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1. 发明申请

US20200273647A1 GAS CIRCUIT BREAKER 审中-公开
公开(公告)号：US20200273647A1
公开(公告)日：2020-08-27
申请号：US16762573
申请日：2017-11-10
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
发明人： Toshiyuki UCHII , Takanori IIJIMA , Tomoyuki YOSHINO , Norimitsu KATO , Tsutomu TANAKA
IPC分类号： H01H33/91 , H01H33/12 , H01H33/70 , H01H33/90
摘要： There is provided a gas circuit breaker that can spray arc-extinguishing gas to arcs while preventing a spraying velocity from being reduced and can efficiently and more surely extinguish the arcs that have been generated in a scatteredly around electrodes. A gas circuit breaker 1 includes an insulation nozzle 23 that guides arc-extinguishing gas to an arc between the first arc contactor 21 and a second arc contactor 41 when a trigger electrode 31 becomes an opened state relative to a first arc contactor 21. A second arc contactor 41 has an opening 41a for spraying the arc-extinguishing gas, and the opening 41a is closed by the trigger electrode 31 in the first half of a current breaking action, and is opened by separation of the trigger electrode in the latter half of the current breaking action. An opening area of a first exhaust port 41b formed between the second arc contactor 41 and the insulation nozzle 23 for exhausting the arc-extinguishing gas is 0.2 times or more and two times or less of an opening area of the opening 41a of the second arc contactor.

2. 发明申请

US20220319785A1 GAS CIRCUIT BREAKER 有权
公开(公告)号：US20220319785A1
公开(公告)日：2022-10-06
申请号：US17310214
申请日：2019-04-02
申请人： Kabushiki Kaisha Toshiba , Toshiba Energy Systems & Solutions Corporation
发明人： Takanori IIJIMA , Amane MAJIMA , Toshiyuki UCHII , Akira SHIMAMURA , Norimitsu KATO
IPC分类号： H01H33/56 , H01H33/57
摘要： There is a gas circuit breaker that can reduce deterioration in insulation performance and current breaking performance due to unnecessary gas generated from arc-extinguishing gas sprayed to an arc. The gas circuit breaker includes a sealed container 8 in which the arc-extinguishing gas is enclosed, a first fixed contactor portion 2 fixed to the sealed container 8, a second fixed contactor portion 4 fixed to the sealed container 8, and a movable contactor portion 3 which moves between the first fixed contactor portion 2 and the second fixed contactor portion 4, to conduct and break current between the first fixed contactor portion 2 and the second fixed contactor portion 4, in which an arc generated between a fixed arc contactor 21 provided to the first fixed contactor portion 2 and a movable arc contactor 31 provided to the movable contactor portion 3 at a time of current breaking action is extinguished by spraying the arc-extinguishing gas, the gas circuit breaker includes a gas chamber 5 configured to accumulate the unnecessary gas generated from the arc-extinguishing gas sprayed to the arc, the sealed container 8 is formed by joining ends of the two hollow truncated cone portions 82 and 83, each having a large opening diameter, with the cylindrical portion 82 therebetween, and the gas chamber 5 is formed inside the cylindrical portion 81 forming the sealed container 8.

3. 发明申请

US20220166198A1 GAS INSULATION APPARATUS 有权
公开(公告)号：US20220166198A1
公开(公告)日：2022-05-26
申请号：US17650305
申请日：2022-02-08
申请人： KABUSHIKI KAISHA TOSHIBA , Toshiba Energy Systems & Solutions Corporation
发明人： Tomohiro HASEGAWA , Tooru INOUE , Norimitsu KATO , Amane MAJIMA , Toshiyuki UCHII
IPC分类号： H02B13/055
摘要： A gas insulation apparatus has a sealed container, an insulation gas, a high-voltage portion, and a removal material. The insulation gas has CO2 and O2 filling the sealed container as main components. The high-voltage portion is stored in the sealed container. The removal material reduces concentrations of HF, CO, and O3 in the insulation gas.

4. 发明申请

US20210175030A1 GAS CIRCUIT BREAKER 有权
公开(公告)号：US20210175030A1
公开(公告)日：2021-06-10
申请号：US16768648
申请日：2017-12-01
申请人： KABUSHIKI KAISHA TOSHIBA , Toshiba Energy Systems & Solutions Corporation
发明人： Takanori IIJIMA , Toshiyuki UCHII , Amane MAJIMA , Norimitsu KATO , Akira SHIMAMURA
IPC分类号： H01H33/56 , H01H33/91
摘要： A gas circuit breaker that can reduce deterioration of insulation performance thereof and current breaking performance thereof by the unnecessary gas generated from the arc-extinguishing gas sprayed to the arc is provided. The gas circuit breaker includes a sealed container (8) which arc-extinguishing gas is filled therein, a first fixed contactor (2) which is fixed to the sealed container (8), a second fixed contactor portion (4) which is fixed to the sealed container (8), and a movable contactor portion (3) which moves between the first contactor portion (2) and the second contactor portion (4), and which conducts and breaks current between the first contactor portion (2) and the second contactor portion (4), in which an arc generated between a fixed arc contactor (21) provided to the first fixed contactor portion (2) and a movable arc contactor (31) provided to the movable contactor portion (3) at a time of current breaking action is extinguished by an arc-extinguishing gas being sprayed thereto, and the gas circuit breaker (1) includes a gas chamber (5) to accumulate an unnecessary gas generated from the arc-extinguishing gas sprayed to the arc.

5. 发明申请

US20150194280A1 GAS CIRCUIT BREAKER 审中-公开
标题翻译：气体断路器
公开(公告)号：US20150194280A1
公开(公告)日：2015-07-09
申请号：US14665364
申请日：2015-03-23
申请人： Kabushiki Kaisha Toshiba
发明人： Toshiyuki UCHII , Takeshi SHINKAI , Takanori IIJIMA , Tadashi MORI , Tadashi KOSHIZUKA , Norimitsu KATO , Hiroshi FURUTA
IPC分类号： H01H33/91 , H01H33/12 , H01H9/34
CPC分类号： H01H33/91 , H01H9/342 , H01H33/12 , H01H33/7023 , H01H33/88 , H01H33/903 , H01H2033/888 , H01H2033/906
摘要： A pair of fixed arc electrodes are arranged facing each other within a sealed container that is filled with arc-extinguishing gas 1. There are provided: a compression puffer chamber for accumulating pressurized gas that is obtained by elevating the pressure of the arc-extinguishing gas; and an insulated nozzle that directs the pressurized gas towards the arc discharge from the compression puffer chamber. A buffer chamber is provided, in which hot exhaust gas generated by the heat of the arc discharge is temporarily accumulated. A pressurized gas through-flow space is provided, communicating with the compression puffer chamber. In the pressurized gas through-flow space, an opening/closing section prevents inflow of hot exhaust gas by assuming a closed condition during the earlier half of the current interruption period, and in the latter half of the current interruption period the opening/closing section 41 is opened to allow flow of pressurized gas.
摘要翻译：一对固定电弧电极在填充有灭弧气体1的密封容器内彼此相对布置。设置有：用于积聚通过提高灭弧气体的压力而获得的加压气体的压缩空气室 ; 以及将加压气体从压缩吹气室引导到电弧放电的绝缘喷嘴。提供了缓冲室，其中由电弧放电的热量产生的热废气暂时积聚。提供加压气体通流空间，与压缩气流室连通。在加压气体通流空间中，开/关部通过在当前中断期间的前一半期间假设关闭状态来防止热废气的流入，在当前中断期间的后半期，开闭部 41打开以允许加压气体流动。

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