder 42 which has an outer wall 51 and an inner wall 52 both formed in a cylindrical shape, and which is provided on the guide portion 41 side, and a piston 33 that slides between the outer wall 51 and the inner wall 52 in conjunction with the trigger electrode 31, and an insulation nozzle 23 which guides the arc-extinguishing gas pressurized in the compression chamber 36 to an arc ignited at the first arc contactor 21. The insulation nozzle 23 is formed integrally with the inner wall 52 of the cylinder 42.

公开(公告)号：EP3059753A1

公开(公告)日：2016-08-24

申请号：EP14854027.1

申请日：2014-10-14

申请人： Kabushiki Kaisha Toshiba

发明人： UCHII, Toshiyuki ,  IIJIMA, Takanori ,  ISHII, Takato ,  FURUTA, Hiroshi

IPC分类号： H01H33/915

CPC分类号： H01H33/91 ,  H01H33/12 ,  H01H33/56 ,  H01H33/7023 ,  H01H33/90 ,  H01H33/903 ,  H01H2033/888 ,  H01H2033/908

摘要： The gas circuit breaker includes a sealed container filled with an arc-extinguishing gas, a pair of fixed arc electrodes arranged in the sealed container to be opposite to each other, a trigger electrode movably arranged between the fixed arc electrodes and generating an arc discharge according to movement, a pressurization chamber pressuring and increasing a pressure of the arc-extinguishing gas with pressurization means, and a pressure accumulation chamber in communication with the pressurization chamber and accumulating the pressurized arc-extinguishing gas. The trigger electrode switches the pressure accumulation chamber into a closed state or an open state. The pressure accumulation chamber is switched to the closed state in a first half of breaking of the electric current, and the pressure accumulation chamber is switched to the open state in a latter half of breaking of the electric current. The arc-extinguishing gas in the pressure accumulation chamber is guided to the arc discharge.

摘要翻译： 该气体断路器包括充满灭弧气体的密封容器，设置在密封容器中彼此相对的一对固定电弧电极，触发电极可移动地布置在固定电弧电极之间并根据电弧放电产生电弧放电 加压室利用加压装置加压并增加消弧气体的压力;以及蓄压室，与加压室连通并蓄积加压消弧气体。 触发电极将蓄压室切换到关闭状态或打开状态。 在电流断开的前半部分中蓄压室被切换到关闭状态，并且在电流断开的后半部分中蓄压室被切换到打开状态。 蓄压室内的灭弧气体被引导至电弧放电。

公开(公告)号：EP3059753B1

公开(公告)日：2019-02-13

申请号：EP14854027.1

申请日：2014-10-14

申请人： Kabushiki Kaisha Toshiba

发明人： UCHII, Toshiyuki ,  IIJIMA, Takanori ,  ISHII, Takato ,  FURUTA, Hiroshi

IPC分类号： H01H33/915 ,  H01H33/12 ,  H01H33/70 ,  H01H33/90

公开(公告)号：EP3125265A1

公开(公告)日：2017-02-01

申请号：EP15769921.6

申请日：2015-02-19

申请人： Kabushiki Kaisha Toshiba

发明人： UCHII, Toshiyuki ,  IIJIMA, Takanori ,  KATO, Norimitsu ,  FURUTA, Hiroshi ,  ISHII, Takato ,  MORI, Tadashi

IPC分类号： H01H33/915

CPC分类号： H01H33/91 ,  H01H33/7023 ,  H01H2033/908

摘要： A reduction of the temperature of a blown gas, an improvement of a durability and a reduction of a maintenance frequency, a reduction of a current cutoff time, a reduction of drive and actuation energy, and a stabilization of a gas flow are accomplished. A pair of stationary arc electrodes 35a, 35b is disposed in a sealed container filled with an arc-extinguishing gas 1 to face with each other. A trigger electrode 34 in a rod shape with a smaller diameter is disposed between the stationary arc electrodes 35a, 35b so as to be freely movable. An insulation nozzle 81 is disposed so as to surround the trigger electrode 34. An accumulating chamber 42 to reserve the arc-extinguishing gas 1 having undergone pressure increase is provided, and a switch causing the accumulating chamber 42 to be in a closed state or a released state is provided. The switch includes gaps between the arc electrode 35b and the trigger electrode 34, and between the insulation nozzle 81 and the trigger electrode 34, and by closing the gaps by the moved trigger electrode 34, a closing component 45 is formed.

摘要翻译： 实现吹气的温度降低，耐久性的提高和维护频率的降低，电流截止时间的减少，驱动和致动能的降低以及气流的稳定化。 一对固定电弧电极35a，35b设置在填充有灭弧气体1的密封容器中，以彼此面对。 具有较小直径的杆状触发电极34设置在固定电弧电极35a，35b之间，以便可自由移动。 设置绝缘喷嘴81以围绕触发电极34.设置有用于保留经历增压的灭弧气体1的蓄积室42和使累积室42处于关闭状态的开关或 提供释放状态。 开关包括电弧电极35b和触发电极34之间以及绝缘喷嘴81和触发电极34之间的间隙，并且通过由移动的触发电极34闭合间隙，形成闭合部件45。