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公开(公告)号：US12034294B2
公开(公告)日：2024-07-09
申请号：US17137848
申请日：2020-12-30
发明人： Richard Fields
摘要： The disclosure describes a system for monitoring and mitigating damage to electrical utility structures and the surrounding environment. In some embodiments, the system includes fire boxes, arc sensors, angle switches, and disconnect switches configured to generate alert signals when a hazard is detected. In some embodiments, the system includes cameras configured to detect a hazard such as a fire or moving object. In some embodiments, the system includes light transmitters and light receivers positioned at a predetermined location away from power lines to detect objects that interrupt a line of site. In some embodiments, the system can electrically isolate a power line before a detected hazard impacts a power line.
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公开(公告)号：US20230221380A1
公开(公告)日：2023-07-13
申请号：US18009641
申请日：2021-10-13
发明人： John J. SHEA , Pawan Kumar MODI
摘要： A fault managed power system (FMPS) and method monitors and detects fault currents in PoE, PFC, and other cables that indicate likely human contact with cable conductors. The level of current detected through the human body combined with a fast response time limits the energy to prevent a person from experiencing ventricular fibrillation, resulting in a so-called touch-safe level. For overload and short-circuit fault protection, the system automatically and immediately removes power from the cables. This limits the amount of energy provided into the fault, thereby maintaining touch-safe operation and also preventing electrical fires and system component protection. The system/method can accomplish this even at voltage levels considerably higher than existing touch-safe standards, for example, Class 2 (below 50 Vac) power supplies. Such a system/method allows the amount of power in applications like PoE and PFC to be safely increased to levels much greater than the current maximum (100 W).
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公开(公告)号：US20180310370A1
公开(公告)日：2018-10-25
申请号：US15497127
申请日：2017-04-25
申请人： ENERGY FOCUS, INC.
摘要： A circuit for mitigating electric shock including an external impedance detection circuit and a test and holdoff circuit. The external impedance detection circuit detects a presence of an external impedance, such as by detecting a relative change in voltage from a startup condition and a test condition. The test and holdoff circuit inhibits operation of a power converter which delivers power to be consumed by a load. The startup condition is defined by mains power applied to the circuit with negligible power consumed by a load. The test condition is defined by non-zero power delivered to the load. According to another aspect, the external impedance detection circuit measures an input voltage using a high input power which is greater than a shock hazard threshold at a duration less than a threshold time duration and determines the presence of the external impedance based on low pass filters having different time constants.
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公开(公告)号：US09508237B1
公开(公告)日：2016-11-29
申请号：US14501309
申请日：2014-09-30
申请人： Eusebio Mercado , Rafael Castillo
发明人： Eusebio Mercado , Rafael Castillo
摘要： The personal electrical injury protection device includes a first transmitter, a first receiver, and a second receiver. The first transmitter is adapted to be worn on an end user. The first transmitter is in wired connection with at least one electrical sensor. The at least one electrical sensor is adapted to be attached to a limb of said end user, and is able to detect a change in voltage, and upon doing so shall signal the first transmitter. The first receiver is in wireless communication with the first transmitter, and includes a speaker, and at least one light. The second receiver is adapted to turn off the main circuit breaker in order to stop electricity to be transmitted to all applicable circuits, and of which an end user has come into contact.
摘要翻译： 个人电气伤害保护装置包括第一发射器，第一接收器和第二接收器。 第一发射器适于佩戴在终端用户身上。 第一个发射器与至少一个电传感器有线连接。 所述至少一个电传感器适于附接到所述最终用户的肢体，并且能够检测电压的变化，并且在这样做时将向第一发射器发信号。 第一接收机与第一发射机无线通信，并且包括扬声器和至少一个光。 第二接收器适于关闭主断路器，以便停止向所有适用电路传输电能，并且终端用户已经接触。
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公开(公告)号：US20160245847A1
公开(公告)日：2016-08-25
申请号：US14831015
申请日：2015-08-20
发明人： Guenther HAAS , Helmut LIPP
IPC分类号： G01R19/165 , G01R31/12 , H02H3/087 , G01R31/28
CPC分类号： G01R19/16538 , G01R31/025 , G01R31/1227 , G01R31/28 , H02H3/087 , H02H3/16 , H02H3/332 , H02H3/334 , H02H5/12 , H02H7/1216
摘要： The invention relates to a method and a device for detecting fault currents in a regulated DC intermediate circuit having an active power factor correction.
摘要翻译： 本发明涉及一种用于检测具有有功功率因数校正的稳压直流中间电路中的故障电流的方法和装置。
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公开(公告)号：US09401596B2
公开(公告)日：2016-07-26
申请号：US12965350
申请日：2010-12-10
申请人： Jörg Becker , Stefan Koller
发明人： Jörg Becker , Stefan Koller
CPC分类号： H02H5/12 , F02D41/2096 , F02D41/22 , F02D2041/2086
摘要： The invention relates to a device for actuating actuators in a motor vehicle having an at least partially metallic housing (MG) in which an electric circuit is arranged, which has at least one high-voltage-generating circuit (HES) for generating an output voltage (UHS) which is higher than a voltage which is considered safe for people, from the on-board motor vehicle power system voltage. The electric circuit has a monitoring circuit (UES) which has a first input (E1) which is connected to a reference voltage (Vref), and has a second input (E2) which is connected to the at least partially metallic housing (MG), and the output (A) of which is operatively connected to the high-voltage-generating circuit (HSS) in such a way that in the case of a differential voltage at the two inputs (E1, E2) which is higher than a predefined value, the high-voltage-generating circuit (HSS) is deactivated or the output voltage (UHS) thereof is limited to a value of at maximum the voltage which is considered safe for people.
摘要翻译： 本发明涉及一种用于致动机动车辆的致动器的装置，其具有至少部分金属外壳（MG），其中布置有电路，该电路具有至少一个用于产生输出电压的高压发生电路（HES） （UHS），高于车载电力系统电压对人们认为安全的电压。 电路具有监视电路（UES），该监视电路具有连接到参考电压（Vref）的第一输入端（E1），并具有连接至该至少部分金属外壳（MG）的第二输入端（E2） ，并且其输出（A）可操作地连接到高电压发生电路（HSS），使得在两个输入端（E1，E2）处的差分电压高于预定义的电压 值时，高电压发生电路（HSS）被去激活，或者其输出电压（UHS）被限制为对人们认为是安全的电压的最大值。
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公开(公告)号：US20160025794A1
公开(公告)日：2016-01-28
申请号：US14809787
申请日：2015-07-27
发明人： Hyo Sung KIM
IPC分类号： G01R31/02
CPC分类号： G01R31/025 , H02H3/33 , H02H5/12
摘要： Provided is an apparatus and method for detecting leakage current in DC applications, capable of separately operating depending on leakage current patterns of a human body and a facility in a TN grounding system. The apparatus for detecting the leakage current is a leakage current detector in a DC distribution system of the TN grounding manner and includes a leakage current detecting unit configured to detect a current flow between a DC power unit and a load to detect whether the leakage current is generated and a level of the leakage current and a leakage current determining unit configured to determine that the cause of the leakage current is either an electric shock to a human or a facility ground fault according to a rate of hourly change in the level of the leakage current detected in the leakage current detecting unit.
摘要翻译： 本发明提供一种用于检测直流应用中的泄漏电流的装置和方法，能够根据人体的泄漏电流模式和TN接地系统中的设施单独运行。 用于检测泄漏电流的装置是TN接地方式的直流配电系统中的漏电流检测器，包括泄漏电流检测单元，其被配置为检测直流电力单元和负载之间的电流，以检测泄漏电流是否为 产生的泄漏电流水平和泄漏电流确定单元，被配置为根据泄漏水平的小时变化率确定泄漏电流的原因是对人类的电击或设备接地故障 在漏电流检测单元中检测到的电流。
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公开(公告)号：US20130049706A1
公开(公告)日：2013-02-28
申请号：US13598552
申请日：2012-08-29
申请人： Kuo-Chien Huang , Shun-Chin Chou , Ming-Chang Tsou
发明人： Kuo-Chien Huang , Shun-Chin Chou , Ming-Chang Tsou
IPC分类号： H02J7/00
CPC分类号： H02M1/32 , H02H5/12 , H02H7/16 , H02M2001/322
摘要： A circuit for discharging an X capacitor includes an AC detection unit, a reset unit, a counter, and a discharging unit. The AC detection unit is coupled to two terminals of the X capacitor through a pin. The AC detection unit has a plurality of reference levels for detecting a DC voltage level according to the plurality of reference levels, and outputting a detection signal. The reset unit is coupled to the AC detection unit for generating a reset signal according to the detection signal. The counter is coupled to the reset unit for being reset according to the reset signal. When the counter does not receive the reset signal within a first predetermined time, the counter generates a turning-on signal. The discharging unit is coupled to the counter for discharging the X capacitor according to the turning-on signal.
摘要翻译： 用于放电X电容器的电路包括AC检测单元，复位单元，计数器和放电单元。 AC检测单元通过一个引脚耦合到X电容的两个端子。 AC检测单元具有多个参考电平，用于根据多个参考电平检测DC电压电平，并输出检测信号。 复位单元耦合到AC检测单元，用于根据检测信号产生复位信号。 计数器耦合到复位单元，以根据复位信号进行复位。 当计数器在第一预定时间内没有接收到复位信号时，计数器产生接通信号。 放电单元耦合到计数器，以根据导通信号对X电容器进行放电。
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9.发明授权Leakage current shunt in an electrical power distribution system utilizing solid state relays 有权在使用固态继电器的配电系统中泄漏电流分流公开(公告)号：US07538454B2
公开(公告)日：2009-05-26
申请号：US11475103
申请日：2006-06-27
申请人： Wenjiang Yu , Zhenning Z. Liu , Daniel G. Filimon , Boris Plivcic
发明人： Wenjiang Yu , Zhenning Z. Liu , Daniel G. Filimon , Boris Plivcic
CPC分类号： H02H9/041 , H02H5/12 , Y10T307/747 , Y10T307/865 , Y10T307/944
摘要： The invention provides an apparatus for shunting leakage current of a solid state switching device (SSSD) (10). The apparatus selectively provides a shunt pathway to divert current away from the output load based on the switching state of the SSSD. The apparatus may include a shunt impedance component (14) connected to the SSSD, and a switching element (16) for selectively connecting the other end of the shunt impedance component to ground based on the switching state of the SSSD. Accordingly, when the SSSD is turned off, the switching element is switched to a state that connects the shunt impedance component to ground, thereby shunting leakage current.
摘要翻译： 本发明提供一种用于分流固态开关装置（SSSD）（10）的漏电流的装置。 该装置根据SSSD的切换状态选择性地提供分流路径以将电流从输出负载转移出去。 该装置可以包括连接到SSSD的分流阻抗部件（14）和用于基于SSSD的开关状态选择性地将分流阻抗部件的另一端连接到地的开关元件（16）。 因此，当SSSD断开时，开关元件切换到将并联阻抗分量连接到地的状态，从而分流泄漏电流。
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10.发明申请Leakage current shunt in an electrical power distribution system utilizing solid state relays 有权在使用固态继电器的配电系统中泄漏电流分流公开(公告)号：US20080197699A1
公开(公告)日：2008-08-21
申请号：US11475103
申请日：2006-06-27
申请人： Wenjiang Yu , Zhenning Z. Liu , Daniel G. Filimon , Boris Plivcic
发明人： Wenjiang Yu , Zhenning Z. Liu , Daniel G. Filimon , Boris Plivcic
CPC分类号： H02H9/041 , H02H5/12 , Y10T307/747 , Y10T307/865 , Y10T307/944
摘要： The invention provides an apparatus for shunting leakage current of a solid state switching device (SSSD) (10). The apparatus selectively provides a shunt pathway to divert current away from the output load based on the switching state of the SSSD. The apparatus may include a shunt impedance component (14) connected to the SSSD, and a switching element (16) for selectively connecting the other end of the shunt impedance component to ground based on the switching state of the SSSD. Accordingly, when the SSSD is turned off, the switching element is switched to a state that connects the shunt impedance component to ground, thereby shunting leakage current.
摘要翻译： 本发明提供一种用于分流固态开关装置（SSSD）（10）的漏电流的装置。 该装置根据SSSD的切换状态选择性地提供分流路径以将电流从输出负载转移出去。 该装置可以包括连接到SSSD的分流阻抗部件（14）和用于基于SSSD的开关状态选择性地将分流阻抗部件的另一端连接到地的开关元件（16）。 因此，当SSSD断开时，开关元件切换到将并联阻抗分量连接到地的状态，从而分流泄漏电流。
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