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1. 发明申请

US20210217568A1 GAS CIRCUIT BREAKER 有权
公开(公告)号：US20210217568A1
公开(公告)日：2021-07-15
申请号：US16768734
申请日：2017-12-01
申请人： KABUSHIKI KAISHA TOSHIBA , Toshiba Energy Systems & Solutions Corporation
发明人： Toshiyuki UCHII , Tomoyuki YOSHINO , Takato ISHII , Akira SHIMAMURA , Tsutomu TANAKA
IPC分类号： H01H33/70 , H01H33/42
摘要： There is provided a gas circuit breaker that can suppress the mechanical vibration during movement of the moving electrode, reduce the generation of a triple junction during operation of the gas circuit breaker and the generation of the metal foreign materials, and maintain the electrical insulation performance more reliably. A first arc contactor 21, a cylindrical second arc contactor 31, a bar-shaped trigger electrode 31 arranged to be movable between a first arc contactor 21 and a second arc contactor 41, and moving in the cylindrical second arc contactor 41 during the latter half of the current breaking action to ignite the arc to the second arc contactor 41, and a guide portion 41b having an inner diameter larger than an outer diameter of the trigger electrode 31, and the inner diameter smaller than an inner diameter of a portion of the second arc contactor which is close to the trigger electrode 31, and arranged in a cylinder of the second arc contactor 41 so as to circulate around the trigger electrode 31 when the trigger electrode 31 is in the closed state with the first arc contactor 21, are included.

2. 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.

3. 发明申请

US20220319787A1 GAS CIRCUIT BREAKER 有权
公开(公告)号：US20220319787A1
公开(公告)日：2022-10-06
申请号：US17425934
申请日：2019-03-19
申请人： Kabushiki Kaisha Toshiba , Toshiba Energy Systems & Solutions Corporation
发明人： Yuko IMAZAWA , Tomoyuki YOSHINO , Toshiyuki UCHII , Takato ISHII , Akira SHIMAMURA , Tomohiro HASEGAWA
IPC分类号： H01H33/91 , H01H33/70
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.

4. 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.

5. 发明申请

US20210350990A1 GAS CIRCUIT BREAKER 有权
公开(公告)号：US20210350990A1
公开(公告)日：2021-11-11
申请号：US17288875
申请日：2018-10-26
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
发明人： Toshiyuki UCHII , Takato ISHII , Akira SHIMAMURA , Tomohiro HASEGAWA , Tomoyuki YOSHINO , Yuko IMAZAWA
IPC分类号： H01H33/70 , H01H33/88 , H05K9/00
摘要： There is provided a gas circuit breaker that can reduce deformation of an insulation nozzle and leakage of arc-extinguishing gas compressed to be sprayed to an arc, and can more surely maintain electric insulation performance. A gas circuit breaker 1 includes a trigger electrode 31 which is arranged to be movable between a first arc contactor 21 and a second arc contactor 41, 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, and which ignites the arc on the second arc contactor 41 along with the movement in a latter half of the current breaking action, a compression chamber 36 for pressurizing arc-extinguishing gas, the compression chamber 36 being formed by a cylinder 42 which has an outer wall 51 and an inner wall 52, each being formed in a cylindrical shape, and which is provided to the second arc contactor 41, 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 that guides the arc-extinguishing gas pressurized in the compression chamber 36 to an arc ignited between the first arc contactor 21 and the second arc contactor 41. The insulation nozzle 23 is supported by the inner wall 52 of the cylinder 42.

6. 发明申请

US20140247538A1 GAS INSULATED ELECTRICAL EQUIPMENT 有权
标题翻译：气体绝缘电气设备
公开(公告)号：US20140247538A1
公开(公告)日：2014-09-04
申请号：US14276677
申请日：2014-05-13
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Toshiyuki UCHII , Akira SHIMAMURA , Amane MAJIMA
IPC分类号： H05K5/06
CPC分类号： H05K5/06 , H01H33/56 , H01H2033/566 , H01H2033/568 , H02B5/00 , H02B13/025
摘要： According to an embodiment, a gas insulated electrical equipment includes: a high-voltage conductor to be electrically charged; a hermetically sealed tank to be filled with insulating gas, one or more insulating spacers for dividing the hermetically sealed tank into gas compartments and supporting the high-voltage conductor; and a pressure release device equipped with a mouth of flow channel adapted to allow the inside and the outside of the hermetically sealed tank to communicate with each other so as to release the pressure in the hermetically sealed tank, which maintains the hermetically sealed state in an ordinary condition where the pressure in a gas compartment does not exceed the working pressure but releases the pressure in the hermetically sealed tank in an abnormal condition where the pressure in the gas compartment exceeds the working pressure.
摘要翻译：根据实施例，气体绝缘电气设备包括：要充电的高压导体; 绝缘气体的气密密封罐，一个或多个用于将密封的罐分成气体隔室并支撑高压导体的绝缘垫片; 以及配备有适于允许密封容器的内部和外部彼此连通的流动通道的压力释放装置，以释放密封的罐中的压力，其将气密密封状态保持在在气体隔室中的压力超过工作压力但是在气体隔室中的压力超过工作压力的异常状态下释放密封容器中的压力的常规状态。

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