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公开(公告)号：US10000122B2
公开(公告)日：2018-06-19
申请号：US15300594
申请日：2015-03-23
发明人： Xiao Qiang Wu , Nikolaj Echkilev , Andreas Wellner
CPC分类号： B60L3/003 , B60L1/00 , B60L3/0069 , B60L9/00 , B60L2200/26 , H02H3/16 , H02H5/10 , H02H11/001 , H02J1/06 , H02J3/36 , H02J2001/008 , H02M1/14 , H02M1/32 , H02M7/493 , H02M7/53803 , H02M7/53871
摘要： In a method for supplying an electrical load of a vehicle with electrical energy by auxiliary converters connected in parallel on the alternating-voltage side, a current flow between the auxiliary converters and a grounded N conductor of an energy supply network is interrupted in the presence a ground fault. The auxiliary converters connected in parallel on the alternating-voltage side are operated with fundamental-wave and pulse synchronicity. An energy supply system of a vehicle, in particular of a rail vehicle, performs this method, with the energy supply system including at least two auxiliary converters arranged in parallel, an energy supply network for supplying electrical loads, at least one switch for interrupting a current flow between the auxiliary converters and the energy supply network.
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公开(公告)号：US20160154050A1
公开(公告)日：2016-06-02
申请号：US14899521
申请日：2014-06-27
发明人： HONG CHEN
CPC分类号： G01R31/08 , G01R31/026 , G01R31/07 , G05B11/01 , H02H3/046 , H02H5/10 , H02J13/0048 , Y02B90/263 , Y02E60/725 , Y04S10/20 , Y04S40/123
摘要： Apparatuses (10) comprise first circuits (1) for detecting problems in or near loads (111) powered via a cable (101) of a cable system and second circuits (2) for in response to detection results from the first circuits (1) changing a characteristic frequency of the cable system. The first circuits (1) may comprise detectors for detecting currents, voltages and impedances and the second circuits (2) may comprise signaling capacitors (21) and switches (22). Devices (30) for searching for problems in the cable system comprise third circuits (3) for measuring values of the characteristic frequency and fourth circuits (4) for comparing the measured values of the characteristic frequency with reference values. The devices (30) may comprise fifth circuits (5) for deriving from the measured values and from information about the apparatus (10) values of inductances of the cable system and sixth circuits (6) for converting the derived values into locations of the problems or into distances defining locations of the problems.
摘要翻译： 设备（10）包括用于检测通过电缆系统的电缆（101）供电的负载或靠近负载（111）的问题的第一电路（1）和用于响应于来自第一电路（1）的检测结果的第二电路（2） 改变电缆系统的特征频率。 第一电路（1）可以包括用于检测电流，电压和阻抗的检测器，并且第二电路（2）可以包括信令电容器（21）和开关（22）。 用于搜索电缆系统中的问题的设备（30）包括用于测量特征频率值的第三电路（3）和用于将特征频率的测量值与参考值进行比较的第四电路（4）。 装置（30）可以包括用于从测量值导出的第五电路（5）和关于电缆系统的电感值的信息（10）和用于将导出的值转换成问题的位置的第六电路（6） 或者定义出问题的位置的距离。
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公开(公告)号：US20150280421A1
公开(公告)日：2015-10-01
申请号：US14674034
申请日：2015-03-31
发明人： Yoshimitsu NIWA , Junichi SATO , Naoki ASARI , Nobutaka KUBOTA
CPC分类号： H02H5/10 , H01H9/542 , H01H33/002 , H01H33/596 , H01H33/66 , H01H2009/543 , H01H2009/544 , H02H3/021 , H02H3/087 , H02H3/38 , H02H9/02
摘要： A direct-current interrupter in an embodiment includes a current-carrying path and a current-interrupting path connected in parallel to the current-carrying path. The current-carrying path includes a first switch and a second switch connected in series and a resistor connected in parallel to the second switch. The first switch has a predetermined first withstand voltage property and switches between conduction and non-conduction of current by using no semiconductor switch. The second switch has a second withstand voltage property lower in withstand voltage property than the first withstand voltage property and switches between conduction and non-conduction of current by using no semiconductor switch. The resistor protects the second switch from voltage to be applied to the second switch. The current-interrupting path includes a semiconductor switch and a current source connected in series and a non-linear resistor connected in parallel to a series connection of the semiconductor switch and the current source.
摘要翻译： 实施例中的直流断流器包括与载流路径并联连接的载流路径和电流中断路径。 载流路径包括串联连接的第一开关和第二开关以及与第二开关并联连接的电阻器。 第一开关具有预定的第一耐受电压特性，并且通过不使用半导体开关来切换电流的导通和非导通。 第二开关具有比第一耐受电压特性更低的耐受电压特性的第二耐受电压特性，并且通过不使用半导体开关在电流的导通和非导通之间切换。 电阻器保护第二开关免受施加到第二开关的电压。 电流中断路径包括串联连接的半导体开关和电流源以及与半导体开关和电流源的串联连接的非线性电阻。
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4.发明授权System and method for detecting excess voltage drop in three-phase AC circuits 有权用于检测三相交流电路中过剩电压降的系统和方法公开(公告)号：US08963556B2
公开(公告)日：2015-02-24
申请号：US13873326
申请日：2013-04-30
申请人： Eaton Corporation
发明人： Santosh Kumar Sharma , Xin Zhou , Steven Andrew Dimino , Supriya Karnani , Snehal Kale , Rahul Choudhary , Debsubhra Chakraborty
CPC分类号： G01R31/024 , G01R31/026 , G01R31/088 , G01R31/343 , H02H3/33 , H02H3/44 , H02H5/10 , H02H7/228
摘要： A system and method for detecting excess voltage drop (EVD) in a three-phase electrical distribution circuit includes a diagnostic system comprising a processor that is programmed to receive three-phase voltages and currents provided to terminals of the electrical machine, determine fundamental components of the three-phase voltages and currents provided to the terminals, and compute positive, negative, and zero sequence currents from the fundamental components. The processor is also programmed to extract a compensated negative sequence current from the negative sequence current component, add the compensated negative sequence current to the positive sequence current to determine fault reference current phasors, determine a negative current reference phase angle for each phase based in part on a phase angle of the positive sequence current, and identify an EVD fault in the electrical distribution circuit based on the compensated negative sequence current, the fault reference current phasors, and the negative current reference phase angles.
摘要翻译： 用于检测三相配电电路中的过电压降（EVD）的系统和方法包括诊断系统，其包括被编程为接收提供给电机端子的三相电压和电流的处理器， 提供给端子的三相电压和电流，并从基本分量计算正，负和零序电流。 处理器还被编程为从负序电流分量提取补偿的负序电流，将补偿的负序电流加到正序电流以确定故障参考电流相量，部分地基于每个相确定负电流参考相位角 在正序电流的相位角上，基于补偿的负序电流，故障参考电流相量和负电流参考相位角来识别配电电路中的EVD故障。
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公开(公告)号：US20140002940A1
公开(公告)日：2014-01-02
申请号：US13911783
申请日：2013-06-06
发明人： Neil A. Czarnecki
IPC分类号： H02H3/20
CPC分类号： H02H3/20 , H02H5/10 , H02H11/001 , Y10T307/76
摘要： A switching device is configured to connect a split-phase power source to a load. The split-phase power source includes a first hot lead, a second hot lead, and a neutral lead. When the split-phase power source is generating power, the voltage between the first hot lead and the neutral lead closes a first contact and the voltage between the second hot lead and the neutral lead closes a second contact. The contacts are connected in series between the first hot lead, the second hot lead and a third switch. The voltage potential present between the first hot lead and the second hot lead closes a third and fourth contact. The third contact is connected in series between the first hot lead and the load and the fourth contact is connected in series between the second hot lead and the load. The switching device protects against open neutral conditions.
摘要翻译： 开关装置被配置为将分相电源连接到负载。 分相电源包括第一热引线，第二热引线和中性引线。 当分相电源发电时，第一热引线和中性线之间的电压闭合第一触点，并且第二热引线和中性引线之间的电压关闭第二触点。 触头在第一热引线，第二热引线和第三开关之间串联连接。 存在于第一热引线和第二热引线之间的电压电位关闭第三和第四触点。 第三触点串联连接在第一热引线和负载之间，第四触点串联连接在第二热引线和负载之间。 开关装置防止打开中性线。
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公开(公告)号：US07479710B2
公开(公告)日：2009-01-20
申请号：US11031474
申请日：2005-01-06
申请人： Horst Flock , Thomas Kanamueller , Joerg Ehrhardt
发明人： Horst Flock , Thomas Kanamueller , Joerg Ehrhardt
IPC分类号： B60L1/00
CPC分类号： H02H1/003 , B60R16/023 , G01R31/006 , G01R31/024 , H02H1/0015 , H02H5/10
摘要： In order to improve an electrical supply network for on-board electrical systems of vehicles, comprising at least one network system with a current feed-in connection, with at least one load connection and with a supply line system which is guided from the current feed-in connection to the at least one load connection and has at least one current-carrying line harness and at least one protective casing surrounding this, in such a manner that an electric arc can either be avoided or when an electric arc is formed this can be terminated again as quickly as possible, it is suggested that the supply line system be provided with a detector line system which is connected at a first end to a detector circuit and is connected at at least one additional end to an end element, that the detector circuit generate a test signal which is influenced in the defect-free state by the detector line system and the end element and that the detector circuit detect a defect due to deviation of the test signal from a reference value range corresponding to the defect-free state.
摘要翻译： 为了改进用于车载车载电气系统的电力供应网络，其包括具有电流馈入连接的至少一个网络系统，具有至少一个负载连接以及从当前馈送引导的供电线路系统 - 连接到所述至少一个负载连接并且具有至少一个载流线束和围绕其的至少一个保护壳体，使得可以避免电弧或当形成电弧时，这可以 尽可能快地重新终止，建议供电线系统设置有检测器线路系统，其在第一端连接到检测器电路并且在至少一个附加端连接到端部元件， 检测器电路产生受检测器线路系统和终端元件在无缺陷状态下影响的测试信号，并且检测器电路由于测试信号的偏差而检测到缺陷 l从对应于无缺陷状态的参考值范围。
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公开(公告)号：US20080211683A1
公开(公告)日：2008-09-04
申请号：US12040711
申请日：2008-02-29
申请人： Walter Curt , Christopher Mullins
发明人： Walter Curt , Christopher Mullins
CPC分类号： H02H5/10 , G01R31/026
摘要： A system is provided in which the voltage phases, neutral, and ground are monitored and an alarm is generated if specific trigger conditions are met. These conditions are indicative of a possible loose neutral, loose wiring, or general over/under voltage condition. Specific algorithms can be used to determine the possibility of a loose wiring condition, and if limits are met, various alarm modes are started.
摘要翻译： 提供一种系统，其中监视电压相位，中性线和地线，并且如果满足特定的触发条件，则产生报警。 这些条件表示可能松动的中性线，布线松动或一般的过/欠电压状况。 可以使用具体的算法来确定布线条件松动的可能性，并且如果满足限制，则开始各种报警模式。
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8.发明授权Apparatus for detecting coil failure in an actuating solenoid of an electrical power switch 有权用于检测电力开关的致动螺线管中的线圈故障的装置公开(公告)号：US07035067B2
公开(公告)日：2006-04-25
申请号：US10409256
申请日：2003-04-08
申请人： Steven C. Schmalz , Michael F. Walz
发明人： Steven C. Schmalz , Michael F. Walz
IPC分类号： H02H9/08
CPC分类号： H02H3/04 , G01R31/327 , H02H5/10
摘要： The continuity of the coil of the actuating solenoid of an electric power switch is detected through utilization of a signaling device, such as a light emitting diode (LED) that monitors energization of a dc power supply fed from the source side of the coil. A circuit energized from the other side of the coil generates a dc voltage V2 that is applied to the gate electrode of an electronic switch shunting the LED. The voltage V2 is greater than the dc supply voltage to bias the electronic switch off so that the LED is illuminated when there is continuity through the coil. If the coil fails, V2 will be zero and the electronic switch is turned on to short circuit the LED to signal the failure of the coil.
摘要翻译： 电力开关的驱动电磁线圈的线圈的连续性通过利用信号装置来检测，诸如发光二极管（LED）的信号装置，该发光二极管监测从线圈的源极侧馈送的直流电源的通电。 从线圈的另一侧通电的电路产生施加到分流LED的电子开关的栅电极的直流电压V 2。 电压V 2大于直流电源电压以偏置电子开关，使得当通过线圈有连续性时，LED被点亮。 如果线圈失效，V 2将为零，并且电子开关导通以使LED短路以表示线圈的故障。
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公开(公告)号：US06512444B1
公开(公告)日：2003-01-28
申请号：US09555823
申请日：2000-06-05
IPC分类号： H01H3714
CPC分类号： H02H5/042 , H02H1/0015 , H02H5/10
摘要： A fault sensing electrical wire (411) utilizes one or more sensor strips (407) which provide an impedance change when the wire is subject to an overtemperature condition or mechanical damage of the wire. A control unit (402) measures the impedance of the sensor strips of the fault sensing wire and provides a control signal (405) to initiate an alarm or protective action based on the severity of the condition. The control unit (402) may monitor a number of fault sensing wires simultaneously or in sequence. The apparatus may be used to sense an electrical arc occurring in the insulation of the wire.
摘要翻译： 故障感测电线（411）利用一个或多个传感器条（407），当导线受到过热条件或电线的机械损坏时，其提供阻抗变化。 控制单元（402）测量故障感测线的传感器带的阻抗，并且提供控制信号（405）以基于条件的严重性启动警报或保护动作。 控制单元（402）可以同时或按顺序监视多个故障检测线。 该装置可用于感测在电线绝缘中发生的电弧。
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公开(公告)号：US5541803A
公开(公告)日：1996-07-30
申请号：US206966
申请日：1994-03-07
摘要： An electrical safety device is disclosed which utilizes a sensor conductor configured in a continuous loop and disposed in an electrical component so as to sense overtemperature or mechanical damage over a length or wide area of the component. The sensor may be simple insulated or non insulated copper wire. A low voltage potential is maintained across the sensor conductor. The sensor circuitry includes ambient temperature compensation.
摘要翻译： 公开了一种电气安全装置，其使用以连续环路配置并设置在电气部件中的传感器导体，以便感测部件的长度或宽度区域上的过热或机械损伤。 传感器可以是简单的绝缘或非绝缘铜线。 在传感器导体上保持低电压电位。 传感器电路包括环境温度补偿。
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