Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031)
05/2014
05/08/2014WO2014067174A1 Low-voltage ac/dc control and protection for electrical appliance
05/08/2014WO2014029886A3 Circuit interruption device
05/08/2014US20140126098 Dc current interruption system able to open a dc line with inductive behaviour
05/08/2014US20140126096 Apparatus And Method For An Under-Voltage Protection Of An Electrical Network, Especially In An Aircraft Comprising A Fuel Cell
05/08/2014DE102012021558A1 Method for controlling and reading backup unit of motor vehicle, involves configuring control unit to control backup unit of vehicle according to change in state of securing elements so as to restore previous state of securing elements
05/07/2014EP2728693A1 Current differential protection
05/07/2014EP2728692A1 Apparatus and method for an under-voltage protection of an electrical network, especially in an aircraft comprising a fuel cell
05/07/2014EP2728691A1 Fault current detecting circuit
05/07/2014EP2728690A2 Voltage sensor contact for an electronic device
05/07/2014CN203589712U 一种短路保护电路 One kind of short-circuit protection
05/07/2014CN203589711U 用于印刷设备的防过压保护器 Overvoltage protection for anti-printing equipment
05/07/2014CN203589702U 用于冷却大型电动机的小型风机电动机控制电路 Small blower motor for cooling large motor control circuits
05/07/2014CN203589694U 漏电保护电路 Leakage protection circuit
05/07/2014CN203589693U 一种电力直流系统接地故障检测系统 A power DC system ground fault detection system
05/07/2014CN203589692U 小型剩余电流断路器电路 Small residual current circuit breaker
05/07/2014CN203589691U 一种能适应通电和运行两种状态漏电保护的漏电保护器 One kind can adapt to energize and run the two states leakage protection leakage protection
05/07/2014CN203589690U 电弧保护装置 Arc protection devices
05/07/2014CN203589689U 小型断路器欠压脱扣器电路 Mini circuit breaker undervoltage release
05/07/2014CN203589688U 一种电源过压保护器 A power supply overvoltage protection
05/07/2014CN203589687U 一种用于工业印刷机的电源过压保护电路 Power protection circuit for an industrial printing press
05/07/2014CN203589686U 一种用于工业印刷设备的保护电路 A protection circuit for industrial printing equipment
05/07/2014CN203589685U 适用于多种印刷设备的过压保护电路 Overvoltage protection circuit for a variety of printing equipment
05/07/2014CN203589684U 一种用于印刷设备的全自动保护电路 Automatic protection circuit for printing equipment
05/07/2014CN203589683U 一种用于工业印刷设备的电源保护电路 A power supply protection circuit for industrial printing equipment
05/07/2014CN203589682U 三相电源过流保护继电器 Three-phase power supply overcurrent relays
05/07/2014CN203589681U 采用阻容电路进行灭弧的车载高压熔断高阻隔离保护装置 RC circuit interrupter using onboard high-voltage fuse protection barrier from
05/07/2014CN203589680U 一种4-20mA电流环通信端口保护电路 One kind of 4-20mA current loop communication port protection circuit
05/07/2014CN203589679U 车载单相交流供电智能监控单元 Car-phase AC power supply intelligent monitoring unit
05/07/2014CN203589678U 适用于瞬时失电后再起动的再起动控制器 Suitable for instantaneous power failure before the start of the re-start controller
05/07/2014CN103782509A 用于检测同步发电机内部绕组故障的系统、计算机程序产品和方法 Winding fault detection system for internal synchronous generator, a computer program product and method
05/07/2014CN103782466A 通过短路电流可获性监测优化的电子跳闸线路断路器的保护协调 Coordinated through the short-circuit current protection monitoring to optimize the availability of electronic circuit breaker trip
05/07/2014CN103779965A 集成高压交流断路器控制器 Integrated high-voltage AC circuit breaker controller
05/07/2014CN103779856A 多断路器与正温型电阻组合分级升阻的故障限流器 Multi-breaker type resistor combination with positive temperature resistance classification liter fault current limiter
05/07/2014CN103779854A 一种新型电涌保护器 A new surge protector
05/07/2014CN103779833A 直流漏电流检测与保护电路及检测与保护方法 DC leakage current detection and protection circuit and method for detection and protection
05/07/2014CN103779832A 一种用于低压线路的防窃电方法 An anti-theft method for low-voltage lines
05/07/2014CN103779831A 基于单片机的三相自复式过、欠压保护器 Microcontroller-based three-phase self-duplex over and undervoltage protection
05/07/2014CN103779830A 一种新型电涌保护器 A new surge protector
05/07/2014CN103779829A 负载保护电路 Load protection circuit
05/07/2014CN103779828A 基于人工过零的双向直流开断电路及其开断方法 Zero-based artificial bidirectional DC circuit breaking and breaking methods
05/07/2014CN103779827A 一种超高压输电线路二次自动重合闸方法 One kind of secondary transmission line method of automatic reclosing EHV
05/07/2014CN103779826A 配电房自动送电装置 Automatic power transmission and distribution equipment room
05/07/2014CN103770650A 机车牵引和辅助系统一体化接地保护装置 Traction and auxiliary systems integration grounding protection devices
05/07/2014CN102636705B 一种远程漏电保护器故障及交流接触器堵塞或故障判断装置及其分析方法 A long-range leakage protection fault and AC contactor blockage or malfunction judging means and Analysis Methods
05/07/2014CN102573182B 一种驱动保护电路及灯具 A drive protection circuit and lamps
05/07/2014CN102545155B 一种太阳能电池有源防反接与保护电路 A solar cell with an active anti-reverse protection circuit
05/07/2014CN102263396B 保护元件及电子装置 Protection devices and electronic devices
05/07/2014CN102222884B 两步探测绝缘栅双极型器件短路自保护电路的保护方法 Two-step detection of insulated gate bipolar device short circuit protection method of self-protection circuitry
05/07/2014CN102157910B 一种检测装置与方法及使用该装置或方法的负载 An apparatus and method for detecting a load of the device and the use or method
05/07/2014CN102130440B 一种a型漏电保护器的专用集成电路芯片 One kind of a leakage protector of ASIC chips
05/07/2014CN102124620B 配置独立自供电数字控制继电器的方法 Self-powered configuration independent digital control relays
05/07/2014CN101849336B 用于管理用以分配电能的网络中的故障事件的方法以及相应的电子保护单元 Used to manage the network for distribution of electric energy in the event of a fault and the corresponding electronic protection unit
05/07/2014CN101741054B 限制电流的方法及其应用电路 Limitations of current methods and their application circuit
05/07/2014CN101494370B 断路器电子跳闸单元个性化模块 Breaker electronic trip unit personalization module
05/06/2014US8718833 Automated systems and methods for controlling localized load conditions to extend electrical distribution system component life
05/06/2014US8718830 Optimized protection coordination of electronic-trip circuit breaker by short circuit current availability monitoring
05/06/2014US8717728 High voltage electronic switches for controlling direct current arcs in high voltage direct current systems and methods of operating the same
05/06/2014US8717727 Power supply control apparatus including overcurrent detection circuit
05/06/2014US8717725 Dual-comparator restricted earth fault protection
05/06/2014US8717724 Diode for electrostatic protection
05/06/2014US8717721 High impedance fault isolation system
05/06/2014US8717719 Inverter, power generation system and method of operating a power generation system
05/06/2014US8717718 Electrical load control with fault protection
05/06/2014US8717717 High efficiency power regulator and method
05/06/2014US8717716 Device and method to break the current of a power transmission or distribution line and current limiting arrangement
05/06/2014US8717036 Method and apparatus for detecting a phase-to-earth fault
05/02/2014CA2831768A1 Modular high voltage sensing unit
05/01/2014WO2014065484A1 Device for automatically cutting off high-current power
05/01/2014WO2014064514A1 Failure prediction in a rotating device
05/01/2014WO2014063663A1 Overload and over-temperature early warning protection device having manual reset
05/01/2014US20140118875 Control and monitoring unit for a circuit interrupter electronic trip unit and system including same
05/01/2014US20140118873 Power module and apparatus for preventing malfunction, and method of controlling thereof
05/01/2014US20140118872 Protection circuit and gate driving circuit for semiconductor switching device
05/01/2014US20140117912 System For Detecting Internal Winding Faults Of A Synchronous Generator, Computer Program Product And Method
04/2014
04/30/2014EP2725599A1 An electromechanical switching circuit with memory
04/30/2014EP2724437A1 Improved reliability in semiconductor device control
04/30/2014EP2724436A1 State monitoring or diagnostics system
04/30/2014DE102013111873A1 Verfahren und Vorrichtung zumTesten einer elektronischen Auslöseeinrichtung Method and apparatus zumTesten an electronic trip device
04/30/2014DE102012110236A1 Separation switching device for power supply unit e.g. fuel cell of electric forklift truck, has circuit breaker opened or closed by vehicle control system of industrial truck over switching terminal of evaluation electronic system
04/30/2014DE102012021341A1 Modular device for evaluating one or more conditions of cabinet element e.g. receiving device, has bus connection units to forward detected display and operating parameters of switch cabinet construction portions to evaluation device
04/30/2014CN203574632U Control signal isolation protection terminal block
04/30/2014CN203574359U Wide-voltage two-way indication bus isolator
04/30/2014CN203574350U Intelligent residual current protection device
04/30/2014CN203574349U Vehicle power supply security control device
04/30/2014CN203574348U Power supply management chip circuit applied to electronic product
04/30/2014CN203574347U Overvoltage protective circuit for testing mobile game
04/30/2014CN203574346U Current limiting protection circuit
04/30/2014CN203574345U Too-small current automatic power-off protection circuit and charger
04/30/2014CN203573242U Overvoltage protection circuit of computer power supply
04/30/2014CN203572873U Low-cost overcurrent protection circuit for current detection
04/30/2014CN203572851U Electric meter box system
04/30/2014CN103762572A Electric transmission line power frequency deviation component current differential protection method based on direction coefficient
04/30/2014CN103762549A Self-reset overvoltage and undervoltage protector
04/30/2014CN103762548A Short-circuit protection circuit for low-voltage direct current system
04/30/2014CN103762547A Modular high-voltage vacuum direct current on-off device based on artificial zero crossing
04/30/2014CN103762546A Circuit breakers
04/30/2014CN103762545A Multi-stage controllable current protection circuit
04/30/2014CN103762544A Automatic switching-on controller
04/30/2014CN103762543A Extra-high voltage DC protection voltage reference value automatic switchover implementation method
04/30/2014CN103760513A Electricity meter data collection safety power supply platform
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