公开(公告)号：US5399973A

公开(公告)日：1995-03-21

申请号：US38200

申请日：1993-03-26

申请人： Tadao Kitamura ,  Toshio Kobayashi ,  Yukio Osawa ,  Noboru Usui ,  Mamoru Yamada

发明人： Tadao Kitamura ,  Toshio Kobayashi ,  Yukio Osawa ,  Noboru Usui ,  Mamoru Yamada

IPC分类号： H01H33/66 ,  G01R31/327 ,  H01H33/668 ,  G01R31/02 ,  H01H33/26

CPC分类号： H01H33/668 ,  G01R31/3275

摘要： An improved vacuum valve including an insulating container and an arc shield held in the insulating container, wherein a protrusion is formed on either the outer cylindrical surface of the arc shield or on the inner surface of the container. A detecting electrode is set confronted with the outer surface of the insulating container with an air gap therebetween, and is grounded through a current sensor. The current sensor detects a discharge current which is induced through the protrusion when the degree of vacuum of the vacuum valve is reduced, to output a detection signal. In response to the detection signal, a signal processing unit outputs an alarm signal indicating the reduction in the degree of vacuum of the vacuum valve. Thus, while the vacuum valve is in operation, its vacuum reduction can be positively detected with the vacuum valve maintained unchanged in reliability.

摘要翻译： 一种改进的真空阀，包括保持在绝缘容器中的绝缘容器和电弧屏蔽，其中在电弧屏蔽的外圆柱形表面或容器的内表面上形成突起。 检测电极与绝缘容器的外表面相对设置，其间具有气隙，并且通过电流传感器接地。 当真空阀的真空度降低时，电流传感器检测通过突起引起的放电电流，以输出检测信号。 响应于检测信号，信号处理单元输出表示真空阀的真空度的降低的报警信号。 因此，当真空阀正在运行时，真空阀的真空度可以保持在可靠性上保持不变。

公开(公告)号：US5191180A

公开(公告)日：1993-03-02

申请号：US728368

申请日：1991-07-11

申请人： Tadao Kitamura ,  Toshio Kobayashi ,  Yosikata Matsumura

发明人： Tadao Kitamura ,  Toshio Kobayashi ,  Yosikata Matsumura

IPC分类号： H01H33/66 ,  H01H33/56 ,  H01H33/666

CPC分类号： H01H33/666 ,  H01H2033/6667 ,  H01H33/565

摘要： A gas-insulated switchgear in which a vacuum switch main contact assembly constituted by a fixed contact element and a movable contact element is enclosed in a vacuum tank. The vacuum switch has a movable terminal fixed at its one end to the movable contact element and is led out from the vacuum tank through a bellows. The vacuum switch is enclosed in a gas tank filled with an insulating gas having gas pressure not less than the atmospheric pressure. The main contact assembly of the vacuum switch is operated so as to perform electrical connection and disconnection functions, through a transmission mechanism, by a driver provided outside of the gas tank. A driving rod transmits an operating force of the driver to the movable terminal of the vacuum switch. The driving rod is led out from the gas tank through another bellows mounted to the gas tank.

摘要翻译： 将由固定接触元件和可动接触元件构成的真空开关主触点组件封入真空槽内的气体绝缘开关装置。 真空开关具有可动端子，其一端固定在可动接触元件上，并通过波纹管从真空槽引出。 真空开关被封闭在填充有不低于大气压的气体压力的绝缘气体的气罐中。 真空开关的主接触组件通过设置在气罐外部的驱动器通过传动机构进行电连接和断开功能。 驱动杆将驱动器的操作力传递到真空开关的可动端子。 驱动杆从气罐通过另一个安装在气罐的波纹管引出。

公开(公告)号：US6040528A

公开(公告)日：2000-03-21

申请号：US324396

申请日：1994-10-17

申请人： Tadao Kitamura ,  Hisaji Shinohara

发明人： Tadao Kitamura ,  Hisaji Shinohara

IPC分类号： H01B17/00 ,  H01B17/32 ,  H01B17/50 ,  H01B17/56

CPC分类号： H01B17/50 ,  H01B17/32

摘要： An electrically insulating supporting structure for a high voltage electric apparatus having a high voltage charging part and a ground potential part, the structure being adapted to be disposed between the high voltage charging part apparatus and the ground potential part. The structure includes an organic insulating structure formed in a predetermined shape, and an inorganic insulating layer formed on a surface of the organic insulating structure and an intermediate layer consisting essentially of an organic and an inorganic powder.

摘要翻译： 一种用于具有高电压充电部分和接地电位部分的高压电气设备的电绝缘支撑结构，该结构适于设置在高压充电部件和地电位部分之间。 该结构包括形成为预定形状的有机绝缘结构和形成在有机绝缘结构的表面上的无机绝缘层和基本上由有机和无机粉末组成的中间层。