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1. 发明申请

US20230099409A1 ELECTRICAL NETWORK 有权
公开(公告)号：US20230099409A1
公开(公告)日：2023-03-30
申请号：US17911444
申请日：2020-09-09
申请人： Siemens Aktiengesellschaft
发明人： Shivansh Batra , Thomas Beckert
IPC分类号： H02H3/36 , H02H1/00
摘要： An electrical network includes feed-in means, loads, and a distribution network located therebetween which includes at least one dynamic isolator and busbars. The feed-in means and the loads together with associated busbars are disposed in groups which can be electrically interconnected or disconnected by the at least one dynamic isolator. The at least one dynamic isolator monitors the voltage on the busbars adjacent thereto for a voltage difference. In a normal state without a voltage difference, the at least one dynamic isolator electrically disconnects the groups from one another, and in the event of a voltage difference between the busbars adjacent thereto, the at least one dynamic isolator electrically connects the groups to one another.

2. 发明授权

US11289892B2 Protection assistance device of multiple circuit breakers in low-voltage system 有权
公开(公告)号：US11289892B2
公开(公告)日：2022-03-29
申请号：US16966302
申请日：2018-11-21
申请人： LS ELECTRIC CO., LTD.
发明人： Sungsik Ham
IPC分类号： H02H3/28 , H02H3/36 , H02H7/26 , H02H3/04 , H02H1/00 , H02H3/05 , H04L45/18 , H04L45/48
摘要： The present disclosure provides a protection assistance device of multiple circuit breakers in a low-voltage system, in which protection assistance in both directions from the upper side to the lower side or from the lower side to the upper side is possible, and the number of wires for protection assistance between multiple upper/lower circuit breakers can be minimized. The protection assistance device includes at least one upper low-voltage circuit breaker; at least one middle low-voltage circuit breaker; at least one lower low-voltage circuit breaker; and a communication line which makes a communication connection between the low-voltage circuit breakers, wherein the low-voltage circuit breakers comprise a control unit for, when a trip operation of automatically breaking a circuit is performed, transmitting a communication packet for reporting a trip operation state to at least one predetermined circuit breaker among the circuit breakers through the communication line.

3. 发明授权

US4343027A Common suspension multi-line grounding protective relay 失效
标题翻译：普通悬挂多线接地保护继电器
公开(公告)号：US4343027A
公开(公告)日：1982-08-03
申请号：US152760
申请日：1980-05-23
申请人： Takaaki Kai
发明人： Takaaki Kai
IPC分类号： H02H3/16 , H02H3/36 , H02H3/38 , H02H7/26
CPC分类号： H02H3/165 , H02H3/36 , H02H7/267
摘要： The present invention discloses a grounding protective relay which compensates for zero phase circulation current between lines and zero phase vertical voltage drops generated by induction in a common suspension multiline system. The grounding protective relay comprises, substantially, a current detector which detects the inter-line differential currents, a filter which eliminates the positive phase component from the inter-line differential current of each pair of phases, calculating sections calculate the zero phase component, the ratio of the magnitudes and the phase difference, an grounded phase detector, and a selection section which selects, according to the phase which is grounded, a deriveration result from a calculating section, characterized in that, when a grounded fault occurs, the zero phase circulation current is selected and is compensated.
摘要翻译：本发明公开了一种接地保护继电器，其补偿线路之间的零相循环电流和在公共悬架多线系统中通过感应产生的零相垂直电压降。接地保护继电器基本上包括检测线间差动电流的电流检测器，从每对相的线间差动电流中消除正相分量的滤波器，计算部分计算零相分量，大小和相位差的比值，接地相位检测器和选择部分，其根据接地的相位选择来自计算部分的转折结果，其特征在于，当接地故障发生时，零相位循环电流被选择并被补偿。

4. 发明授权

US4228477A Circuit for monitoring the current distribution in parallel-connected converted branches 失效
标题翻译：用于监视并联转换分支中的电流分布的电路
公开(公告)号：US4228477A
公开(公告)日：1980-10-14
申请号：US8040
申请日：1979-01-31
申请人： Achim Claus , Heinrick Geissing , Willi Ulbrich
发明人： Achim Claus , Heinrick Geissing , Willi Ulbrich
IPC分类号： H02H7/10 , G01R19/10 , H02H3/36 , H02H7/12 , H02H3/28
CPC分类号： H02H7/12 , G01R19/10 , H02H3/36
摘要： A circuit arrangement for monitoring the current inbalance in two parallel-connected converter branches, each of which includes at least two series-connected converter valves. The anodes and cathodes, respectively, of adjacent converter valves in a given branch are connected together via cross-connections containing current transformers. A differential current transformer is provided at the output junction point of the two converter branches. Starting with the output signal of the differential current transformer, the exact current misdistribution for each adjacent converter valve pair is determined via summing amplifiers by adding the currents of the transverse transformers. A protective measure is triggered if a current misdistribution occurs.
摘要翻译：一种用于监测两个并联连接的转换器分支中的电流不平衡的电路装置，每个转换器分支包括至少两个串联连接的转换器阀。给定分支中相邻转换器阀的阳极和阴极分别通过包含电流互感器的交叉连接在一起。在两个转换器分支的输出接点处提供差分电流互感器。从差动电流互感器的输出信号开始，通过加上横向变压器的电流，通过求和放大器确定每个相邻转换器阀对的精确电流误差。如果发生当前的错误分配，则触发保护措施。

5. 发明授权

US4048664A Protective circuit for dynamic braking resistors 失效
标题翻译：动力制动电阻保护电路
公开(公告)号：US4048664A
公开(公告)日：1977-09-13
申请号：US703896
申请日：1976-07-09
申请人： Victor V. Kirilloff
发明人： Victor V. Kirilloff
IPC分类号： H02H3/36 , H02H5/08 , H02H3/04
CPC分类号： H02H5/086 , H02H3/36
摘要： A circuit for protecting a pair of dynamic brake resistors when either of two motors driving fans for cooling the resistors fails. A sensing circuit couples the terminal of the two motors to a switch circuit. The sensing circuit reduces the energy to the switch circuit which removes power to the resistors when the sensing circuit senses a failure in one of the motors.

6. 发明授权

US2993172A Voltage unbalance detector apparatus 失效
标题翻译：电压不平衡检测装置
公开(公告)号：US2993172A
公开(公告)日：1961-07-18
申请号：US78701059
申请日：1959-01-15
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： KARLICEK ROBERT F
IPC分类号： H02H3/36
CPC分类号： H02H3/36 , Y10T307/576

7. 发明授权

US1665313A Protective device for three-phase alternating-current units 失效
标题翻译：三相交流单元保护装置
公开(公告)号：US1665313A
公开(公告)日：1928-04-10
申请号：US63493123
申请日：1923-04-27
申请人： OTIS ELEVATOR CO
发明人： LEWIS JACOB D
IPC分类号： H02H3/36
CPC分类号： H02H3/36

8. 发明公开

US20230141892A1 Disconnecting Device and Power Supply Network for a Motor Vehicle 审中-公开
公开(公告)号：US20230141892A1
公开(公告)日：2023-05-11
申请号：US17917074
申请日：2021-03-02
申请人： Bayerische Motoren Werke Aktiengesellschaft
发明人： Thomas KLAWITTER , Christoph WEISSINGER
IPC分类号： B60R16/033 , G01R31/00 , G01R31/52 , H02H3/36 , H02H3/24
CPC分类号： B60R16/033 , G01R31/006 , G01R31/52 , H02H3/24 , H02H3/36
摘要： A disconnecting device for a power supply network of a motor vehicle is provided. The power supply network has a first sub-network and a second sub-network. The disconnecting device includes a switching element for switchably coupling the first sub-network to the second sub-network. The disconnecting device also includes a control unit, which is configured to control at least one state variable of the power supply network by actuating the switching element.

9. 发明授权

US07154722B1 Loop control for distribution systems 失效
标题翻译：配电系统的回路控制
公开(公告)号：US07154722B1
公开(公告)日：2006-12-26
申请号：US09946232
申请日：2001-09-05
申请人： James D. Stoupis , Marina V. Graham , Gregory J. Grote
发明人： James D. Stoupis , Marina V. Graham , Gregory J. Grote
IPC分类号： H02H3/24 , H02H3/36 , H02H7/26
CPC分类号： H02H3/06 , H02H7/26 , Y10T307/313 , Y10T307/391
摘要： The invention contemplates a technique for providing loop control on a faulted overhead or underground loop system, while preventing restored current from being fed or back fed into the fault. In particular, the invention provides a method, device, and system for restoring power to a faulted loop distribution system. The inventive method includes detecting a fault on the loop distribution system, interrupting current on the faulted part of the loop distribution system, isolating the faulted part of the loop distribution system from an unfaulted part of the loop distribution system, restoring current to the unfaulted part of the loop distribution system, and preventing the current from flowing to the faulted part of the loop distribution system. The method may further include providing the current to a load.
摘要翻译：本发明考虑了一种用于在故障的开销或地下回路系统上提供回路控制的技术，同时防止恢复的电流被馈送或反馈给故障。特别地，本发明提供了一种用于恢复故障回路分配系统的功率的方法，装置和系统。本发明的方法包括检测环路分配系统上的故障，中断环路分配系统故障部分的电流，将环路分配系统的故障部分与环路分配系统的未故障部分隔离，将电流恢复到未故障部分的环路分配系统，并防止电流流向环路分配系统的故障部分。该方法还可以包括向负载提供电流。

10. 发明授权

US4290007A High power and high voltage transistor control circuit 失效
标题翻译：大功率和高压晶体管控制电路
公开(公告)号：US4290007A
公开(公告)日：1981-09-15
申请号：US99378
申请日：1979-12-03
申请人： Bernard Fisher , Robert C. Storar
发明人： Bernard Fisher , Robert C. Storar
IPC分类号： G01R31/36 , G05F1/577 , H02H3/36 , G05F1/44
CPC分类号： H02H3/36 , B60L11/1812 , B60L3/0092 , G01R31/36 , G05F1/577 , Y02T10/7005 , Y02T10/7072 , Y02T90/127 , Y02T90/14 , Y10S323/906
摘要： A transistorized circuit is used for controlling the flow of current through a high voltage source, such as a battery. The high voltage source must be capable of being tapped at voltages less than the critical voltage of the transistors in the circuit, that is, that voltage at the maximum current through the transistor, above which the breakdown characteristics or maximum power dissipation ability of the transistor is exceeded. A plurality of transistor arrays are connected in series with each other, and each array is connected to a tap on the voltage source. Each array includes parallel connected transistors in sufficient quantity to achieve the desired current flow. The current through each array is made equal by control circuits so that no current flows through the tapped connection to the voltage source. The transistorized circuit may be used to control both the charging and the discharging rate of current through a high voltage battery.
摘要翻译：晶体管电路用于控制通过诸如电池的高电压源的电流流动。高电压源必须能够以低于电路中晶体管的临界电压的电压进行点击，也就是说，通过晶体管的最大电流下的电压，其中晶体管的击穿特性或最大功耗能力超过了多个晶体管阵列彼此串联连接，并且每个阵列连接到电压源上的抽头。每个阵列包括足够数量的并联连接的晶体管以实现期望的电流。通过每个阵列的电流被控制电路相等，使得没有电流流过与电压源的抽头连接。晶体管电路可用于控制通过高电压电池的电流的充电和放电速率。

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