公开(公告)号：US20150136739A1

公开(公告)日：2015-05-21

申请号：US14540557

申请日：2014-11-13

Applicant: Hitachi, Ltd.

Inventor： Hiroaki HASHIMOTO ,  Kenichi OKUBO ,  Go KOBAYASHI

IPC: H01H33/56

CPC classification number: H01H33/565 ,  H01H33/40

Abstract: The gas circuit breaker is made up of a fixed contact, a movable contact, a sealed tank having the fixed contact and the movable contact therein, an operating mechanism for driving the movable contact, and a mechanism unit for housing a link mechanism for connecting the operating mechanism with the movable contact . The operating mechanism is made up of an opening spring and a closing spring, cases for covering respective peripheries of those elastic bodies, a control mechanism for holding and freeing the driving force of the elastic body, and a link mechanism for conveying the driving force of the elastic body to the movable contact. The opening spring is laterally disposed in the axial direction between the link mechanism and the control mechanism. An integral flange is provided on an opening spring case and a closing spring case.

Abstract translation: 气体断路器由固定触点，可动触头，具有固定触点的密封容器和可动触头组成，用于驱动可动触头的操作机构，以及用于容纳连接机构的机构单元， 操作机构与动触头。 操作机构由打开弹簧和闭合弹簧构成，用于覆盖这些弹性体的周围的壳体，用于保持和释放弹性体的驱动力的控制机构，以及用于传递弹性体的驱动力的连杆机构 弹性体到动触点。 打开弹簧在连杆机构和控制机构之间沿轴向横向设置。 整体凸缘设置在打开弹簧壳体和闭合弹簧壳体上。

公开(公告)号：US20150054524A1

公开(公告)日：2015-02-26

申请号：US14451141

申请日：2014-08-04

Applicant: Hitachi, Ltd.

Inventor： Chie KOBAYASHI ,  Toshiaki ROKUNOHE ,  Yoshiharu WADA ,  Go KOBAYASHI ,  Ken OBAYASHI

IPC: G01R31/12 ,  G01R31/14 ,  G01R31/40

CPC classification number: G01R31/1227

Abstract: A partial discharge measurement device according to the present invention includes a frequency separation unit for separating a partial discharge signal which occurs in an apparatus under diagnosis and is detected by a sensor into the partial discharge signal and a main circuit voltage phase signal, an arithmetic device which receives the partial discharge signal and the main circuit voltage phase signal separated by the frequency separation unit and calculates a partial discharge signal synchronized with a main circuit voltage based on the partial discharge signal and the main circuit voltage phase signal, a power supply device for extracting a voltage obtained by dividing the main circuit voltage and supplying a power supply voltage to the arithmetic device, and a control unit for issuing an instruction for powering on or off at least the arithmetic device to the power supply device.

Abstract translation: 根据本发明的局部放电测量装置包括：频率分离单元，用于将在诊断中发生的并且由传感器检测到的局部放电信号分离成局部放电信号和主电路电压相位信号;运算器件 其接收由频率分离单元分离的局部放电信号和主电路电压相位信号，并且基于部分放电信号和主电路电压相位信号计算与主电路电压同步的局部放电信号;电源装置， 提取通过划分主电路电压而获得的电压并将电源电压提供给运算装置;以及控制单元，用于向至少一个运算装置发送接通或关闭供电装置的指令。