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61. 发明申请

US20170077827A1 PORTABLE ELECTRICAL GENERATOR SYSTEM FOR PROVIDING TEMPORARY DISTRIBUTION OF SINGLE-PHASE AND THREE-PHASE POWER 审中-公开
标题翻译：便携式电力发电机系统，用于提供单相和三相临时分配的临时分配
公开(公告)号：US20170077827A1
公开(公告)日：2017-03-16
申请号：US15360345
申请日：2016-11-23
申请人： VMC Power Systems
发明人： Mark C. McCartney , Nicolas V. Valente
IPC分类号： H02M5/12 , H01F27/00 , H01F38/32 , H01F30/10 , H01F38/24
CPC分类号： H02M5/12 , F02B63/047 , H01F27/002 , H01F30/10 , H01F38/24 , H01F38/32
摘要： A portable generator system is used to provide temporary electrical power. The portable generator system has a vehicle, a generator, a step-up system, and a output interface. The step up system has one or more transformers for stepping up a voltage of the generator to a distribution voltage.
摘要翻译：便携式发电机系统用于提供临时电力。便携式发电机系统具有车辆，发电机，升压系统和输出接口。升压系统具有一个或多个变压器，用于将发电机的电压升高到分配电压。

62. 发明申请

US20120268100A1 ERROR COMPENSATION FOR CURRENT TRANSFORMER SENSORS 有权
标题翻译：电流互感器传感器误差补偿
公开(公告)号：US20120268100A1
公开(公告)日：2012-10-25
申请号：US13453949
申请日：2012-04-23
申请人： George O. Langer , Christopher Scott Brown , Samad Seyfi
发明人： George O. Langer , Christopher Scott Brown , Samad Seyfi
IPC分类号： H01F38/32
CPC分类号： H01F38/32 , H01F27/427
摘要： Phase angle error and ratio error correction is provided in a current transformer by a bucking voltage opposite in phase to the voltage drop across the burden resistor and inherent winding resistance.
摘要翻译：在电流互感器中通过与负载电阻和固有绕组电阻两端的电压相位相反的降压电压提供相位角误差和比率误差校正。

63. 发明授权

US6160697A Method and apparatus for magnetizing and demagnetizing current transformers and magnetic bodies 有权
标题翻译：用于磁化和去磁电流互感器和磁体的方法和装置
公开(公告)号：US6160697A
公开(公告)日：2000-12-12
申请号：US541403
申请日：2000-03-31
申请人： Thomas G. Edel
发明人： Thomas G. Edel
IPC分类号： G01R15/18 , H01F13/00 , H01F38/32 , H01H47/00
CPC分类号： G01R15/185 , H01F13/006 , H01F38/32
摘要： A method and apparatus for establishing and maintaining a preferred induction level in a magnetic body. A varying voltage is applied to a conductive winding (61) that magnetically interacts with a magnetic body (60). The voltage is controlled during a first phase in such a way that the magnetic induction level of the magnetic body is changed from an unknown induction level to a known induction level. During a second phase, the induced voltage across the winding is controlled so that the induction level is changed from the known induction level to the preferred induction level. An optional third phase may be utilized, during which the average value of induced voltage is kept near zero in order to keep the induction level near the preferred induction level. The invention is especially applicable to ordinary current transformers, which may be demagnetized automatically while remaining in service. Once demagnetized, ordinary current transformers are able to accurately sense non-symmetrical currents, including d-c currents and a-c currents that have d-c components. A demagnetizing mode, during which the current transformer is demagnetized, and a current-sensing mode, during which current transformer secondary current is sensed, are usually utilized sequentially. For a-c power system applications, a current transformer demagnetizing circuit may include an adjustable impedance with a suitable control circuit. A controllable electric energy source may also be used as part of a current transformer demagnetizing circuit, in which case an ordinary current transformer may used to sense d-c current as well as a-c current, and the preferred embodiment has the advantage of being able to reduce the burden of the entire secondary circuit to near zero ohms for increased current-sensing accuracy.
摘要翻译：一种用于在磁体中建立和保持优选感应电平的方法和装置。将变化的电压施加到与磁体（60）磁性相互作用的导电绕组（61）。在第一阶段期间控制电压，使得磁体的磁感应电平从未知的感应电平变化到已知的感应电平。在第二阶段期间，控制绕组两端的感应电压，使得感应电平从已知的感应电平改变到优选的感应电平。可以使用可选的第三相，在此期间，感应电压的平均值保持接近零，以便使感应电平保持在优选的感应电平附近。本发明特别适用于普通电流互感器，其可以在使用中自动消磁。一旦退磁，普通电流互感器能够精确地感测非对称电流，包括具有d-c分量的d-c电流和a-c电流。电流互感器退磁的退磁模式和感应电流互感器二次电流的电流检测模式通常依次使用。对于a-c电力系统应用，电流互感器去磁电路可以包括具有适当控制电路的可调阻抗。可控电能源也可以用作电流互感器去磁电路的一部分，在这种情况下，普通电流互感器可以用于感测直流电流和交流电流，并且优选实施例具有能够减少整个次级电路的负载接近零欧姆，以提高电流感测精度。

64. 发明授权

US6037686A Current compensated choke filter for multi-phase motor drives 有权
标题翻译：用于多相电机驱动的电流补偿式扼流圈滤波器
公开(公告)号：US6037686A
公开(公告)日：2000-03-14
申请号：US247735
申请日：1999-02-09
申请人： Uwe Schonauer , Robert Oesterle , Christoph M. Ernecke
发明人： Uwe Schonauer , Robert Oesterle , Christoph M. Ernecke
IPC分类号： H01F17/06 , H01F37/00 , H01F38/32 , H01F38/38 , H02K11/00 , H01F17/00
CPC分类号： H01F37/00 , H01F38/32 , H01F17/06 , H01F38/38
摘要： Each torque-producing phase current of a multi-phase motor is passed through a filter which includes an R/C shunt to ground and a series, current-compensated choke. Each choke has a winding in series with each phase so that the net current generated by phase currents in the windings is zero, and therefore the net flux generated by phase currents in the highly permeable core of the choke is zero at all times. However, there is significant inductive reactance created by the non-counterbalanced motor leakage currents, which prevent leakage currents from circulating through the motor. Thus, torque-producing motor currents can accurately be measured for feedback, without pollution from leakage currents. LEM current transducers allow use of small, proportional currents in the measuring and suppress inter-phase coupling.
摘要翻译：多相电机的每个转矩产生相电流通过一个过滤器，该过滤器包括一个R / C分流到地和一个串联的电流补偿扼流圈。每个扼流圈都具有与各相串联的绕组，使得绕组中的相电流产生的净电流为零，因此在扼流圈的高可渗透芯中的相电流产生的净通量始终为零。然而，由非平衡电机泄漏电流产生的电感有明显的影响，防止漏电流通过电机循环。因此，可以精确地测量转矩产生电动机电流的反馈，而不会受到漏电流的污染。 LEM电流传感器允许在测量和抑制相间耦合时使用小的，成比例的电流。

65. 发明授权

US5828282A Apparatus and method for shielding a toroidal current sensor 失效
标题翻译：用于屏蔽环形电流传感器的装置和方法
公开(公告)号：US5828282A
公开(公告)日：1998-10-27
申请号：US764187
申请日：1996-12-13
申请人： Jerome Johnson Tiemann
发明人： Jerome Johnson Tiemann
IPC分类号： H01F27/36 , H01F38/30 , H01F38/32 , H01F38/20 , H01F27/28
CPC分类号： H01F38/32 , H01F27/365 , H01F38/30
摘要： A toroidal current transformer magnetic shield includes, in one form, a cup portion and a cap portion. Both the cup and the cap are C-shaped, and when the cap is placed over the cup, the cup and cap define a toroidal sensor chamber. The cup portion and the cap portion are constructed of magnetically permeable material, such as iron or steel. A toroidal current transformer is positioned within the sensor chamber, so that the cap and cup enclose, and magnetically shield, the toroidal current transformer.
摘要翻译：环形电流互感器磁屏蔽以一种形式包括杯部分和帽部分。杯子和帽都是C形的，并且当帽子放置在杯子上方时，杯子和帽子限定了环形传感器室。杯部分和帽部分由导磁材料（例如铁或钢）构成。环形电流互感器位于传感器室内，使得盖和杯围绕并磁屏蔽环形电流互感器。

66. 发明授权

US4744138A Method of manufacturing a high-voltage current transformer 失效
标题翻译：制造高压电流互感器的方法
公开(公告)号：US4744138A
公开(公告)日：1988-05-17
申请号：US083825
申请日：1987-08-11
申请人： Norbert Preissinger , Teofil Bogdan
发明人： Norbert Preissinger , Teofil Bogdan
IPC分类号： H01F38/30 , H01F38/32 , H01F7/06
CPC分类号： H01F38/30 , H01F2029/143 , Y10T29/4902 , Y10T29/49073
摘要： A high-voltage current transformer of the head design with a column made of insulating material which supports the head housing. The primary lead is approximately U-shaped, whereby only its horizontal base passes through the central opening of secondary system and at least one of its two legs passes downwardly through a sealing plate in an insulating-medium-tight fashion to outside the space delimited by insulating column, and is contactable from below. The other of the two legs passes through sealing plate in the case of a switchable primary lead likewise downward in an insulating-medium-tight fashion and is directly contactable or in the case of a non-switchable primary is electrically connected to the sealing plate without any holes therethrough. The head housing, designed as hood, also completely encloses primary lead and secondary system from above and is fastened in an insulating-medium-tight fashion to sealing plate.
摘要翻译：一种高压电流互感器的头部设计，具有由绝缘材料制成的柱体，支撑头部外壳。主引线大致为U形，从而只有其水平底座穿过次级系统的中心开口，并且其两条腿中的至少一条腿以绝缘 - 中密的方式向下穿过密封板到由绝缘柱，可从下方接触。两条腿中的另一条在可切换的主引线的情况下通过密封板，同样向下以绝缘介质紧密的方式，并且可直接接触，或者在不可切换的主电源的情况下，电连接到密封板而没有任何孔穿过。设计为机罩的头部外壳也从上方完全包围主引线和二次系统，并以绝缘中密封方式固定在密封板上。

67. 发明授权

US4513274A Current transformer for measuring instruments 失效
标题翻译：电流互感器用于测量仪器
公开(公告)号：US4513274A
公开(公告)日：1985-04-23
申请号：US484921
申请日：1983-04-14
申请人： Mathis Halder
发明人： Mathis Halder
IPC分类号： G01R1/20 , G01R15/18 , H01F27/42 , H01F38/28 , H01F38/32 , H01F40/00
CPC分类号： G01R15/185 , H01F27/427 , H01F38/32 , H01F2038/305
摘要： The current transformer for instruments for measuring electric currents includes a magnetic core that has two cores and an inductive current divider with three parallel current paths. The current dividers form, together with cores, two current transformer stages whose magnetic fluxes mutually cancel one another. In a current transformer for AC currents having a DC component, the ratio of the ohmic resistances of the individual current paths is in direct relation to their transformation ratio.
摘要翻译：用于测量电流的仪器的电流互感器包括具有两个磁芯的磁芯和具有三个并联电流路径的电感分压器。电流分配器与磁芯一起形成两个电流互感器级，其磁通相互抵消。在具有DC分量的AC电流的电流互感器中，各个电流路径的欧姆电阻的比率与它们的相变比直接相关。

68. 发明授权

US4179649A Voltage supply apparatus powered from a vehicular electrical system 失效
标题翻译：供电装置由车载电力系统供电
公开(公告)号：US4179649A
公开(公告)日：1979-12-18
申请号：US881421
申请日：1978-02-27
申请人： Richard A. Karlin , Robert W. McDonald , Gary F. Comiskey
发明人： Richard A. Karlin , Robert W. McDonald , Gary F. Comiskey
IPC分类号： G01R15/20 , G05F1/56 , H01F38/30 , H01F38/32 , H02J7/14 , H02J7/24 , G05F1/66 , H02J7/00
CPC分类号： G05F1/56 , G01R15/202 , H01F38/30 , H01F38/32 , H02J7/1461 , H02J7/1492 , H02J7/24 , Y02T10/92 , Y10S323/901
摘要： A series regulating transistor supplying voltage to a supply bus from a vehicular battery in which circuitry samples voltage from the supply bus for generating a correction signal for controlling operation of the regulating transistor. A first switching transistor of a starting circuit biases the regulating transistor into a conductive state in response to the connection of the battery to the apparatus and a second switching transistor switches the first switching transistor OFF responsive to the voltage level developed on the supply bus.
摘要翻译：一种串联调节晶体管，其将电压从车载电池提供给供电总线，其中电路从电源总线采样电压，用于产生用于控制调节晶体管的操作的校正信号。启动电路的第一开关晶体管响应于电池与设备的连接而将调节晶体管偏置为导通状态，并且第二开关晶体管响应于在供电总线上产生的电压电平而切换第一开关晶体管。

69. 发明授权

US4060759A Tube-insulated shell-core current transformer 失效
标题翻译：管绝缘壳芯电流互感器
公开(公告)号：US4060759A
公开(公告)日：1977-11-29
申请号：US620114
申请日：1975-10-06
申请人： Kalevi Panu
发明人： Kalevi Panu
IPC分类号： H01F38/28 , H01F38/30 , H01F38/32 , H01F40/06
CPC分类号： H01F38/28 , H01F38/30 , H01F38/32
摘要： A shell-core current transformer comprising a tubular main insulator, a measuring core arranged at least substantially coaxially with the main insulator and comprising a primary winding and a secondary winding, and a protecting core, likewise arranged at least substantially coaxially with the main insulator and comprising a primary winding and a secondary winding. The measuring core and the protecting core have a common primary winding, arranged outside the main insulator, and a common outer core part functioning as magnetic return circuit. The inner part of the measuring core, with the exception of the inner yoke portions, and the secondary winding of the measuring core are within the main insulator placed inside the inner part of the protecting core and inside the secondary winding of the protecting core, and the measuring core and the protecting core have common inner yoke portions.
摘要翻译：一种壳芯电流互感器，包括管状主绝缘体，测量芯，其至少与主绝缘体同轴布置并且包括初级绕组和次级绕组，以及保护芯，其同样地布置成与主绝缘体至少基本同轴; 包括初级绕组和次级绕组。测量芯和保护芯具有布置在主绝缘体外部的公共初级绕组和用作磁回路的公共外芯部分。测量铁心的内部除内磁轭部分外，测量铁芯的次级绕组位于保护芯的内部内部和保护芯的次级绕组内部的主绝缘体之内，测量芯和保护芯具有共同的内磁轭部分。

70. 发明授权

US3815013A Current transformer with active load termination 失效
标题翻译：具有有效负载终止的电流互感器
公开(公告)号：US3815013A
公开(公告)日：1974-06-04
申请号：US36542973
申请日：1973-05-31
申请人： GEN ELECTRIC
发明人： MILKOVIC M
IPC分类号： G01R15/18 , H01F38/32 , G01R19/00
CPC分类号： G01R15/18 , G01R15/183 , H01F38/32 , H02H3/05
摘要： A current transformer and transresistance amplifier are combined; the secondary winding of the current transformer being connected to the input of the transresistance amplifier and being virtually short-circuited because of the very low input impedance of the transresistance amplifier. The transresistance amplifier, nevertheless, supplies an output voltage which is proportional to current in the primary winding of the current transformer. An output voltage is developed from the current in the secondary winding. An important advantage, among others, of the subject combination is that a current transformer having considerably lower volt-ampere capacity may be employed. A current transformer employed alone for the same purpose would have to have a much larger volt-ampere capacity.
摘要翻译：组合电流互感器和跨阻放大器; 电流互感器的次级绕组连接到跨阻放大器的输入，并且由于跨阻放大器的输入阻抗非常低，实际上短路。然而，跨电阻放大器提供与电流互感器的初级绕组中的电流成比例的输出电压。从次级绕组中的电流产生输出电压。主题组合的一个重要优点是可以采用具有相当低的伏安电容的电流互感器。为了相同目的单独使用的电流互感器将必须具有更大的伏安电容。

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