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公开(公告)号：US11843241B2
公开(公告)日：2023-12-12
申请号：US17396451
申请日：2021-08-06
发明人： Yanfei Yu , Zhifei Zhang , Xiaoxun Li
摘要： An intelligent switch device and a power generation system are provided. The intelligent switch device includes a first power port, a second power port, a switch unit and a control unit. A first end of a switch unit is connected to a first power supply via a first power port, and a second end of the switch unit is connected to a second power supply via a second power port. The control unit is configured to control the switch unit to be turned on for a first time period when the first power supply is in abnormal condition, where the abnormal condition causes the switch unit to be tripped. The first time period is greater than or equal to a time period required for a device to respond to the abnormal condition.
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公开(公告)号：US20190249543A1
公开(公告)日：2019-08-15
申请号：US15893225
申请日：2018-02-09
申请人： Jianying Chu
发明人： Jianying Chu
CPC分类号： E21B47/12 , E21B17/003 , E21B47/00 , G05B23/0208 , G05B2219/25004 , H02H1/0007 , H02H1/0092 , H02H3/105 , H04L12/40013
摘要： A reconfigurable network for interconnecting tools in a bottom hole assembly is disclosed. The network includes nodes that have reconfigurable switches that can be configured to provide a conductive path for the bus through the node, connect a terminator to the bus, and/or connect a tool to the bus. The exact configuration (i.e., states) of the switches in each node may be automatically selected based on a detected fault in a tool attached to a node and/or the state of other switches in the node or/a specific request is received. Various node embodiments and a method and circuit for automatically disconnecting a tool from the network in response to a tool fault are further disclosed.
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公开(公告)号：US20170338642A1
公开(公告)日：2017-11-23
申请号：US15671164
申请日：2017-08-08
申请人： ABB Schweiz AG
发明人： Florian Zowislok , Dirk Lill
CPC分类号： H02M3/33546 , H02H1/043 , H02H3/087 , H02H3/105 , H02H9/002 , H02H9/008 , H02M1/08 , H02M2001/0009
摘要： A method and a device for supplying energy to a low-voltage load using an electronic power supply device. The method involves: a) setting the power supply device to be able to provide an output current to the low-voltage load up to a specified peak current value upon demand; b) monitoring the output current (IL) provided to the low-voltage load by the electronic power supply device to detect an increase of IL over a threshold (IN) which is lower than the peak current value, c) if an increase of IL to an increased output current value higher than IN is detected, detecting the increased IL value and ascertaining an output current pulse duration (tPulse) based on the increased current value; d) providing IL at the level of the increased current value for the duration of the ascertained tPulse; and e) providing the IL at the level of IN after tPulse has expired.
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公开(公告)号：US09793709B2
公开(公告)日：2017-10-17
申请号：US14497062
申请日：2014-09-25
申请人： The Boeing Company
发明人： Gregory H. Smith , Son T. Vo , Kenneth A. Seidner , Troy Cobb , Shamoon Sikora
CPC分类号： H02H11/00 , H02H3/105 , H02M1/32 , H02M3/156 , H02M2001/0009
摘要： Embodiments described herein provide short circuit detection capabilities for current drivers. One embodiment includes a controller and a current driver. The current driver includes a power switch circuit that couples a supply rail to a high side of a load in response to receiving a drive signal. The current driver further includes a continuity circuit that couples the supply rail to the high side and indicates to the controller whether a first current flow to the high side exceeds a first threshold. The current driver further includes a current sense circuit that couples a low side of the load to ground and indicates to the controller whether a second current flow from the low side exceeds a second threshold. The controller identifies, based on the first current flow, the second current flow, and the drive signal, a plurality of short circuit conditions that may exist at the current driver.
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公开(公告)号：US09343895B2
公开(公告)日：2016-05-17
申请号：US13872554
申请日：2013-04-29
申请人： ABB TECHNOLOGY LTD
发明人： Niraj Suthar , Vishal H. Shah , Priyank Desai , Mohammed Y. Shafi
摘要： A protection feature is disclosed for a self powered protection relay having, for example, sensitive earth fault protection. Protection can be achieved in tandem with optimal power on trip time and with integrated logic for inrush discrimination. The self supplied protection relay can include a current processing module to measure and evaluate line current to generate a trip signal, and to suppress inrush current to block earth fault detection during an inrush condition and thereby increase sensitivity of fault detection.
摘要翻译： 对于具有例如敏感接地故障保护的自供电保护继电器公开了一种保护特征。 可以通过最佳跳闸时间功率和集成逻辑来实现浪涌保护。 自供电保护继电器可以包括用于测量和评估线电流以产生跳闸信号的当前处理模块，并且在浪涌状态期间抑制浪涌电流阻止接地故障检测，从而提高故障检测的灵敏度。
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公开(公告)号：US20160094025A1
公开(公告)日：2016-03-31
申请号：US14497062
申请日：2014-09-25
申请人： The Boeing Company
发明人： Gregory H. Smith , Son T. Vo , Kenneth A. Seidner , Troy Cobb , Shamoon Sikora
CPC分类号： H02H11/00 , H02H3/105 , H02M1/32 , H02M3/156 , H02M2001/0009
摘要： Embodiments described herein provide short circuit detection capabilities for current drivers. One embodiment includes a controller and a current driver. The current driver includes a power switch circuit that couples a supply rail to a high side of a load in response to receiving a drive signal. The current driver further includes a continuity circuit that couples the supply rail to the high side and indicates to the controller whether a first current flow to the high side exceeds a first threshold. The current driver further includes a current sense circuit that couples a low side of the load to ground and indicates to the controller whether a second current flow from the low side exceeds a second threshold. The controller identifies, based on the first current flow, the second current flow, and the drive signal, a plurality of short circuit conditions that may exist at the current driver.
摘要翻译： 本文描述的实施例提供了用于当前驱动器的短路检测能力。 一个实施例包括控制器和当前驱动器。 电流驱动器包括电源开关电路，其响应于接收驱动信号将电源轨耦合到负载的高侧。 电流驱动器还包括连接电路，其将供电轨耦合到高侧，并向控制器指示到高侧的第一电流是否超过第一阈值。 电流驱动器还包括电流感测电路，其将负载的低侧耦合到地，并向控制器指示来自低侧的第二电流是否超过第二阈值。 控制器基于第一电流来识别可能存在于当前驱动器上的多个短路状况的第二电流和驱动信号。
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公开(公告)号：US20150311697A1
公开(公告)日：2015-10-29
申请号：US14792211
申请日：2015-07-06
申请人： Emprimus, LLC
发明人： FREDERICK R. FAXVOG , WALLACE JENSEN , TERRANCE R. NOE , CRAIG EID , DAVID BLAKE JACKSON , GREG FUCHS , GALE NORDLING
摘要： Systems and methods for protecting an electrical component in an alternating current system that includes a transformer are disclosed. In one aspect, a circuit includes a switch assembly connected between a transformer neutral of a transformer and a ground and having an open position and a closed position. In normal operation, the switch remains in a closed position. The circuit further includes a DC blocking component positioned in parallel with the switch assembly and connected between the transformer neutral and the ground, a voltage probe connected between the transformer neutral and ground and configured to monitor an instantaneous voltage level at the transformer neutral, and a control circuit configured to control the switch assembly, the control circuit including a sensor configured to actuate the switch assembly to an open position at least upon detection of a harmonic signal in at least one phase of the transformer or a predetermined threshold of DC or quasi DC current between the transformer neutral and the ground.
摘要翻译： 公开了用于保护包括变压器的交流系统中的电气部件的系统和方法。 在一个方面，一种电路包括连接在变压器的变压器空档与地面之间并具有打开位置和闭合位置的开关组件。 在正常操作中，开关保持在关闭位置。 电路还包括与开关组件并联设置并连接在变压器中性线和地之间的直流阻塞部件，连接在变压器中性线和地之间并被配置为监视变压器中性点处的瞬时电压电平的电压探头，以及 控制电路被配置为控制开关组件，所述控制电路包括被配置为至少在检测到所述变压器的至少一个相位中的谐波信号或DC或准DC的预定阈值时将所述开关组件致动到打开位置的传感器 变压器中性点与地之间的电流。
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公开(公告)号：US20150270697A1
公开(公告)日：2015-09-24
申请号：US14730785
申请日：2015-06-04
申请人： ABB RESEARCH LTD
发明人： Hariram SATHEESH , Bernhard DECK , GN KRISHNAMOORTHY , Mallikarjun KANDE , Sanjeev KOUL , Naman RAVAL , Nayan SHAH , Vishal H. SHAH
摘要： A protection relay is disclosed that generates a trip signal to operate a circuit breaker in case of a fault condition. A first module provides measurement and analysis of power parameters of the power line connecting the power equipment that is being protected, the protection being provided by generating a first trip signal for operating a circuit breaker connected in the power line. One or more second modules can boost performance of the protection relay by measurement and analysis of power parameters-to generate a second trip signal for operating a circuit breaker connected in the power line. The first trip signal and the second trip signal are logically combined to generate a trip signal that operates the circuit breaker.
摘要翻译： 公开了一种保护继电器，其在故障情况下产生跳闸信号以操作断路器。 第一模块提供连接被保护的电力设备的电力线的功率参数的测量和分析，通过产生用于操作连接在电力线路中的断路器的第一跳闸信号来提供保护。 一个或多个第二模块可以通过测量和分析功率参数来提高保护继电器的性能，以产生用于操作连接在电力线路中的断路器的第二跳闸信号。 第一跳闸信号和第二跳闸信号被逻辑地组合以产生操作断路器的跳闸信号。
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公开(公告)号：US08649130B2
公开(公告)日：2014-02-11
申请号：US13025210
申请日：2011-02-11
CPC分类号： H02H7/0838 , G01R19/10 , H02H1/0038 , H02H3/105 , H02P29/0241 , H02P29/027
摘要： A motor driving apparatus capable of detecting during operation a ground fault and a phase-to-phase short circuit by distinguishing one from the other is provided while minimizing an increase in cost. The sum of three-phase AC currents supplied from a three-phase AC power supply to an AC/DC converter is detected by a current sensor. When overcurrent is detected by an overcurrent detector, if the sum of the currents detected by the current sensor is zero, it is determined that the fault is a phase-to-phase short circuit, but if the sum is not zero, it is determined that the fault is a ground fault.
摘要翻译： 提供一种电动机驱动装置，其能够在操作期间通过将接地故障和相间短路彼此区分来检测，同时最小化成本增加。 通过电流传感器检测从三相AC电源向AC / DC转换器提供的三相AC电流的总和。 当由过电流检测器检测到过电流时，如果由电流传感器检测到的电流之和为零，则确定故障是相间短路，但是如果并非零，则确定 故障是接地故障。
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公开(公告)号：US08189307B2
公开(公告)日：2012-05-29
申请号：US12732375
申请日：2010-03-26
申请人： Jun Bae Lee , Shin Yon Jo , Seung Gil Lee , Ki Heung Chang
发明人： Jun Bae Lee , Shin Yon Jo , Seung Gil Lee , Ki Heung Chang
IPC分类号： H02H3/16
CPC分类号： H02H3/33 , G01R31/025 , G01R31/1272 , H02H1/0015 , H02H3/044 , H02H3/105
摘要： A composite electric circuit breaker, and method thereof, is configured to detect signals regarding arc faults, overcurrent, and earth leakage. Arcs and electric currents are detected by a current transformer and earth leakage is detected by a zero phase current transformer. A variation of electric current, the number of arcs which are generated per a unit time, a present electric current value, and electric current earth leakage are combined to judge whether arc faults occur to then interrupt an electric power supply. Temperature is measured on a printed circuit board, and if temperature rise occurs, the electric power supply is interrupted, and an interruption cause is displayed. Electric accidents and occurrence of fires are prevented simultaneously and more accurately. The interruption causes can be confirmed, analyzed and externally monitored through a network, to thus maximize efficiency of electric management.
摘要翻译： 复合电路断路器及其方法被配置为检测关于电弧故障，过电流和接地泄漏的信号。 电流和电流由电流互感器检测，漏电流由零相电流互感器检测。 组合电流变化，每单位时间产生的电弧数，当前电流值和电流接地泄漏，判断电弧故障是否发生，然后中断电源。 在印刷电路板上测量温度，如果发生温度升高，则电源中断，并显示中断原因。 同时，更准确地防止电气事故和火灾发生。 中断原因可以通过网络进行确认，分析和外部监控，从而最大限度地提高电力管理的效率。
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