| Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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| 06/18/2014 | CN103872669A Remote tripping method of electric transmission line |
| 06/18/2014 | CN103872668A Middle switch interlocking method in three-seconds wiring mode based on breaker auxiliary protection |
| 06/18/2014 | CN103872667A Circuit current differential protection method preventing abnormal large number of combination unit |
| 06/18/2014 | CN103872666A Load and single phase ground fault identification method based on voltage plane |
| 06/18/2014 | CN103872665A Power distribution network integrated protection method suitable for access of distributed power supplies |
| 06/18/2014 | CN103872664A Method for realizing line interphase fault voltage protection by utilizing voltage actual measurement before fault |
| 06/18/2014 | CN103872663A Single-phase earth fault relay protection method based on before-fault voltage actual-measurement line |
| 06/18/2014 | CN103872662A Network type protection method for hybrid networking based on closed-loop model operation |
| 06/18/2014 | CN103872661A Network type protection method based on open-loop mode operation of power network |
| 06/18/2014 | CN103872660A Network type protection method based on closed-loop mode operation of power network |
| 06/18/2014 | CN103872659A Method and system for current differential protection |
| 06/18/2014 | CN103872658A Multifunctional self-recovery over-voltage and under-voltage protector |
| 06/18/2014 | CN103872657A Metal loop wire longitudinal differential protection method in parallel-connection ice melting mode |
| 06/18/2014 | CN103872656A Distributive bus fast protection realization method for intelligent transformer substation |
| 06/18/2014 | CN103872655A Charging battery protecting circuit and control method of protecting circuit |
| 06/18/2014 | CN103872654A Multiple-protection constant-power electronic transformer |
| 06/18/2014 | CN103872653A Protective circuit for switching power supply |
| 06/18/2014 | CN103872652A Automatic protection three-phase knife switch of motor |
| 06/18/2014 | CN103872651A Power-driven tool control circuit and control method thereof |
| 06/18/2014 | CN103872650A Novel single-phase motor protection switch |
| 06/18/2014 | CN103872649A Overload protection method used for electric tool and circuit thereof |
| 06/18/2014 | CN103872648A Overload protection method used for electric tool and circuit thereof |
| 06/18/2014 | CN103872647A Multiloop intelligent motor protector |
| 06/18/2014 | CN103872646A Method for preventing wrong differential protection of motor and transformer caused by induced inrush current |
| 06/18/2014 | CN103872645A Transformer backup protection method in six-phase power transmission system |
| 06/18/2014 | CN102882380B Multi-path output flyback power supply with output short-circuit protection function and protection method |
| 06/18/2014 | CN102510623B Emergency light circuit and system |
| 06/18/2014 | CN102427223B Method for judging lock by zero sequence voltage and current |
| 06/18/2014 | CN102307035B Novel management and control system of mining lithium iron phosphate direct current series excitation chopping speed regulation electric locomotive |
| 06/18/2014 | CN102195286B Parallel-connection decoupling circuit for realizing parallel-connection direct-current network management |
| 06/17/2014 | US8755206 Converter valve |
| 06/17/2014 | US8755162 Protection circuit |
| 06/17/2014 | US8754615 Conversion of synchronous generator to synchronous condenser |
| 06/17/2014 | US8754601 Controller and control method of synchronous motor with amplifier protection function |
| 06/14/2014 | CA2836618A1 Excitation inrush-current suppression system |
| 06/12/2014 | WO2014089556A1 Method and system for load dump protection in an electrical machine |
| 06/12/2014 | WO2014087213A1 Electrical storage system |
| 06/12/2014 | WO2014086617A1 Measuring arrangement for measuring an effective value of an ac voltage in a handheld power tool |
| 06/12/2014 | WO2014060085A3 Method of operate is-limiters in ring systems |
| 06/12/2014 | WO2014032894A3 Method for driving an active bridge rectifier in the event of load shedding, rectifier arrangement and computer program product |
| 06/12/2014 | US20140160820 Electrical Current Transformer for Power Distribution Line Sensors |
| 06/12/2014 | US20140160602 Method and system for detecting fault of serial coil type permanent magnet motor |
| 06/12/2014 | US20140160601 Switch mode power supply, control circuit and associated control method |
| 06/12/2014 | US20140159628 Switch arrangement |
| 06/12/2014 | US20140159626 Motor driving apparatus |
| 06/12/2014 | DE202014102367U1 Multifunktionales Schutzgerät der Stromabgabe Multifunctional protection unit of electricity supply |
| 06/12/2014 | DE102013211944A1 Leistungssteuergerät für Fahrzeugbatterie Power control device for vehicle battery |
| 06/12/2014 | DE102012222572A1 Circuit device for operating electric motor for brake system for vehicle i.e. motor car, has delay device to delay detected voltage increased height through control device before turned-OFF of switching unit |
| 06/12/2014 | DE102006048576B4 Motorsteuervorrichtung The motor control apparatus |
| 06/11/2014 | EP2741391A2 Battery pack with improved safety |
| 06/11/2014 | CN203645622U 一种太阳能光伏直流控制器 A solar photovoltaic DC Controller |
| 06/11/2014 | CN203645588U 基于汽车再生制动的无刷直流电机控制系统 Based on the car's regenerative braking brushless DC motor control system |
| 06/11/2014 | CN203645566U 一种具有两路输出电压的机载ac-dc电源转换装置 Airborne ac-dc power conversion device having two output voltages |
| 06/11/2014 | CN203645482U 具有过热保护功能的电动机 Motor overheating protection function |
| 06/11/2014 | CN203645388U 双向交替充放电太阳能光伏控制器 Two-way alternating charge and discharge controller solar photovoltaic |
| 06/11/2014 | CN203645351U 充电电路和具有该充电电路的充电器 The charger has a charging circuit and a charging circuit |
| 06/11/2014 | CN203645315U 高压开关柜弧光保护结构 High Voltage Switchgear arc protection structures |
| 06/11/2014 | CN203645314U 高压开关柜温度保护结构 High Voltage Switchgear temperature protection structure |
| 06/11/2014 | CN203645313U 引纬驱动保护电路 Weft insertion driver protection circuit |
| 06/11/2014 | CN203645312U 一种动力锂电池组保护板 A power lithium battery protection board |
| 06/11/2014 | CN203645311U 带自励停止回路的直流高压电源 With self-motivation to stop DC high voltage power supply circuit |
| 06/11/2014 | CN203645310U 用于钢管输送的电机的正反转控制电路 Pipe conveyor for reversing motor control circuit |
| 06/11/2014 | CN203645309U 三相电动机过流保护装置 Three-phase motor overcurrent protection device |
| 06/11/2014 | CN203645308U 电动机直接式传动保险装置 Direct drive motor safety device |
| 06/11/2014 | CN203645297U 一种接地故障保护装置和薄膜电池板 A method of ground fault protection devices and thin-film solar panels |
| 06/11/2014 | CN203644897U 一种触发式电池过充报警系统 In a trigger battery overcharge alarm system |
| 06/11/2014 | CN203641050U 多功能遥控应急电风扇 Universal Remote Emergency fan |
| 06/11/2014 | CN203640486U 一种电动车窗控制模块 An electric window control module |
| 06/11/2014 | CN103858323A System for protecting against heating for a rotating electric machine, in particular a starter |
| 06/11/2014 | CN103856058A Voltage switching circuit and voltage switching controller |
| 06/11/2014 | CN103856053A Power supply controller with overpower protection function |
| 06/11/2014 | CN103856051A High-voltage square wave gain driving signal amplitude control device |
| 06/11/2014 | CN103855933A High-power and high-frequency power driving device |
| 06/11/2014 | CN103855712A Power distribution net rack wiring structure |
| 06/11/2014 | CN103855693A Relay protection system for 10-kilovolt two-stage switching station and method |
| 06/11/2014 | CN103855692A Method for acquiring multi-partition relay protection setting value |
| 06/11/2014 | CN103855691A Method, device and system for fault diagnosis of transformer substation |
| 06/11/2014 | CN103855690A Power-off releaser circuit used for auto-reclosing switch |
| 06/11/2014 | CN103855689A Cascaded battery protection circuit and system |
| 06/11/2014 | CN103855688A Leakage current protection circuit of battery |
| 06/11/2014 | CN103855687A Electric vehicle IGBT overcurrent protection method and circuit with method applied |
| 06/11/2014 | CN103855686A Method for wiring polarity of main transformer microcomputer type differential protection current transformer |
| 06/11/2014 | CN103855685A Method for starting electric quantity protection through transformer non-electric quantity protection to conduct fault recording |
| 06/11/2014 | CN103855684A Circuit protection device for gas discharge tube |
| 06/11/2014 | CN103853847A Splicing method of multistage multi-region interconnected network relay protection model |
| 06/11/2014 | CN102611084B Self-adaptive voltage protection method |
| 06/11/2014 | CN102427218B Transformer short period overload capability assessment system based on artificial intelligence technology |
| 06/11/2014 | CN102246386B Vehicle power supply system |
| 06/10/2014 | US8749999 Controller and power converter using the same for clamping maximum switching current of power converter |
| 06/10/2014 | US8749998 Mobile device adapter and charger |
| 06/10/2014 | US8749933 Fault protection of HVDC transmission lines |
| 06/10/2014 | US8749927 Methods and systems for recording operating information of an electric motor |
| 06/05/2014 | WO2014082805A1 Device for protecting against overvoltage for automaton power supply |
| 06/05/2014 | US20140153301 Ac signal detector and the method thereof |
| 06/05/2014 | DE102013224427A1 Verfahren und Schaltkreis zur Steuerung von Motor-Einschaltsignalen A method and circuit for controlling turn-on of motor- |
| 06/05/2014 | DE102012222282A1 Generator arrangement for use in onboard network of motor car, has drive unit formed such that excitation winding is permanently connected with voltage pole of semiconductor switch in case of error |
| 06/05/2014 | DE102012221952A1 Method for suppressing or interrupting arc in switch after opening, involves passing supply current in same direction as previous current between return path and infeed node through supply line |
| 06/05/2014 | DE102012111855A1 Verfahren zur Vermeidung von Überströmen in einem leistungselektronischen Gerät und leistungselektronisches Gerät Method for avoiding overflow in an electronic power device and power electronic device |
| 06/05/2014 | DE102012023649A1 Method of fault handling in loading of electrical energy storage device for use in e.g. battery electric vehicle (BEV), involves analyzing fault condition in loading operation, and outputting fault-indicating output |
| 06/05/2014 | DE102012023461B3 Electrical system for motor vehicle, has first sub-network, which is designed for first voltage that is higher than 16 Volts and second sub-network, which is designed for second voltage that is lower than first voltage |