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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11/16/2010 | US7834472 Method of controlling a wind turbine connected to an electric utility grid during malfunction in said electric utility grid, control system, wind turbine and family hereof |
11/11/2010 | WO2010129723A2 Low-voltage connection with safety circuit and method for determining proper connection polarity |
11/11/2010 | WO2010127720A1 Method of adapting a configuration of a voltage converting device and voltage converting unit for a voltage converting device |
11/11/2010 | US20100286837 Method of measuring mechanical fatigue in turbine-generator rotors |
11/11/2010 | DE202010012492U1 Spannungswandler Voltage converter |
11/11/2010 | DE102009019831A1 Schaltungsanordnung Circuitry |
11/11/2010 | DE102009019825A1 Circuit arrangement for supplying electric current to consumer in motor vehicle, supplies current to load including evaluating circuit switching relay such that current through motor is interrupted by when current exceeds preset value |
11/11/2010 | CA2761100A1 Method of adapting a configuration of a voltage converting device and voltage converting unit for a voltage converting device |
11/10/2010 | EP2249452A1 Battery system |
11/10/2010 | EP2248240A1 Multiple-channel active sensing and switching device |
11/10/2010 | EP2247411A2 Electric rotating tool, control method, and program |
11/10/2010 | EP2171153B1 A washer/dryer |
11/10/2010 | EP1350292B1 Condition diagnosing |
11/10/2010 | CN201629719U Servo driving device for robot asynchronous motor |
11/10/2010 | CN201629713U Dual-mode electronic speed governor |
11/10/2010 | CN201629688U Wide input voltage-regulating circuit used for inverter |
11/10/2010 | CN201629687U DC stringing rectifying power supply for mine |
11/10/2010 | CN201629676U Elevator matrix frequency conversion device |
11/10/2010 | CN201629672U DC/DC module power source |
11/10/2010 | CN201629606U Protection system for power line |
11/10/2010 | CN201629590U Solar corridor power supplying system |
11/10/2010 | CN201629566U Electricity network single-phase grounding comprehensive protecting device |
11/10/2010 | CN201629565U Switch cabinet arc light protection system with compact structure |
11/10/2010 | CN201629564U Over-temperature protection circuit of insulated gate bipolar transistor (IGBT) module |
11/10/2010 | CN201629563U Over-discharge protective circuit of power lithium ion batteries |
11/10/2010 | CN201629562U Intelligent overvoltage protector for automobile ECU |
11/10/2010 | CN201629561U 阀门控制及故障保护装置 Valve control and fault protection device |
11/10/2010 | CN201629560U High-reliability out-of-control preventive composite temperature control circuit |
11/10/2010 | CN101884150A Drive system and associated control method |
11/10/2010 | CN101882860A Novel insulated gate bipolar translator (IGBT) drive and protection circuit |
11/10/2010 | CN101882807A Vehicle-mounted electrical vehicle charger with memory function |
11/10/2010 | CN101882783A Method for reducing fault processing time of current grounding system in 10kV voltage class |
11/10/2010 | CN101882782A Method for calculating reliability of relay protecting system |
11/10/2010 | CN101882781A Method for calculating comprehensive reliability of relay protecting system |
11/10/2010 | CN101882780A Intelligent control module for energy storage motor of tank circuit breaker |
11/10/2010 | CN101882779A High voltage converter with differential protection |
11/10/2010 | CN101882778A Incomplete differential protection technology for turbonator |
11/10/2010 | CN101540500B Data synchronization method of digital optical fiber differential protective clock by relay method |
11/10/2010 | CN101385215B Power supply unit and controlling method thereof |
11/10/2010 | CN101232177B HVDC transmission line distance protecting method |
11/10/2010 | CN101018036B Dynamotor brushless excitation adjuster with the protection device |
11/09/2010 | US7830684 Reverse biasing active snubber |
11/09/2010 | US7830680 Power unit |
11/09/2010 | US7830679 Transmission system |
11/09/2010 | US7830120 Low side N-channel FET protection circuit |
11/04/2010 | WO2010087661A3 Portable auxiliary power-source device for a vehicle |
11/04/2010 | US20100277959 Power supply module |
11/04/2010 | US20100277838 Fault condition protection |
11/04/2010 | US20100277836 Smart capacitor |
11/04/2010 | US20100276994 Method for Powering and Terminating Operation of Vehicle Accessories with Engine Off |
11/03/2010 | EP2245297A1 Parallel starting system |
11/03/2010 | EP1393433B1 Method for determining the rotating position of the drive shaft of a commutated direct current motor |
11/03/2010 | EP1008221B1 Overcurrent protection circuit with improved ptc trip endurance |
11/03/2010 | CN201623645U Phase-controlled industrial direct current supply |
11/03/2010 | CN201623630U Voltage-reducing circuit of switch power supply |
11/03/2010 | CN201623518U Single-chip charging circuit for electric vehicles |
11/03/2010 | CN201623516U Solar photovoltaic application control system |
11/03/2010 | CN201623505U Emergency power supply circuit of fluorescent lamp |
11/03/2010 | CN201623478U Photovoltaic direct-current lightning-protection header box |
11/03/2010 | CN201623475U Small current system grounding protection device |
11/03/2010 | CN201623474U Low-current system grounding protection device with fault positioning function |
11/03/2010 | CN201623473U Bus-bar room arc light monitoring and protective device of high reliability |
11/03/2010 | CN201623472U Electric leakage alarm device used for integrated distribution cabinet |
11/03/2010 | CN201623471U Over-charging protection circuit of power lithium ion batteries |
11/03/2010 | CN201623470U Protection circuit of power lithium ion batteries |
11/03/2010 | CN201623469U Temperature protection circuit of power lithium ion batteries |
11/03/2010 | CN201623468U Discharge state overcurrent protection circuit of power lithium ion batteries |
11/03/2010 | CN201623467U Over-discharge protection circuit of power lithium ion batteries |
11/03/2010 | CN201623466U Over-charging protection circuit of power lithium ion batteries |
11/03/2010 | CN201623465U Crowbar protective device of double-feed wind power converter |
11/03/2010 | CN201623464U Turbine overspeed protecting device capable of being maintained on line |
11/03/2010 | CN201623463U Steam turbine over-speed protection device with abnormal rotation speed alarm function |
11/03/2010 | CN201623462U Overvoltage protective device for AC-AC excitation system |
11/03/2010 | CN201623461U Safe automatic braking device of wind-driven generator |
11/03/2010 | CN201621483U Multifunctional emergency power-supply illuminating lamp |
11/03/2010 | CN1828789B Superconducting magnet system |
11/03/2010 | CN101877545A Power module |
11/03/2010 | CN101877540A Three-switch alternating current brushless voltage regulation device |
11/03/2010 | CN101877480A Method for judging voltage compensation of single-pole adaptive reclosure of electric transmission line |
11/03/2010 | CN101877479A Method for comparing and judging phase of single-pole adaptive reclosure of electric transmission line |
11/03/2010 | CN101877478A Cell discharge protective device |
11/03/2010 | CN101505052B Method for implementing middle phase zero division zero sum by control protection switch |
11/02/2010 | US7826239 Overload protection delay circuit for switching power supply |
11/02/2010 | US7825536 Intelligent power system |
10/28/2010 | WO2010099986A3 Method for monitoring the thermal stress of an electric motor |
10/28/2010 | US20100270963 Malfunction determination device for motor control system |
10/28/2010 | US20100270860 Charging device for vehicle |
10/27/2010 | CN201616807U 永磁电机直驱式螺杆泵抽油机的电机控制装置 Direct drive permanent magnet motor screw pumping motor control device |
10/27/2010 | CN201616801U 起重电机控制器 Lifting motor controller |
10/27/2010 | CN201616796U 分相电机电子启动器 Split-phase motor electronic starter |
10/27/2010 | CN201616794U 电动机热保护智能转换电路 Motor thermal protection intelligent converter circuit |
10/27/2010 | CN201616751U 一种利用直流电机堵转进行原点定位的装置 A DC motor stall conducted origin positioning device uses |
10/27/2010 | CN201616686U 一种具有短路保护装置的动力电池组 Short-circuit protection device having a battery pack |
10/27/2010 | CN201616666U 多功能中低压开关柜短路保护系统 Multifunction low-voltage switchgear circuit protection system |
10/27/2010 | CN201616665U 微机继电保护装置 Computer protection devices |
10/27/2010 | CN201616664U 手机充电器过热报警及保护装置 Phone charger overheating alarm and protection devices |
10/27/2010 | CN201616663U 一种用于防止电解电容桥臂爆炸的电路 Circuit for preventing the explosion of electrolytic capacitors arm |
10/27/2010 | CN201616662U Igct电压源型三电平中压变频器的桥臂直通保护器 Igct three-level voltage source inverter bridge arm MV-through protection |
10/27/2010 | CN201616661U 三相交流电动机自动换相缺相保护仪 Three-phase AC motor automatic commutation phase protection device |
10/27/2010 | CN201616660U 电动机保护装置 Motor protection devices |