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    Method For Measuring A Fluid Density Or A Fluid Viscosity
    1.
    发明申请
    Method For Measuring A Fluid Density Or A Fluid Viscosity 有权
    测量流体密度或流体粘度的方法

    公开(公告)号：US20140331766A1

    公开(公告)日：2014-11-13

    申请号：US14444561

    申请日：2014-07-28

    申请人： Axel Kramer ,  Hubert Brandle ,  Thomas Alfred Paul

    发明人： Axel Kramer ,  Hubert Brandle ,  Thomas Alfred Paul

    IPC分类号： G01N29/036 ,  G01N9/00 ,  G01N11/16

    CPC分类号： G01N29/036 ,  G01N9/002 ,  G01N9/34 ,  G01N11/16 ,  G01N29/022 ,  G01N29/4472 ,  G01N2009/006 ,  G01N2291/02818 ,  G01N2291/0427

    摘要： A method and device for estimating a density value ρm indicative of a true density ρ or for estimating a viscosity value ηm indicative of a true viscosity η of a fluid is disclosed. For this, a first resonance frequency fR of a first mechanical oscillator in a reference volume and a second resonance frequency fF of a second mechanical oscillator in contact with the fluid are measured. The estimated value ρm or ηm is then derived using these resonance frequencies fR and fF. During this derivation, at least one fluid-temperature- or fluid-pressure-dependent parameter of the fluid is used. Additionally or alternatively, the first (i.e. reference) mechanical oscillator is arranged in contact with a reference fluid. Thus, fundamental errors in the derivation of the estimated value ρm or ηm are reduced and the estimated value becomes more reliable.

    摘要翻译： 用于估计表示真实密度的密度值的方法和装置 或用于估计表示真实粘度和粘度的粘度值和eegr; 的流体。 为此，测量参考体积中的第一机械振荡器的第一共振频率fR和与流体接触的第二机械振荡器的第二共振频率fF。 然后使用这些谐振频率fR和fF导出估计值＆rgrm或eegr m。 在此推导过程中，使用流体的至少一个流体温度或流体压力参数。 附加地或替代地，第一（即参考）机械振荡器布置成与参考流体接触。 因此，推导估计值＆rgrm或eegr m的基本误差减小，估计值变得更可靠。

    Method for operating an electrical apparatus
    4.
    发明授权
    Method for operating an electrical apparatus 有权
    电气设备操作方法

    公开(公告)号：US09263862B2

    公开(公告)日：2016-02-16

    申请号：US14304591

    申请日：2014-06-13

    申请人： Axel Kramer ,  Thomas Alfred Paul

    发明人： Axel Kramer ,  Thomas Alfred Paul

    IPC分类号： H02B13/065 ,  G01N33/00 ,  H01H33/56

    CPC分类号： H02B13/0655 ,  G01N33/0027 ,  G01N33/0032 ,  H01H2033/566

    摘要： A method and device for operating a fluid-insulated electrical apparatus. The insulation fluid of the electrical apparatus includes at least two components. The method includes the step of determining a physical state of the insulation fluid by measuring at least three measurement variables with sensors. The method further includes the step of deriving trend variables indicative of changes over time for the measurement variables and/or for characterizing variables. These characterizing variables are derived from the measurement variables by using a relating equation, such as an equation of state, and are also indicative of the physical state of the insulation fluid. By testing for specific patterns of the trend variables, an operating state of the electrical apparatus is determined. The possible operating states correspond to specific and distinguishable non-fault and fault scenarios for the electrical apparatus. Thus, operating states can be distinguished and trouble-shooting in case of a failure is simplified.

    摘要翻译： 一种用于操作流体绝缘电气设备的方法和装置。 电气设备的绝缘流体包括至少两个部件。 该方法包括通过用传感器测量至少三个测量变量来确定绝缘流体的物理状态的步骤。 该方法还包括导出指示测量变量随时间变化的趋势变量和/或表征变量的步骤。 这些特征变量通过使用诸如状态方程的相关方程从测量变量导出，并且还表示绝缘流体的物理状态。 通过测试趋势变量的特定模式，确定电气设备的工作状态。 可能的操作状态对应于电气设备的特定且可区分的非故障和故障情况。 因此，可以区分操作状态，并且在故障的情况下简化故障排除。

    Device And Method For Monitoring Rooms Equipped With High-Voltage Apparatuses
    7.
    发明申请
    Device And Method For Monitoring Rooms Equipped With High-Voltage Apparatuses 有权
    监控房间配备高压设备的装置及方法

    公开(公告)号：US20150247788A1

    公开(公告)日：2015-09-03

    申请号：US14638712

    申请日：2015-03-04

    申请人： Thomas Alfred Paul ,  Axel Kramer ,  Mathias Ingold

    发明人： Thomas Alfred Paul ,  Axel Kramer ,  Mathias Ingold

    IPC分类号： G01N15/06 ,  E04H5/02

    CPC分类号： G01N15/06 ,  E04H5/02 ,  G01N21/31 ,  G01N21/33 ,  G01N21/3504 ,  G01N21/3581 ,  G01N2015/0693 ,  H01H33/563

    摘要： A monitoring device for determining the concentration of a dielectric insulation fluid such as a perfluoroketones in a room housing at least one high-voltage electrical apparatus and being accessible by humans essentially without modifying the room conditions, for example the room being a part of an air-insulated substation, with the monitoring system including one or more sensors for determining an emission and/or absorption of the dielectric insulation fluid molecules at at least one wavelength or wavelength band of the electromagnetic wave spectrum.

    摘要翻译： 一种监测装置，用于确定在容纳至少一个高压电气设备的房间中的诸如全氟酮之类的介电绝缘流体的介电绝缘流体的浓度，基本上不改变房间条件，例如房间是空气的一部分 所述监控系统包括用于确定所述电磁波频谱的至少一个波长或波长带处的介电绝缘流体分子的发射和/或吸收的一个或多个传感器。

    Method And Device For Determining An Operating Parameter Of A Fluid Insulated Electrical Apparatus
    8.
    发明申请
    Method And Device For Determining An Operating Parameter Of A Fluid Insulated Electrical Apparatus 有权
    用于确定流体绝缘电气设备操作参数的方法和装置

    公开(公告)号：US20140306718A1

    公开(公告)日：2014-10-16

    申请号：US14304647

    申请日：2014-06-13

    申请人： Axel Kramer ,  Thomas Alfred Paul ,  Navid Mahdizadeh ,  Nitesh Ranjan

    发明人： Axel Kramer ,  Thomas Alfred Paul ,  Navid Mahdizadeh ,  Nitesh Ranjan

    IPC分类号： G01R31/12 ,  G01R31/06 ,  G01R31/327

    CPC分类号： G01R31/1281 ,  G01R31/06 ,  G01R31/3275 ,  H01H33/563 ,  H01H2033/566

    摘要： A method for deriving at least one operating parameter of a fluid-insulated electrical apparatus, in particular of gas-insulated switchgear. The operating parameter is dependent on a dielectric breakdown strength of an insulation fluid of the electrical apparatus. The insulation fluid includes at least three components that are assigned to at least a first and a second component group such that at least one component group comprises at least two components. The component groups differ in their weighted average values of the molecular masses of the components in the respective component groups. At least one quantity which is indicative of the concentration of the first component group and of the concentration of the second component group is determined from the insulation fluid, e.g. by measuring one or more measurement variables with one or more sensors. The operating parameter is then derived using the at least one quantity.

    摘要翻译： 一种用于导出流体绝缘电气装置，特别是气体绝缘开关装置的至少一个操作参数的方法。 操作参数取决于电气设备的绝缘流体的绝缘击穿强度。 绝缘流体包括分配给至少第一和第二组分组的至少三种组分，使得至少一种组分组包含至少两种组分。 组分组各组分组分中组分的分子质量的加权平均值不同。 至少一个指示第一组分组的浓度和第二组分组的浓度的量由绝缘流体确定。 通过用一个或多个传感器测量一个或多个测量变量。 然后使用至少一个数量导出操作参数。