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1. 发明授权

US10032582B2 Gas circuit breaker 有权
公开(公告)号：US10032582B2
公开(公告)日：2018-07-24
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 , H01H33/88 , H01H33/70 , H01H33/90 , H01H9/34 , H01H33/12
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.

2. 发明授权

US09502189B2 Excitation inrush-current suppression system 有权
标题翻译：励磁涌流抑制系统
公开(公告)号：US09502189B2
公开(公告)日：2016-11-22
申请号：US14105846
申请日：2013-12-13
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Shiro Maruyama , Minoru Saito , Tadashi Koshizuka , Tomohiko Mitani
IPC分类号： H01H9/56 , H02H9/00
CPC分类号： H01H9/563 , H02H9/002
摘要： According to an embodiment, when a transformer that is connected to a first power supply through a first breaker as well as to a second power supply through a second breaker is detected to be disconnected from the power supplies, a specific phase of the three phases of the first breaker is closed to suppress an excitation inrush current, based on calculated residual magnetic fluxes and a voltage of the first power supply, and thereafter, the remaining two phases are closed. Based on the calculated residual magnetic fluxes and a voltage of the second power supply, a specific phase of the three phases of the second breaker is closed to suppress an excitation inrush current, and thereafter, the remaining two phases are closed.
摘要翻译：根据实施例，当检测到通过第一断路器连接到第一电源以及通过第二断路器连接到第二电源的变压器与电源断开时，三相的特定阶段关闭第一断路器以基于所计算的剩余磁通量和第一电源的电压来抑制励磁浪涌电流，此后，其余两相闭合。基于所计算出的剩余磁通量和第二电源的电压，关闭第二断路器的三相的特定相以抑制励磁浪涌电流，之后，剩下的两相闭合。

3. 发明授权

US09197057B2 Magnetizing inrush current suppression apparatus 有权
标题翻译：励磁涌流抑制装置
公开(公告)号：US09197057B2
公开(公告)日：2015-11-24
申请号：US13773372
申请日：2013-02-21
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Keisuke Udagawa , Tadashi Koshizuka , Shiro Maruyama , Minoru Saitoh , Noriyuki Nagayama
IPC分类号： H02H7/04 , H01H9/56 , H01H33/59 , H02H9/00 , G11C13/02
CPC分类号： H01H9/563 , H01H33/593 , H02H9/002
摘要： According to one embodiment, there is provided a magnetizing inrush current suppression apparatus including an interrupting phase detection unit that detects a phase when the transformer that converts a three-phase alternating-current voltage to a single-phase alternating-current voltage is disconnected, a single-phase alternating-current voltage measurement unit that measures the single-phase alternating-current voltage on the power system side of the circuit breaker, and a closing unit that closes the circuit breaker in the detected phase, based on the measured single-phase alternating-current voltage.
摘要翻译：根据一个实施例，提供了一种励磁涌流抑制装置，其包括中断相位检测单元，其在将三相交流电压转换为单相交流电压的变压器断开时检测相位，单相交流电压测量单元，其测量断路器的电力系统侧上的单相交流电压;以及闭合单元，其基于所测量的单相闭合断路器交流电压。

4. 发明授权

US09659727B2 Switch 有权
公开(公告)号：US09659727B2
公开(公告)日：2017-05-23
申请号：US14914496
申请日：2014-07-09
申请人： Kabushiki Kaisha Toshiba
发明人： Kazuhisa Kanaya , Yoshiaki Ohda , Tadashi Koshizuka , Masayuki Sato , Yuki Matsui
IPC分类号： H01H33/666 , H01H33/04 , H01H33/38 , H01H33/14 , H01H51/22 , H01H33/28
CPC分类号： H01H33/04 , H01H33/143 , H01H33/285 , H01H33/38 , H01H33/666 , H01H33/6661 , H01H51/2209
摘要： A switch capable of easily accomplishing current cutoff roles required for a high-voltage switch, and which has a short breaking time. The switch includes pressure housings filled with an insulative medium, a plurality of contactors each including a contact, a plurality of operation units actuating the contacts, an insulative spacer dividing the interiors of the pressure housings into the same number of internal spaces as the number of contacts, and an electrode passing completely through the insulative spacer and fastened to the insulative spacer. The contactor is provided one by one for each internal space, and all contacts are electrically connected in series via the electrode, and the operation units actuate the corresponding contacts, respectively.

5. 发明授权

US09385525B2 Magnetizing inrush current suppression device 有权
标题翻译：励磁浪涌电流抑制装置
公开(公告)号：US09385525B2
公开(公告)日：2016-07-05
申请号：US14205090
申请日：2014-03-11
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Tadashi Koshizuka , Minoru Saito , Shiro Maruyama , Hiroyuki Maehara , Koji Suzuki
IPC分类号： H02H7/04 , H02H9/00 , H01H9/56 , H02H7/045 , H02H3/08 , H02H9/04 , H02H3/44
CPC分类号： H02H9/002 , H01H9/563 , H02H3/08 , H02H3/44 , H02H7/04 , H02H7/042 , H02H7/045 , H02H9/04
摘要： According to one embodiment, there is provided a magnetizing inrush current suppression device. A closing phase determination unit determines a phase position for suppressing the magnetizing inrush current among phase positions in which the prospective magnetic flux calculated by the prospective magnetic flux calculation unit and the residual magnetic flux calculated by the residual magnetic flux calculation unit coincide between the lines of the minimum residual magnetic flux determined by the minimum residual magnetic flux determination unit, as a closing phase position. A closing unit simultaneously closes the three phases of the circuit-breaker at the determined closing phase position.
摘要翻译：根据一个实施例，提供了一种励磁涌流抑制装置。关闭相位确定单元确定用于抑制由预期磁通计算单元计算出的预期磁通量和由剩余磁通计算单元计算出的剩余磁通量的相位位置之间的磁化冲击电流的相位位置，由最小剩余磁通量确定单元确定的最小剩余磁通量作为闭合相位置。闭合单元同时在确定的闭合相位置处闭合断路器的三相。

6. 发明申请

US20160099123A1 SWITCHGEAR OPERATING MECHANISM 有权
标题翻译：开关操作机构
公开(公告)号：US20160099123A1
公开(公告)日：2016-04-07
申请号：US14968128
申请日：2015-12-14
申请人： Kabushiki Kaisha Toshiba
发明人： Yoshiaki Ohda , Tadashi Koshizuka , Kazuhisa Kanaya , Masayuki Ando
IPC分类号： H01H50/30 , H01H50/74 , H01H50/36 , H01F7/08 , H01H50/32
CPC分类号： H01H50/305 , H01F7/08 , H01F7/122 , H01H3/60 , H01H33/285 , H01H33/38 , H01H33/666 , H01H50/32 , H01H50/36 , H01H50/74
摘要： An electromagnetic rebound mechanism unit and a magnetic latch unit are fixedly installed between a switchgear and a spring drive unit by virtue of a rebound fixing member and a fixing yoke. The electromagnetic rebound mechanism unit includes a rebound coil fixedly secured to the rebound fixing member, a reinforcing plate fixedly secured to a movable shaft and a rebound ring fixedly secured to the reinforcing plate. The magnetic latch unit includes a permanent magnet fixedly secured to the rebound fixing member, a latch ring fixedly secured to the permanent magnet and a movable yoke fixedly secured to the movable shaft. The spring drive unit includes a support frame, a spring retaining plate, a circuit-opening spring, a damper unit, and first and second electromagnetic solenoids.
摘要翻译：电磁回弹机构单元和磁性闩锁单元通过反弹固定构件和固定轭固定地安装在开关装置和弹簧驱动单元之间。电磁回弹机构单元包括固定在回弹固定部件上的回弹线圈，固定在可动轴上的加强板和固定在加强板上的回弹环。磁性闩锁单元包括固定在回弹固定构件上的永磁体，固定在永久磁铁上的锁环和固定在可动轴上的可动轭。弹簧驱动单元包括支撑框架，弹簧保持板，回路开启弹簧，阻尼单元以及第一和第二电磁螺线管。

7. 发明授权

US09704664B2 Magnetizing inrush current suppression device 有权
公开(公告)号：US09704664B2
公开(公告)日：2017-07-11
申请号：US14527230
申请日：2014-10-29
申请人： Kabushiki Kaisha Toshiba
发明人： Tadashi Koshizuka , Shiro Maruyama , Minoru Saito , Hiroyuki Maehara , Koji Suzuki
IPC分类号： H01H9/54 , H02H3/08 , H01H9/56 , H01H33/59 , H02H7/045 , H02H9/00
CPC分类号： H01H9/54 , H01H9/563 , H01H33/593 , H02H3/083 , H02H7/0455 , H02H9/002
摘要： According to one embodiment, a magnetizing inrush current suppressing device is configured to measure a three-phase alternating current flowing from the power supply bus to the load, detect a first interruption phase as a phase of an electric current which is interrupted first among the three phases, detect a phase of a phase voltage zero point through which a phase voltage of the first interruption phase of the three-phase AC voltage passes when changing from the same polarity as that of an electric current immediately before interruption of the first interruption phase to an opposite polarity, and close the circuit-breaker at a phase within 60° from the detected phase.

8. 发明授权

US09583934B2 Excitation inrush current suppression device 有权
标题翻译：励磁浪涌电流抑制装置
公开(公告)号：US09583934B2
公开(公告)日：2017-02-28
申请号：US14164122
申请日：2014-01-24
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kei Kawasaki , Tadashi Koshizuka , Shiro Maruyama , Minoru Saito , Noriyuki Nagayama
IPC分类号： H02H3/26 , H02H9/00
CPC分类号： H02H3/265 , H02H9/002
摘要： According to one embodiment, an excitation inrush current suppression device for suppressing excitation inrush currents flowing through a breaker of the three-phase collective operation type for opening and closing connection is configured to measure a three-phase AC voltage of the power supply bus bar to calculate prospective magnetic fluxes of the transformer, and to measure a three-phase AC voltage on the transformer side to calculate residual magnetic fluxes of the transformer after shutoff, so as to set the breaker closed when polarities of the prospective magnetic fluxes respectively agree with polarities of the residual magnetic fluxes in all of the phases respectively.
摘要翻译：根据一个实施例，用于抑制流过用于打开和关闭连接的三相集合操作类型的断路器的励磁涌流的励磁涌流抑制装置被配置为测量电源母线的三相交流电压，计算变压器的预期磁通量，并测量变压器侧的三相交流电压，以计算关闭后变压器的剩余磁通量，以便在预期磁通量的极性分别与极性相符时将断路器闭合的所有相的剩余磁通量。

9. 发明申请

US20150206683A1 SWITCHGEAR 审中-公开
公开(公告)号：US20150206683A1
公开(公告)日：2015-07-23
申请号：US14675134
申请日：2015-03-31
申请人： Kabushiki Kaisha Toshiba
发明人： Yoshiaki Ohda , Tadashi Koshizuka , Masayuki Sato , Kasuhisa Kanaya , Yuki Matsui
IPC分类号： H01H50/60 , H01H33/66 , H01H47/22 , H01H50/64
CPC分类号： H01H50/60 , H01H33/122 , H01H33/42 , H01H33/66 , H01H33/666 , H01H33/6661 , H01H33/6662 , H01H47/22 , H01H50/641 , H01H2205/002
摘要： Provided is a switchgear which is capable of easily accomplishing an interruption task required in a high-voltage-purpose switchgear and which is short in the interruption time. The switchgear includes a pressure container 1 and 2 filled with an insulating medium, a plurality of contact point units 7 and 9, an insulation spacer 3 configured to divide the inside of the pressure containers 1 and 2 into the same number of internal spaces 101 and 102 as the number of the contact point units, and a spacer electrode 6 extending through the insulation spacer 3 and fixed to the insulation spacer 3. The contact point units 7 and 9 include contact points and an operating unit 29 for operating the contact points. The contact point units 7 and 9 are installed in the internal spaces 101 and 102, one in each space.
摘要翻译：提供一种开关装置，其能够容易地实现高电压用开关装置中所需的中断任务，并且在中断时间短。开关装置包括填充有绝缘介质的压力容器1和2，多个接触点单元7和9，隔离隔离件3，其构造成将压力容器1和2的内部分成相同数量的内部空间101和 102，作为接触点单元的数量，以及间隔电极6，其延伸穿过绝缘隔离物3并固定到绝缘隔离物3.接触点单元7和9包括接触点和用于操作接触点的操作单元29。接触点单元7和9安装在每个空间中的内部空间101和102中。

10. 发明授权

US10074971B2 Excitation inrush current suppressing apparatus and excitation inrush current suppressing method 有权
公开(公告)号：US10074971B2
公开(公告)日：2018-09-11
申请号：US14594702
申请日：2015-01-12
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kei Kawasaki , Tadashi Koshizuka , Shiro Maruyama , Minoru Saito , Noriyuki Nagayama
IPC分类号： H02H9/00 , H01H33/59 , H01H9/56 , H01F27/34
CPC分类号： H02H9/002 , H01F27/34 , H01H9/56 , H01H9/563 , H01H33/593
摘要： According to one embodiment, an excitation inrush current suppressing apparatus comprising: bus voltage measurement equipment which measures each phase voltage of the single-phase AC-side bus; transformer voltage measurement equipment which measures a single-phase-side voltage of the transformer; phase detector which detects a cutoff phase when opening the circuit breaker by monitoring each phase voltage measured by the bus voltage measurement equipment and the single-phase-side voltage measured by the transformer voltage measurement equipment, holds the detected cutoff phase, and outputs the same phase as the held cutoff phase; and close command output device which closes the circuit breaker by the same voltage phase as the cutoff phase output from the phase detector.

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