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)
03/2012
03/22/2012US20120068806 Surge protective device with thermal decoupler and arc suppression
03/22/2012DE102010046223A1 Regeleinrichtung für ein wärmetechnisches Gerät Controller for a heat-technical equipment
03/22/2012DE102010009484B4 Wechselrichter für Photovoltaikanlagen Inverter for photovoltaic systems
03/21/2012EP2431830A2 Regulating device for a heating device
03/21/2012EP2141780B1 Phase control switch and switching pole control method in phase control switch
03/21/2012EP2057726B1 Differential protection method and differential protection unit
03/21/2012EP1402611B1 Anti-pinch window control system and method
03/21/2012CN202172287U 一种后备电源控制电路 A backup power supply control circuit
03/21/2012CN202172270U 一种屏蔽线接地电路 One kind of shielded wire grounded circuit
03/21/2012CN202172264U 零线监控装置 Zero line monitoring device
03/21/2012CN202172263U Novel low-voltage distribution system
03/21/2012CN202172262U 应急动力启动电源过流与短路自动保护恢复电路 Emergency power supply overcurrent and short circuit starts automatic protection recovery circuit
03/21/2012CN202172261U 一种大容量电机或多台电机的抗晃电装置 A high capacity motor or motors anti-shake electrical device
03/21/2012CN202172255U 低压电网保护装置 Low-voltage grid protection devices
03/21/2012CN202172254U 一种数字识别限电装置 A digital device identification brownouts
03/21/2012CN202172253U 峰值电流检测保护电路 Peak current detection and protection circuit
03/21/2012CN202172252U 无线基站电源自启动装置 Wireless base station power since the launch device
03/21/2012CN202172181U 一种防雷节能插座 One kind of lightning energy-saving socket
03/21/2012CN102388315A Method for identifying type of fault on power line
03/21/2012CN102386615A Protection system and method for preventing override trip during short-circuit fault in coal mine power supply and distribution system
03/21/2012CN102386611A Electric device power limiter
03/21/2012CN102386610A Intelligent leakage protection switch
03/21/2012CN102386609A Leakage protection device
03/21/2012CN102386608A Intelligent lightning protection residual current circuit breaker
03/21/2012CN102386607A Short-circuit protection circuit
03/21/2012CN102386606A Circuit and method for preventing overcurrent conditions
03/21/2012CN101673926B Breaker controller with over-current backup protection and protection method thereof
03/21/2012CN101521977B Voltage testing circuit and CCFL converter system with voltage testing circuit
03/21/2012CN101227075B Low-voltage breaker with high voltage open-phase protection
03/20/2012US8139337 Systems and methods for reducing electrically-caused fires in wiring devices
03/20/2012US8139336 Field configurable rating plug using communication and control signal
03/20/2012US8139334 Over-voltage protection circuit
03/20/2012US8139333 Short circuit protection circuit
03/20/2012US8139332 Level conversion circuit and semiconductor integrated circuit device employing the level conversion circuit
03/20/2012US8139330 Semiconductor integrated circuit
03/20/2012US8139329 Over-voltage protection circuit
03/20/2012US8139328 Fault circuit interrupting device with symmetrical inputs
03/20/2012US8138937 Grounding monitoring device and system for work
03/20/2012US8138634 Transfer switch with arc suppression
03/20/2012US8136890 Shock proof devices and methods
03/20/2012CA2609039C Switchgear control apparatus
03/20/2012CA2515059C Circuit interrupting device and system utilizing electromechanical reset
03/15/2012WO2012031629A1 Method and system for disconnecting a generator from a power system
03/15/2012US20120063049 Junction field effect transistor for voltage protection
03/15/2012US20120063045 Detecting and selectively ignoring power supply transients
03/15/2012US20120062271 Methods and System for Electrostatic Discharge Protection of Thin-Film Transistor Backplane Arrays
03/14/2012EP2429051A2 Limitation of the loading of a power source
03/14/2012EP2427940A1 Monitoring apparatus
03/14/2012CN202168020U 具有漏电保护功能的电机软起动装置 Motor soft starter with leakage protection function
03/14/2012CN202167837U 一种pfc过流保护电路及应用该电路的空调器 Air conditioner one kind pfc current protection circuit and application of the circuit
03/14/2012CN202167836U 晶闸管过压保护装置 Thyristor overvoltage protection device
03/14/2012CN202167832U 起重设备过载自动报警装置 Lifting equipment overload alarm device
03/14/2012CN202167829U 硬件控制的过温保护终端 Overtemperature protection terminal hardware control
03/14/2012CN202167828U 一种数控稳压器的相序保护器 One kind of NC Regulators phase sequence protection
03/14/2012CN202167827U 安全速断型漏电保护器 Safe speed off leakage protector
03/14/2012CN202167826U 一种智能电子马桶控制器的漏电及过温保护控制电路 Leakage and over-temperature protection circuit controller, an intelligent electronic toilet
03/14/2012CN202167825U 一种三相过压检测保护装置 A three-phase overvoltage protection device detection
03/14/2012CN202167824U 劣化指示灯 Deterioration indicator
03/14/2012CN202167823U 一种有边嵌入式轨道限流器 A kind of edge embedded track the flow restrictor
03/14/2012CN202167714U 一种漏电保护插头 One kind of leakage protection plugs
03/14/2012CN202167713U 一种漏电保护插头 One kind of leakage protection plugs
03/14/2012CN202167712U 一种漏电保护插头 One kind of leakage protection plugs
03/14/2012CN1952838B Overheat indicating circuit for mainboard
03/14/2012CN102377237A Solar energy and mains supply complementary controller
03/14/2012CN102377176A Surge protection device
03/14/2012CN102377172A Three-phase program controlled power source and power amplifier tube short-circuiting protective circuit thereof
03/14/2012CN102377166A Automatic protection alarm system for sludge scraping and sucking machine
03/14/2012CN102377165A Power leakage protection device with temperature protection function
03/14/2012CN102377164A Energy-efficient leakage detection protection circuit
03/14/2012CN102377163A Electronic tripping device with function of monitoring tripping power source
03/14/2012CN102377162A Voltage regulator circuit structure
03/14/2012CN102377161A Piezoelectric nozzle protection circuit
03/14/2012CN102377160A Secondary thermal sensor for primary conductors
03/14/2012CN102377159A Over-current protection device of multiple high voltage power elements and method thereof
03/14/2012CN102377158A Non-electrical restarting circuit and driving method
03/14/2012CN102377157A Intelligent fire fighting electrical control device
03/14/2012CN102377156A Ground detection protective device for electric power comprehensive test vehicle
03/14/2012CN101651323B Method, device and application for self-recovery current limiting and circuit breaking by using conductive fluid and magnetic fluid
03/13/2012US8135974 Power on control device and method
03/13/2012US8134820 Contactor control circuit
03/13/2012US8134818 Quarter wave stub surge suppressor with coupled pins
03/13/2012US8134816 High-frequency power supply system
03/13/2012US8134815 Integrated circuit and assembly therewith
03/13/2012US8134812 Energy conversion system with fault detection and interruption
03/13/2012US8134810 Protective circuit arrangement
03/13/2012US8133765 Integrated RF ESD protection for high frequency circuits
03/13/2012CA2470630C Determining an operational limit of a power transmission line
03/08/2012WO2012028176A1 Method and arrangement for supplying voltage to an electrical contact-forming means
03/08/2012WO2012028016A1 Switch control system with zero power consumption in standby state
03/08/2012US20120057264 Current sensing load demand apparatus and methods
03/08/2012US20120057263 Methods, systems, and apparatus for detecting arc flash events using light and time discriminatoin
03/07/2012EP2426803A2 Protection circuit for a power conversion apparatus
03/07/2012EP2426802A2 Apparatus and method for quickly determining fault in electric power system
03/07/2012EP2425510A1 High voltage power line communication system using an energy harvesting power supply
03/07/2012EP2402774A9 Method and apparatus for determining distance to phase-to-earth fault
03/07/2012CN202159967U 一种开关电源短路保护电路 A switching power supply short-circuit protection
03/07/2012CN202159966U 电机监控无线报警装置 Motor monitoring wireless alarm device
03/07/2012CN202159962U 一种三相电源防雷箱 A three-phase power protection box
03/07/2012CN202159961U 地线安全电压控制系统 Ground voltage control system security
03/07/2012CN202159960U 一种无边嵌入式轨道限流器 One kind of boundless embedded track the flow restrictor
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