Monitoring device for detecting faults in an electrical device,
particularly in an LC filter circuit in an AC voltage network
    81.
    发明授权
    Monitoring device for detecting faults in an electrical device, particularly in an LC filter circuit in an AC voltage network 失效
    用于检测电气设备中的故障的监控装置,特别是在AC电压网络中的LC滤波器电路中

    公开(公告)号:US4713604A

    公开(公告)日:1987-12-15

    申请号:US721600

    申请日:1985-04-10

    CPC分类号: H02H7/16

    摘要: A monitoring device connected to an LC filter circuit for determining the occurrence of faults therein includes sensors for measuring the voltage drop across the LC filter circuit and the current flow therethrough. The monitoring device includes simulation circuits for estimating the voltage drop and current flow in response to the actual values of the current flow and voltage drop, respectively. In one position of the double-throw switch, the actual value of the current is compared with an estimated value thereof while in another position of the double-throw switch, an estimated value of the voltage drop is compared with the actual value thereof. Differences between the compared values are detected by a multiplicity of Y-connected limit and counting stages activatable by voltages of different magnitudes and directions for indicating different kinds of faults and for selectively disconnecting the LC filter circuit from a power supply network.

    摘要翻译: 连接到用于确定故障发生的LC滤波器电路的监视装置包括用于测量LC滤波器电路两端的电压降和通过其的电流的传感器。 监测装置包括分别响应于电流和电压降的实际值来估计电压降和电流的仿真电路。 在双掷开关的一个位置,将电流的实际值与其估计值进行比较,而在双掷开关的另一位置,将电压降的估计值与其实际值进行比较。 通过用于指示不同种类的故障的不同幅度和方向的电压可激活的多个Y连接极限和计数级以及用于选择性地将LC滤波器电路与电源网络断开来检测比较值之间的差异。

    Monitoring system for an LC filter circuit in an AC power network
    82.
    发明授权
    Monitoring system for an LC filter circuit in an AC power network 失效
    交流电源网络中LC滤波电路的监控系统

    公开(公告)号:US4409542A

    公开(公告)日:1983-10-11

    申请号:US266279

    申请日:1981-05-26

    CPC分类号: H02H3/44 H02H3/365 H02H7/16

    摘要: A monitoring system for measuring the phase currents of a filter circuit, the monitoring system having current measuring transformers coupled to respective filter sections for suppressing the harmonic content. Voltage measuring transformers are provided for measuring the network phase voltages, each such voltage measuring transformer being coupled to an electronic filter simulator and a filtering section for suppressing harmonic content. The fundamental frequency component of the measured phase currents and the simulated phase currents are conducted to transient comparator circuitry which is coupled to indicating and triggering circuitry having individual counter stages. Only rapid variations between the measured and simulated phase currents will result in fault indications, thereby preventing false indications resulting from variations in temperature.

    摘要翻译: 一种用于测量滤波器电路的相电流的监测系统,该监测系统具有耦合到相应滤波器部分的用于抑制谐波含量的电流测量变压器。 提供电压测量变压器用于测量网络相电压,每个这样的电压测量变压器耦合到电子滤波器模拟器和用于抑制谐波含量的滤波部分。 所测量的相电流和模拟相电流的基频分量被传送到瞬态比较器电路,该电路耦合到具有各个计数级的指示和触发电路。 测量和模拟相电流之间的快速变化将导致故障指示,从而防止由温度变化引起的错误指示。

    Protective circuit arrangement for a high-voltage capacitor bank
    83.
    发明授权
    Protective circuit arrangement for a high-voltage capacitor bank 失效
    高压电容器组的保护电路装置

    公开(公告)号:US3984734A

    公开(公告)日:1976-10-05

    申请号:US623113

    申请日:1975-10-16

    申请人: Michael Becker

    发明人: Michael Becker

    IPC分类号: H02H3/36 H02H7/16

    CPC分类号: H02H3/36 H02H7/16

    摘要: A protective circuit for a high-voltage capacitor bank in which the capacitor bank is subdivided into two equal parallel branches with a current measuring device connected in series with each branch and the outputs of the two current measuring devices connected to a differential protection relay.

    摘要翻译: 用于高压电容器组的保护电路,其中电容器组被细分成两个相等的并联分支,其中电流测量装置与每个分支串联连接,并且两个电流测量装置的输出连接到差动保护继电器。

    Sensor housing
    85.
    发明授权
    Sensor housing 有权
    传感器外壳

    公开(公告)号:US09518848B2

    公开(公告)日:2016-12-13

    申请号:US11871971

    申请日:2007-10-12

    IPC分类号: G01D11/24

    CPC分类号: G01D11/245 Y10T428/13

    摘要: A sensor housing (1) includes a basic body (2) and two tube sections (4, 9) projecting from the basic body (2). At least a first one (4; 9) of the tube sections has an outside thread which is interrupted in circumferential direction by at least one recessed facet (15, 17; 19, 20). The facet (15, 17; 19, 20) extends—from a center plane of the first tube section (4; 9) being parallel to the longitudinal axis of the second tube section (9; 4)—on at least one side of this center plane essentially perpendicularly to it.

    摘要翻译: 传感器壳体(1)包括基体(2)和从基体(2)突出的两个管段(4,9)。 管段的至少第一(4; 9)具有通过至少一个凹面(15,17; 19,20)沿圆周方向中断的外螺纹。 所述小面(15,17; 19,20)从所述第一管部分(4; 9)的平行于所述第二管部分(9; 4)的纵向轴线的中心平面延伸 - 在至少一个侧面 该中心平面基本垂直于其。

    PUMP MODULE, PUMP BASE MODULE AND PUMP SYSTEM
    90.
    发明申请
    PUMP MODULE, PUMP BASE MODULE AND PUMP SYSTEM 有权
    泵模块,泵基模块和泵系统

    公开(公告)号:US20130011284A1

    公开(公告)日:2013-01-10

    申请号:US13272251

    申请日:2011-10-13

    申请人: Michael Becker

    发明人: Michael Becker

    IPC分类号: F04B43/12

    摘要: A module, a base module and a system which comprises a module and a base module includes a pump channel and a valve unit which is connected with the pump channel wherein a fluid can be pumped through the pump channel and the valve unit, wherein a first wall section of the valve unit is flexible. The pump module has a movable valve body arranged in the valve unit, wherein the valve body can occupy an idle position in which the valve body closes the valve unit to prevent fluid from passing through. The valve body can occupy an operating position in which the valve body allows the fluid to flow through the valve unit and in which the valve body can be put in operating position through a deformation of the first wall section of the valve bodies so that the fluid can flow through the valve unit.

    摘要翻译: 模块,基座模块和包括模块和基座模块的系统包括泵通道和与泵通道连接的阀单元,其中流体可以泵送通过泵通道和阀单元,其中第一 阀门单元的壁部是灵活的。 泵模块具有设置在阀单元中的可移动阀体,其中阀体可以占据阀体关闭阀单元以防止流体通过的空转位置。 阀体可以占据其中阀体允许流体流过阀单元的操作位置,并且其中阀体可以通过阀体的第一壁部分的变形而处于操作位置,使得流体 可以流过阀门单元。