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1. 发明授权

US6114863A Method for determining the presence of water in materials 失效
标题翻译：确定材料中水分存在的方法
公开(公告)号：US6114863A
公开(公告)日：2000-09-05
申请号：US69448
申请日：1998-04-29
申请人： John Raymond Krahn , Clive William Reed
发明人： John Raymond Krahn , Clive William Reed
IPC分类号： G01N22/04 , G01N22/00 , G01N27/02 , G01R27/28 , G01R27/08 , G01R27/26
CPC分类号： G01N27/02
摘要： An improved process for determining the presence of water in a material is disclosed. A set of electrodes is placed on the surface of a layer of the material being monitored, and an electric field is established therebetween. The phase angle for the electric field at a pre-selected frequency is measured, and compared with a predetermined phase angle for a dry portion of the material. A significant difference between the phase angle for the material being monitored and the predetermined phase angle is indicative of the presence of water in the material. The material being monitored may be an electrical insulating material, e.g., for conductive components in water-cooled electrical generators. Electrical generators monitored in this manner are also within the scope of this disclosure.
摘要翻译：公开了一种用于确定材料中水的存在的改进方法。将一组电极放置在被监测材料层的表面上，并在其间建立电场。测量预选频率处的电场的相位角，并与材料的干燥部分的预定相位角进行比较。所监测的材料的相位角与预定的相位角之间的显着差异表示材料中存在水。被监测的材料可以是电绝缘材料，例如用于水冷发电机中的导电组件。以这种方式监测的发电机也在本公开的范围内。

2. 发明授权

US5991137A Partial discharge coupler 失效
标题翻译：部分放电耦合器
公开(公告)号：US5991137A
公开(公告)日：1999-11-23
申请号：US970464
申请日：1997-11-14
申请人： John Raymond Krahn , Clive William Reed
发明人： John Raymond Krahn , Clive William Reed
IPC分类号： G01R31/12 , H02H5/00
CPC分类号： G01R31/1227
摘要： A partial discharge (PD) coupler includes at least one high voltage capacitor; potting material surrounding the capacitor; and a fuse physically and electrically connected in series to the capacitor. The capacitor and the fuse are capable of passing high frequency partial discharge with minimal attenuation. The PD coupler can have potting material surrounding both the capacitor and the fuse. The PD coupler can include a housing surrounding the capacitor, the potting material, and the fuse.
摘要翻译：局部放电（PD）耦合器包括至少一个高压电容器; 围绕电容器的灌封材料; 以及与电容器串联物理和电连接的保险丝。电容器和保险丝能够以最小的衰减通过高频部分放电。 PD耦合器可以具有围绕电容器和保险丝的封装材料。 PD耦合器可以包括围绕电容器，封装材料和保险丝的壳体。

3. 发明申请

US20120269660A1 ELECTRIC MOTOR AND ELECTRIC SUBMERSIBLE PUMP 审中-公开
标题翻译：电动马达和电动潜水泵
公开(公告)号：US20120269660A1
公开(公告)日：2012-10-25
申请号：US13093306
申请日：2011-04-25
申请人： Weijun Yin , John Raymond Krahn
发明人： Weijun Yin , John Raymond Krahn
IPC分类号： F04B35/04 , H02K5/132 , H02K9/19
CPC分类号： F04B47/06 , H02K3/30 , H02K5/132 , H02K9/19
摘要： In accordance with one aspect of the present invention, an electric motor is provided that includes a housing, a stator, and a rotor, wherein the stator and the rotor are disposed within the housing. The housing, the stator, and the rotor define an internal volume within the housing, said internal volume configured to receive a dielectric fluid. The stator includes a winding including an electrical conductor disposed within a porous ceramic insulating layer, said porous ceramic insulating layer being in fluid communication with the internal volume. An electric submersible pump system is also provided.
摘要翻译：根据本发明的一个方面，提供一种电动机，其包括壳体，定子和转子，其中定子和转子设置在壳体内。壳体，定子和转子在壳体内限定内部体积，所述内部体积构造成接收电介质流体。定子包括一个绕组，该绕组包括布置在多孔陶瓷绝缘层内的电导体，所述多孔陶瓷绝缘层与内部体积流体连通。还提供电潜泵系统。

4. 发明授权

US06573727B2 Method and apparatus for evaluation of insulation in variable speed motors 有权
公开(公告)号：US06573727B2
公开(公告)日：2003-06-03
申请号：US09681141
申请日：2001-01-25
申请人： John Raymond Krahn , Thomas Paul Feist
发明人： John Raymond Krahn , Thomas Paul Feist
IPC分类号： H01H3300
CPC分类号： G01R31/343
摘要： A signal obtained from the drive input of a motor or an insulated winding is applied to a sensor that strongly rejects high frequency drive signal components yet passes discharge signal components. This allows discharge signal components to be detected in the presence of harmonics of the drive signal. The voltage of the drive signal may be varied so that the lowest drive signal voltage producing a discharge event may be determined. That voltage is the motor or winding's corona inception voltage.

5. 发明授权

US08409692B2 Insulation structure for resistor grids 有权
标题翻译：电阻网格绝缘结构
公开(公告)号：US08409692B2
公开(公告)日：2013-04-02
申请号：US13470562
申请日：2012-05-14
申请人： John Raymond Krahn
发明人： John Raymond Krahn
IPC分类号： B32B3/10 , B32B3/00 , B32B3/20
CPC分类号： H01C3/10 , H01C1/08 , Y10T29/49227 , Y10T428/24273 , Y10T428/24322 , Y10T428/24562 , Y10T428/24744
摘要： An insulation board for a resistor grid and methods for manufacturing the same are disclosed. The insulation board consists of a plurality of longitudinal voids. One or more longitudinal structural members are disposed in the longitudinal voids. The longitudinal structural members may be shaped to conform to the shape of the longitudinal voids. The method of constructing the insulation board includes providing a profiled block and inserting one or more longitudinal structural members in the longitudinal voids. Alternatively, the insulation board may be constructed by providing one or more longitudinal structural members and molding a profiled block over the longitudinal structural members. One or more rows of transverse pin holes may be provided along the length of the insulation board for engaging pins of resistive elements of the resistor grid.
摘要翻译：公开了一种用于电阻网格的绝缘板及其制造方法。绝缘板由多个纵向空隙组成。一个或多个纵向结构构件设置在纵向空隙中。纵向结构构件可以被成形为符合纵向空隙的形状。构造绝缘板的方法包括提供成型块并将一个或多个纵向结构构件插入纵向空隙中。或者，绝缘板可以通过提供一个或多个纵向结构构件并在纵向结构构件上模制成型块来构造。可以沿着绝缘板的长度设置一排或多排横向销孔，用于接合电阻器栅格的电阻元件的引脚。

6. 发明授权

US06582825B2 Hydrophobicity imparting particulate 失效
标题翻译：疏水性赋予颗粒
公开(公告)号：US06582825B2
公开(公告)日：2003-06-24
申请号：US09943236
申请日：2001-08-30
申请人： Jayantha Amarasekera , John Raymond Krahn
发明人： Jayantha Amarasekera , John Raymond Krahn
IPC分类号： B32B2520
CPC分类号： H01B3/46 , C08K3/26 , C08K3/34 , Y10T428/2995 , Y10T428/31525 , Y10T428/31663 , C08L83/04
摘要： A hydrophobicity imparting particulate is provided in the present invention. A silicone composition comprises (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler that imparts a hydrophobicity property to the composition. An insulator comprises a housing portion that includes a cured product of (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler. A hydrophobicity recovery property of a silicone polymer composition can be improved by determining a target hydrophobicity recovery property for the cured silicone composition, selecting a hydrophobicity imparting particulate (HIP) to impart the hydrophobicity recovery property to the silicone polymer composition and compounding a blend of (A) a silicone polymer and (B) the selected inorganic filler and heating to cure the blend.
摘要翻译：在本发明中提供赋予疏水性的颗粒。有机硅组合物包含（A）硅氧烷聚合物和（B）赋予组合物疏水性的疏水性赋予颗粒填料。绝缘体包括壳体部分，其包含（A）硅氧烷聚合物和（B）赋予疏水性的颗粒填料的固化产物。硅氧烷聚合物组合物的疏水性恢复性能可以通过确定固化的硅氧烷组合物的目标疏水性恢复性能来提高，选择赋予疏水性的颗粒（HIP）以赋予硅氧烷聚合物组合物的疏水性恢复性能，并且混合（ A）硅氧烷聚合物和（B）所选的无机填料并加热以固化共混物。

7. 发明授权

US06300767B1 System and apparatus for predicting failure in insulated systems 有权
标题翻译：用于预测绝缘系统故障的系统和装置
公开(公告)号：US06300767B1
公开(公告)日：2001-10-09
申请号：US09201224
申请日：1998-11-30
申请人： Gerald Burt Kliman , John Raymond Krahn , Howard Leroy Lester , John Stanley Glaser , William James Premerlani
发明人： Gerald Burt Kliman , John Raymond Krahn , Howard Leroy Lester , John Stanley Glaser , William James Premerlani
IPC分类号： G01R3102
CPC分类号： G01R31/14
摘要： A radio frequency (RF) or other form of detector detects discharges of an insulated system which can occur when electrical insulation becomes wet, for subsequent analysis and decision processes. Additionally, for RF detection, a frequency selector can be used to select a “quiet” region of the discharge spectrum before demodulation and further analysis and decision. Finally, redundant sets of such filters avoid the need to continuously reconfigure the detection system.
摘要翻译：射频（RF）或其他形式的检测器检测当电绝缘变湿时可能发生的绝缘系统的放电，以便后续的分析和决策过程。另外，对于RF检测，频率选择器可用于在解调之前选择放电频谱的“安静”区域，并进一步分析和决定。最后，冗余的这种滤波器避免了连续重新配置检测系统的需要。

8. 发明授权

US06192317B1 Statistical pattern analysis methods of partial discharge measurements in high voltage insulation 失效
标题翻译：高压绝缘中局部放电测量的统计模式分析方法
公开(公告)号：US06192317B1
公开(公告)日：2001-02-20
申请号：US09517088
申请日：2000-03-06
申请人： Birsen Yazici , John Raymond Krahn
发明人： Birsen Yazici , John Raymond Krahn
IPC分类号： G01R3108
CPC分类号： G01R31/1227 , G01R31/1272
摘要： Statistical methods of partial discharge analysis utilizing histogram similarity measures are provided by quality assessment and condition monitoring methods of evaluating high voltage electrical insulation. The quality assessment method is utilized to evaluate the quality of insulation within the electrical equipment. The condition monitoring method is utilized during normal operation of the equipment to identify degradation in the insulation and to predict catastrophic insulation failures.
摘要翻译：利用直方图相似性测量法进行局部放电分析的统计方法由评估高压电气绝缘的质量评估和状态监测方法提供。质量评估方法用于评估电气设备内的绝缘质量。在设备的正常运行期间利用状态监测方法来识别绝缘中的劣化并预测灾难性绝缘故障。

9. 发明授权

US06323659B1 Material for improved sensitivity of stray field electrodes 失效
标题翻译：用于提高杂散场电极灵敏度的材料
公开(公告)号：US06323659B1
公开(公告)日：2001-11-27
申请号：US09407312
申请日：1999-09-28
申请人： John Raymond Krahn
发明人： John Raymond Krahn
IPC分类号： H01H3112
CPC分类号： G01N27/226 , G01N27/223
摘要： A stray field electrode (1) includes a base material (2) and a conductive filler material (3). The base material is preferably an insulating material, such as a silicone elastomer film. The conductive filler material is preferably a metal, such as silver particles dispersed in the silicone elastomer film. A set of stray field electrodes (16, 17, 18) may be used to determine the presence of water in a material (8), such as electrical generator insulation (14), by comparing a phase angle for the electric field (19, 20) between the electrodes with a predetermined phase angle for a dry material (8).
摘要翻译：杂散电场（1）包括基材（2）和导电填料（3）。基材优选为绝缘材料，例如硅氧烷弹性体膜。导电性填充材料优选为金属，例如分散在有机硅弹性体膜中的银粒子。可以使用一组杂散电场电极（16,17,18）来确定材料（8）中的水的存在，例如发电机绝缘层（14），通过比较电场的相位角（19， 20）在干燥材料（8）之间具有预定的相位角。

10. 发明申请

US20120282120A1 ELECTRIC CABLE, ELECTRIC MOTOR AND ELECTRIC SUBMERSIBLE PUMP 审中-公开
标题翻译：电动马达，电动马达和电动潜水泵
公开(公告)号：US20120282120A1
公开(公告)日：2012-11-08
申请号：US13098911
申请日：2011-05-02
申请人： John Raymond Krahn , Weijun Yin , Manoj Ramprasad Shah
发明人： John Raymond Krahn , Weijun Yin , Manoj Ramprasad Shah
IPC分类号： F04D13/08 , H02K5/132 , H01B9/06 , H02K9/19
CPC分类号： H01B7/046 , F04D13/0693 , F04D13/10 , H02K5/132 , H02K5/225 , H02K9/19
摘要： In accordance with one aspect of the present invention, an electric motor is provided that includes a housing, a stator, and a rotor, wherein the stator and rotor are disposed within the housing. The housing, the stator, and the rotor define an internal volume within the housing, said internal volume configured to receive a dielectric fluid. The electric motor further includes at least one electric cable configured to electrically power the electric motor, wherein the electric cable includes at least one electrical conductor disposed within at least one protective layer, and wherein the electrical conductor and the protective layer define at least one channel configured to deliver the dielectric fluid to the internal volume. An electric submersible pump system is also provided.
摘要翻译：根据本发明的一个方面，提供了一种电动机，其包括壳体，定子和转子，其中定子和转子设置在壳体内。壳体，定子和转子在壳体内限定内部体积，所述内部体积构造成接收电介质流体。所述电动马达还包括至少一个电缆，所述至少一个电缆被配置为对所述电动机进行电力供电，其中所述电缆包括设置在至少一个保护层内的至少一个电导体，并且其中所述电导体和所述保护层限定至少一个通道被配置为将介电流体输送到内部容积。还提供电潜泵系统。

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