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31.发明授权公开(公告)号：US07482714B2
公开(公告)日：2009-01-27
申请号：US11139969
申请日：2005-05-31
Applicant: Fred J. Rapant , Richard J. Kaluzny , Donald A. Down , Augusto D. Hernandez, Jr., legal representative
Inventor： Augusto D. Hernandez
CPC classification number: H01H1/0015 , H01F29/04 , H01H1/60 , H01H2009/0061 , Y10T307/911 , Y10T307/918 , Y10T307/924 , Y10T307/931 , Y10T307/951
Abstract: A preventive maintenance tapping technique includes noting a tap position of a load tap changer and noting a duration that the tap position has been held. The duration that the tap position has been held is compared to a threshold value, and the tap position is changed if the tap position has been held for longer than the threshold value. Similarly, a duty cycle monitoring technique for monitoring life of load tap changer contacts includes detecting an arcing event. Arcing surfaces involved in the arcing event are identified and the effects of the arcing event on the arcing surfaces are calculated. Estimates of the erosion on the arcing surfaces are updated, and the estimates are compared to a threshold value. A signal for maintenance is generated when the estimate exceeds the threshold value.
Abstract translation: 预防性维护攻丝技术包括注意有载分接开关的抽头位置并注意到抽头位置被保持的持续时间。 将抽头位置保持的持续时间与阈值进行比较，并且如果抽头位置被保持长于阈值，则抽头位置被改变。 类似地，用于监测有载分接开关触点寿命的占空比监视技术包括检测电弧事件。 识别涉及电弧事件的电弧曲面，并计算电弧放电事件对电弧曲面的影响。 更新对电弧表面的侵蚀的估计，并将估计值与阈值进行比较。 当估计值超过阈值时，产生用于维护的信号。
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公开(公告)号：USRE39446E1
公开(公告)日：2006-12-26
申请号：US10102140
申请日：2002-03-21
Applicant: Peter G. Winch , Richard Billingsley
Inventor： Peter G. Winch , Richard Billingsley
IPC: H02H3/18
CPC classification number: H02H11/002 , H02H9/005 , Y10T307/839 , Y10T307/924 , Y10T307/931
Abstract: A power filter circuit for protecting electronic equipment from electromagnetic interference introduced by a supply system circuit includes a fault/condition sensing circuit capable of detecting whether the supply system circuit is properly wired. The sensing circuit controls switching circuits in accordance with the determination of whether the supply system is properly wired. The sensing circuit activates a first switching circuit to form a short circuit between the neutral and ground conductors of the power filter circuit when it is determined that the supply system circuit is properly wired. If any wiring fault conditions, including a reverse polarity wiring, is detected by the sensing circuit, the first switch is not activated and the short circuit is not formed between the neutral and ground conductors. The sensing circuit controls a second switching circuit which corrects the polarity when a reverse polarity condition is detected and which does not change the polarity when a correct polarity condition is detected. The sensing circuit can be used with the first and second switching circuits in combination. In this case, the first switching circuit can form a short circuit between the line conductor of the power filter circuit and the ground conductor when a reverse polarity condition is detected to provide superior common mode electromagnetic interference suppression.
Abstract translation: 用于保护电子设备不受电源系统电路引入的电磁干扰的电力滤波器电路包括能检测供电系统电路是否正确连接的故障/状态检测电路。 感测电路根据供电系统是否正确连接的确定来控制开关电路。 当确定供电系统电路被正确连接时，感测电路激活第一开关电路以在电力滤波器电路的中性线和接地导体之间形成短路。 如果由感测电路检测到包括反极性接线的任何接线故障条件，则第一开关不被激活，并且在中性线和接地导体之间不形成短路。 感测电路控制第二开关电路，其在检测到反极性条件时校正极性，并且当检测到正确的极性条件时不改变极性。 感测电路可以与第一和第二开关电路组合使用。 在这种情况下，当检测到反极性条件以提供优异的共模电磁干扰抑制时，第一开关电路可以在电力滤波器电路的线路导体与接地导体之间形成短路。
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公开(公告)号：US5815388A
公开(公告)日：1998-09-29
申请号：US898481
申请日：1997-07-22
Applicant: Barry W. Manley , Keith H. Billings , Lance J. Collins
Inventor： Barry W. Manley , Keith H. Billings , Lance J. Collins
CPC classification number: H01J37/32027 , H01J2237/0206 , Y10T307/511 , Y10T307/839 , Y10T307/845 , Y10T307/931
Abstract: A polarity reversing circuit having energy compensation may comprise a first inductor connected between the first electrode and a negative terminal of a power supply. The positive terminal of the power supply is connected to the second electrode. A diode and a first capacitor are connected in series across the first inductor so that the cathode of the diode is connected to the first electrode. A second capacitor and a switching device are also connected in series across the first and second electrodes. A second inductor is connected between the switching device and the anode of the diode. A bi-directional converter is connected between the power supply and the second capacitor. The voltage polarity between the first and second electrodes may be reversed by actuating the switching device to switch between a non-conducting state and a conducting state. The voltage polarity may be returned to the normal polarity by again actuating the switching device to switch it from the conducting state to the non-conducting state. A bi-directional converter transfers electrical energy between the polarity reversing circuit and the power supply to compensate for variations in the amount of energy reflected by the electrodes during operation.
Abstract translation: 具有能量补偿的极性反转电路可以包括连接在电源的第一电极和负极端子之间的第一电感器。 电源的正极与第二电极连接。 二极管和第一电容器串联连接在第一电感器上，使得二极管的阴极连接到第一电极。 第二电容器和开关装置也串联连接在第一和第二电极上。 第二个电感连接在开关器件和二极管的阳极之间。 双向转换器连接在电源和第二电容器之间。 第一和第二电极之间的电压极性可以通过致动切换装置在非导通状态和导通状态之间切换来反转。 通过再次致动开关装置将电压极性从导通状态切换到非导通状态，可以将电压极性恢复到正常极性。 双向转换器在极性反转电路和电源之间传递电能，以补偿在操作期间由电极反射的能量的变化。
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公开(公告)号：US5682067A
公开(公告)日：1997-10-28
申请号：US667417
申请日：1996-06-21
Applicant: Barry W. Manley , Keith H. Billings
Inventor： Barry W. Manley , Keith H. Billings
CPC classification number: H01J37/32027 , H01J2237/0206 , Y10T307/511 , Y10T307/839 , Y10T307/845 , Y10T307/931
Abstract: A circuit for reversing a voltage polarity on a first electrode and a second electrode may comprise a first inductor connected between the first electrode and a negative terminal of an external power supply. The positive terminal of the power supply is connected to the second electrode. A diode and a first capacitor are connected in series across the first and second electrodes so that the cathode of the diode is connected to the first electrode. A second capacitor and a switching device are also connected in series across the first and second electrodes. A second inductor is connected between the switching device and the anode of the diode.
Abstract translation: 用于反转第一电极和第二电极上的电压极性的电路可以包括连接在第一电极和外部电源的负极之间的第一电感器。 电源的正极与第二电极连接。 二极管和第一电容器串联连接在第一和第二电极上，使得二极管的阴极连接到第一电极。 第二电容器和开关装置也串联连接在第一和第二电极上。 第二个电感连接在开关器件和二极管的阳极之间。
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公开(公告)号：US4425512A
公开(公告)日：1984-01-10
申请号：US367078
申请日：1982-04-09
Applicant: Keiji Tomooka , Makoto Ogawa , Hideo Ishiguro
Inventor： Keiji Tomooka , Makoto Ogawa , Hideo Ishiguro
CPC classification number: H04M19/08 , Y10T307/931
Abstract: A power supply system for supplying a d.c. current from a center equipment to a terminal device through a two-wire line, is capable of properly supplying the current for communicating purposes irrespective of the connection condition of the two-wire line and accurately stopping the supply of current to the terminal device in the non-communicating condition.
Abstract translation: 供电系统 通过双线线路从中心设备到终端设备的电流能够适当地提供用于通信目的的电流，而不管双线线路的连接状况如何，并且准确地停止向终端设备提供的电流 非沟通状况。
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Patent Agency Ranking
公开(公告)号：US4185561A
公开(公告)日：1980-01-29
申请号：US817981
申请日：1977-07-22
Applicant: Joseph Reymann
Inventor： Joseph Reymann
CPC classification number: A63H19/32 , Y10S104/01 , Y10T307/931
Abstract: An automatic switching system particularly adapted for railroad hobbyists whereby the complicated polarity switching usually required is eliminated. Apparatus is associated with each insulation point in a track section (block) to sense the direction of train motion and automatically conform the polarity of the next track block upon which the train will enter if the next block is of an opposite polarity from the prior block section from which the train has left.
Abstract translation: 一种特别适用于铁路爱好者的自动切换系统，由此消除了通常需要的复杂的极性切换。 设备与轨道部分（块）中的每个绝缘点相关联，以感测列车运动的方向，并且如果下一个块与先前的块相反极性，则自动地符合列车将进入的下一个轨道块的极性 列车离开的部分。
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公开(公告)号：US3671688A
公开(公告)日：1972-06-20
申请号：US3671688D
申请日：1970-12-22
Applicant: FUJI ELECTRIC CO LTD
Inventor： NITTA YOSHIO
CPC classification number: G02B6/442 , H01B17/005 , H01H33/423 , Y10T307/931
Abstract: An improved power circuit breaker comprising a pair of electrodes which are to be broken in the case of accidental trouble ; a condenser ; an electromagnetic coil coupled electromagnetically with an electrode of said pair electrodes, opening of said electrodes being attained by discharging charged energy of said condenser into said electromagnetic coil ; and an electromagnetic wave generating device provided at a high potential part ; in which said electromagnetic wave is passed through interior of a support insulator, and electric energy necessary for operating said electromagnetic wave generating device is supplied from a power source for charging said condenser, whereby an electromagnetic wave corresponding to line current is produced at a high potential part and said wave is converted to an electric signal by means of a receiver provided at an earth potential part, thus introducing said signal to various control devices.
Abstract translation: 一种改进的电力断路器，包括在意外故障的情况下被破坏的一对电极; 冷凝器 电磁线圈与所述对电极的电极电磁耦合，通过将所述冷凝器的充电能量放入所述电磁线圈中来实现所述电极的打开; 以及设置在高电位部的电磁波发生装置。 其中所述电磁波通过支撑绝缘体的内部，并且从用于对所述冷凝器充电的电源提供用于操作所述电磁波产生装置所需的电能，由此产生对应于线电流的电磁波，处于高电位 部分，并且所述波通过设置在接地电位部分的接收机转换成电信号，从而将所述信号引入各种控制装置。
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公开(公告)号：US3247445A
公开(公告)日：1966-04-19
申请号：US30031763
申请日：1963-08-06
Applicant: BENDIX CORP
Inventor： VAUGHAN CARROLL B
IPC: H02M7/06
CPC classification number: H02M7/068 , Y10T307/297 , Y10T307/839 , Y10T307/931
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公开(公告)号：US3103652A
公开(公告)日：1963-09-10
申请号：US14222261
申请日：1961-10-02
Applicant: HONEYWELL REGULATOR CO
Inventor： THORSHEIM JOSEPH O
IPC: G08B29/08
CPC classification number: G08B29/08 , Y10T307/931
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公开(公告)号：US2830259A
公开(公告)日：1958-04-08
申请号：US47470854
申请日：1954-12-13
Applicant: VICKERS INC
Inventor： FRANZ JR THOMAS J
IPC: H03F3/20
CPC classification number: H03F3/20 , Y10T307/931
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