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1. 发明授权

US4805062A DC circuit breaker and method of commutation thereof 失效
标题翻译：直流断路器及其换向方法
公开(公告)号：US4805062A
公开(公告)日：1989-02-14
申请号：US108009
申请日：1987-10-14
申请人： Tatsuji Shirouzu , Masatoshi Morita , Satoshi Mizuno
发明人： Tatsuji Shirouzu , Masatoshi Morita , Satoshi Mizuno
IPC分类号： H01H33/59 , H02H3/00 , H01H9/30
CPC分类号： H01H33/596
摘要： A DC circuit breaker and a method of commutation during a commutation capacitor capable of being directly charged from a main DC line are disclosed. A breaker unit is inserted in a main DC line and is connected through a first switch in parallel to a series circuit including a commutation capacitor and a reactor. At end of the commutation capacitor is connected to the power side of the main DC line, and the other end thereof to the negative bus of the DC line through a charge capacitor. A series circuit including a magnetic repulsive coil and a second switch is connected in parallel to the commutation capacitor, which is directly charged from the power side of the main DC line. When the breaker unit starts to open, the second switch is turned on so that the polarity of the charged commutation capacitor is reversed to permit a discharged current to flow in the breaker unit in the opposite direction, while at the same time starting the opening of the breaker unit.
摘要翻译：公开了一种直流断路器以及可以从主DC线直接充电的换向电容器期间的换向方法。断路器单元插入主DC线路中，并且通过与包括换向电容器和电抗器的串联电路并联的第一开关连接。在整流结束时，电容器通过充电电容器连接到主DC线的电源侧，另一端连接到DC线的负母线。包括磁性排斥线圈和第二开关的串联电路并联连接到从主DC线的电源侧直接充电的换向电容器。当断路器单元开始打开时，第二开关导通，使得充电的换向电容器的极性反转，以允许放电电流在相反方向上流过断路器单元，同时开始打开断路器单元。

2. 发明授权

US5115389A DC power supply circuit arrangement 失效
标题翻译：直流电源电路布置
公开(公告)号：US5115389A
公开(公告)日：1992-05-19
申请号：US577024
申请日：1990-09-04
申请人： Shigetoshi Ouchi , Tatsuji Shirouzu , Shinichi Ode , Takasi Ichinose , Tutomu Kanno
发明人： Shigetoshi Ouchi , Tatsuji Shirouzu , Shinichi Ode , Takasi Ichinose , Tutomu Kanno
IPC分类号： B60M3/06 , H01H33/59 , H02J1/00
CPC分类号： H01H33/596
摘要： A DC power supply circuit arrangement for supplying DC power from a power source through a common conductor to a load, comprises a plurality of switches connected between the power source and the common conductor and/or between the common conductor and the load, each of the switches having one terminal connected to the power or the load and the other terminal connected to the common conductor, an energy absorber having two terminals, a first diode connected between the one terminal of each of the plurality of switches and one of the two terminals of the energy absorber in a polarity so as to allow a current to flow from the one terminal of the switch to the one terminal of the energy absorber, a second diode connected between the one terminal of each of the plurality of switches and the other terminal of the energy absorber in a polarity so as to allow a current to flow from the other terminal of the energy absorber to the one terminal of the switch, and a circuit connecting the other terminal of the energy absorber to the common conductor.

3. 发明授权

US4862313A Driving apparatus for DC circuit breakers 失效
标题翻译：直流断路器驱动装置
公开(公告)号：US4862313A
公开(公告)日：1989-08-29
申请号：US281211
申请日：1988-12-08
申请人： Tatsuji Shirouzu , Tatsuo Takahashi , Motoo Sato , Satoshi Mizuno
发明人： Tatsuji Shirouzu , Tatsuo Takahashi , Motoo Sato , Satoshi Mizuno
IPC分类号： H01H33/28 , H01H33/59
CPC分类号： H01H33/596 , H01H33/285
摘要： A driving apparatus for a DC circuit breaker of reverse current insertion type. The driving apparatus includes a magnetic repulsive coil for instantaneously driving a movable electrode of a vacuum valve directly in an opening direction, and a first coil of capacitor energization type and a second coil for voltage tripping purposes as trip coils for an operating mechanism connected to the movable electrode through a contact spring whereby the magnetic repulsive coil and the first trip coil are respectively energized by capacitors in the case of tripping under faulty conditions and only the second trip coil is energized in the case of tripping under other conditions than faulty conditions. By thus providing the high-speed tripping first coil for the tripping under faulty conditions and the low-speed tripping second coil for the tripping under other conditions than faulty conditions separately to be independent of each other, a mechanical trip-free mechanism is provided thus minimizing the opening stroke due to the magnetic repulsive coil, increasing the life of the vacuum valve and the operating mechanism and enhancing the reliability of the driving apparatus.
摘要翻译：一种反向电流插入式直流断路器的驱动装置。该驱动装置包括用于直接在打开方向上驱动真空阀的可动电极的磁性排斥线圈，以及用于电压跳闸目的的电容器通电型的第一线圈和用于操作机构的跳闸线圈的连接到可动电极通过接触弹簧，由此在故障条件下跳闸的情况下，磁性排斥线圈和第一跳闸线圈分别由电容器通电，并且在其它条件下跳闸的情况下，只有第二跳闸线圈通电。通过在故障条件下提供高速跳闸第一线圈和用于在除了彼此独立的故障条件之外的其他条件下的跳闸的低速跳闸第二线圈，因此提供机械无跳闸机构最小化由于排斥线圈引起的打开行程，从而增加了真空阀和操作机构的使用寿命并提高了驱动装置的可靠性。

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