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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10/13/2010 | CN201608514U 用于绝缘栅双极晶体管的过流保护电路 Overcurrent protection circuit for an insulated gate bipolar transistor, |
10/13/2010 | CN201608513U 一种多用途太阳能供电设备 A multi-purpose solar-powered equipment |
10/13/2010 | CN201608512U 一种变频器移变运行的保护装置 One kind of converter transformer operated shift protection device |
10/13/2010 | CN201608511U 免烧电机 Unburned motor |
10/13/2010 | CN201608510U 用于消除抽蓄电站发电电动机和主变压器保护死区的装置 Means for eliminating Pumped Storage Power generator motor and the main transformer protection Dead Zone |
10/13/2010 | CN201608509U 多功能电动机保护装置 Multifunction motor protection device |
10/13/2010 | CN201608508U 变压器中性点棒间隙保护装置 Transformer neutral point rod gap protection device |
10/13/2010 | CN201606193U 风力涡轮机 Wind turbine |
10/13/2010 | CN201602716U 全自动保洁机器人控制电路 Automatic cleaning robot control circuit |
10/13/2010 | CN101860311A Drive device of series DC machine for pitch control system |
10/13/2010 | CN101860310A Drive control circuit and method of series DC machine for pitch control system |
10/13/2010 | CN101860304A Electric control device of semi-automatic folding electric power assisting cycle |
10/13/2010 | CN101860290A Multifunctional alternating current servo driver |
10/13/2010 | CN101860252A Three-level converter for optimizing device overcurrent protection and enlarging system safety operation area |
10/13/2010 | CN101860242A Direct current power circuit based on inductive storage and having no electrolytic capacitor |
10/13/2010 | CN101860179A Silicon controlled thyristor frequency conversion device |
10/13/2010 | CN101860080A Distribution network metering and protection integral device suspended at high-voltage side |
10/13/2010 | CN101860065A Intelligent timing charging device of electric automobile |
10/13/2010 | CN101860064A Pavement charging system and automatic charging method of electric automobile |
10/13/2010 | CN101860047A Charging system and corresponding electronic device as well as charging device and automatic power off method |
10/13/2010 | CN101860020A Method of boundary element utilizing polar wave S transform energy ratio to determine ultra high-voltage direct current transmission line fault |
10/13/2010 | CN101860019A Acceleration method of symmetric opening in distance protection oscillation lock |
10/13/2010 | CN101860018A One-phase ground protection measurement and control system of high-voltage breaker |
10/13/2010 | CN101860017A Control device for high-voltage and high-power power electronic converter system |
10/13/2010 | CN101860016A Protection and control method of battery system of plug-in electromobile |
10/13/2010 | CN101860015A Phase failure protector of electric motor |
10/13/2010 | CN101860014A Motor overload energy bubble protection method and control system thereof |
10/13/2010 | CN101860013A 马达保护装置 Motor protection devices |
10/13/2010 | CN101860012A Over-speed prewarning protection method for generator of wind generating set |
10/13/2010 | CN101860011A Direct current rail transportation system fault recognition method |
10/13/2010 | CN101860010A Real-time automatic intelligent monitoring protection device for pressure of 3M7990 ball flashing machine |
10/13/2010 | CN101860009A Automatic isolation device for cable network fault |
10/13/2010 | CN101860000A Quick identification method for permanent fault before single-phase reclosing of power transmission line |
10/13/2010 | CN101858959A Simulation test method for influence of sampling data delay deviation on relay protective device |
10/13/2010 | CN101409443B Line differential protection method capable of adapting by-path running status automatically |
10/13/2010 | CN101349737B Method for detecting electric motor state and discriminating start-up course |
10/13/2010 | CN101278452B Method and system for through fault detection in electrical devices |
10/13/2010 | CN101236225B Electric network transformer monitoring device monitoring method |
10/13/2010 | CN101179191B Method for protector to detect disconnection of neutral line using third harmonic |
10/12/2010 | US7813090 DC switchgear provided with a commutation-type DC circuit breaker |
10/12/2010 | US7813089 Motor controller and electric power steering apparatus |
10/12/2010 | US7812615 Method and device for fault detection in transformers or power lines |
10/12/2010 | US7812474 Automobile |
10/12/2010 | CA2682919C Protective relay capable of protection applications without protection settings |
10/07/2010 | WO2010114513A1 Three phase power supply fault protection |
10/07/2010 | WO2010112694A2 Method for securing the operation of an electric battery |
10/07/2010 | WO2010112389A1 Circuit for a brushless motor and method for operating same |
10/07/2010 | WO2010112083A1 Electric breaker circuit and method of operating an electric breaker circuit |
10/07/2010 | WO2010078119A3 Immersion sensor to protect battery |
10/07/2010 | WO2009127660A3 Drive circuit for a dc motor, comprising an h-bridge and a motor braking circuit |
10/07/2010 | US20100254047 Early quench detection in a superconducting article |
10/07/2010 | DE202010007991U1 LED-Schutzanordnung LED protection order |
10/07/2010 | DE112008001109T5 Elektrische Servolenkung Electric power steering |
10/07/2010 | DE102010003241A1 Schaltung für einen bürstenlosen Motor und Verfahren zu deren Betrieb Circuit for a brushless motor and method for its operation |
10/07/2010 | DE102009012942A1 Compressor e.g. ventilator, has electric motor arranged in crankcase, and control device for releasing control measures depending on comparison of measured values with stored limit values |
10/07/2010 | DE102009001962A1 Ladesystem mit Fl-Schutzschaltern Charging system with Fl-breakers |
10/07/2010 | DE102008024348B4 Verfahren zur Reduktion pulsförmiger Erdströme an einem elektrischen Großgerät und Kompensationsschaltung zur Erdstromverlagerung A method for reducing pulsed ground currents to a large electrical appliance and compensation circuit for Erdstromverlagerung |
10/06/2010 | EP2235806A2 System and method for ground fault detection and interruption |
10/06/2010 | CN201601614U 功率型开关电源 Power Switching Power Supply |
10/06/2010 | CN201601609U 一种兆瓦级永磁直驱式风力发电变流器 One kind megawatt permanent magnet direct drive wind power converters |
10/06/2010 | CN201601535U 血液分析仪的锂电池供电电路 Blood analyzer lithium battery-powered circuit |
10/06/2010 | CN201601526U 智能防漏电开关 Smart leakage power switch |
10/06/2010 | CN201601525U 镍氢电池充电器 NiMH battery charger |
10/06/2010 | CN201601518U 一种新型充电装置 A new charging device |
10/06/2010 | CN201601517U 多节锂电池充电器 Multi-Cell Li-Ion Charger |
10/06/2010 | CN201601482U 高压断路器线圈保护装置 High voltage circuit breaker coil protection |
10/06/2010 | CN201601481U 一种弧光保护装置 One kind of arc protection device |
10/06/2010 | CN201601480U 一种弧光保护系统 One kind of arc protection system |
10/06/2010 | CN201601479U 软包装型锂电池故障检测保护电路 Flexible type lithium battery protection circuit fault detection |
10/06/2010 | CN201601478U 软包装型锂电池保护电路 Flexible type lithium battery protection circuit |
10/06/2010 | CN201601477U 光伏阵列防雷汇流箱 Lightning PV array combiner box |
10/06/2010 | CN201601476U 节电式三相异步电动机断相保护电路 Energy-saving three-phase asynchronous motor phase failure protection circuit |
10/06/2010 | CN201601475U 电子式过电流保护器 Electronic overcurrent protection |
10/06/2010 | CN201601473U 电机电缆保护装置 Motor cable protection devices |
10/06/2010 | CN201601005U 一种电力主变压器有载调压过负荷闭锁重动装置 A power main transformer load tap Verb overload lockout device |
10/06/2010 | CN201600421U 开关保护器的测试装置以及开关保护器 Switch protector test device and switch protection |
10/06/2010 | CN1812087B Battery protection ic chip |
10/06/2010 | CN1790857B Protective circuit of battery pack and method for determining sensing line breaking |
10/06/2010 | CN101854069A Solar powered battery charging methods and devices for lithium-ion battery systems |
10/06/2010 | CN101854067A Electronic device and safe charging method thereof |
10/06/2010 | CN101854066A Safety system of power supply |
10/06/2010 | CN101854057A Novel method for protecting subway 10 kV/35 kV ring network power supply circuit |
10/06/2010 | CN101854056A Neutral bus switch protection health pole action strategy and counting shutdown method thereof |
10/06/2010 | CN101854055A Thyristor malfunction detection system and method based on singlechip control |
10/06/2010 | CN101854054A Bus protection system of transformer station and protection method thereof |
10/06/2010 | CN101854053A Overcurrent protection method for inverter by using FPGA and circuit thereof |
10/06/2010 | CN101854052A Sampling data passageway switching method and device in main transformer protection of digitalized substation |
10/06/2010 | CN101854051A Hot plug device of high-voltage DC UPS |
10/06/2010 | CN101350520B Protection control system and method base on electric network synthesis information |
10/06/2010 | CN101304226B Armoured flame-proof type flexible starting equipment |
10/06/2010 | CN101272047B Five-in-one intelligent digital general air conditioner protector |
10/06/2010 | CN101147307B 换流器阀 Inverters valve |
10/06/2010 | CN101133539B Device and method for sensing temperature of a rotating electromagnetic machine |
10/06/2010 | CN101105326B Frequency-changing air conditioner power module protection device |
10/05/2010 | US7808763 Adjustable speed drive protection |
10/02/2010 | CA2698290A1 Brushless dc motor with soft-starting of pwm signals |
09/30/2010 | WO2010111412A2 Systems, devices and methods for predicting power electronics failure |
09/30/2010 | WO2010108342A1 Excitation control system for marine diesel brushless doubly fed shaft generator and control method thereof |
09/30/2010 | WO2010079308A3 Electrical system for starting up aircraft engines |
09/30/2010 | US20100242363 Opening-and-closing member drive control apparatus for vehicle |