Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232)
06/2012
06/14/2012US20120147507 Systems, methods, and apparatus for leakage current masking and ground fault detection
06/14/2012DE102011011254A1 Überspannungsableiteranordnung mit mindestens einem Varistorableitelement Surge arrester with at least one Varistorableitelement
06/14/2012DE102010062921A1 Circuit device for operating electric drive motor for e.g. washing machine, has control circuit enabling switching of switch between open and bypass positions, where control circuit measures electrical alternating voltage at tap nodes
06/13/2012CN202276154U Low voltage ride-through control device for double-fed wind power generation system
06/13/2012CN202276150U 接地转移电流检测补偿装置 Ground transfer current detection compensation device
06/13/2012CN202276149U 处理瞬时性单相接地故障的装置 Means for processing transient single-phase ground fault
06/13/2012CN202276148U 脉选线圈补偿和故障处理装置 Pulse compensation coil selection and troubleshooting device
06/13/2012CN202276147U 避免直接接地消弧复归过电压的消弧装置 Avoid direct ground return overvoltage crowbar crowbar devices
06/13/2012CN202276146U 一种用于adsl终端设备的防雷击电路 Lightning circuit for terminal equipment adsl
06/13/2012CN202276145U 高压输电线路反雷电绕击器 High-voltage transmission lines is anti LIGHTNING
06/13/2012CN202276144U Protective device of base station communication power supply and base station communication power supply
06/13/2012CN202276143U 母线型大容量过电压保护装置 High-capacity bus overvoltage protection device
06/13/2012CN202276142U 电动车、电动车复合动力电源及其蓄电池组电流控制电路 Electric vehicles, hybrid electric vehicle power supply and battery current control circuit
06/13/2012CN202275113U 单相智能电能表及其电源综合保护电路 Single-phase smart meter and power integrated protection circuit
06/13/2012CN102497111A Fast-control power supply system based on IPM (intelligent power module) H-bridge cascade connection
06/13/2012CN102497011A Offline power circuit for self-destruct circuit
06/13/2012CN102497009A Bus soft start circuit of uninterrupted power supply, and method for the same
06/13/2012CN102496922A Sealed forcible trigger gap
06/13/2012CN102496921A Intelligent protection device for doubly-fed converter
06/13/2012CN102496920A Surge protection device and method for detecting faults by using surge protection device
06/13/2012CN102496919A Load unbalance compensation current limiter
06/13/2012CN102496679A Liquid nitrogen low-temperature system for superconducting current limiter
06/13/2012CN101764403B UUT protective circuit
06/13/2012CN101588061B Thyristor valve triggering and monitoring system for fault current limiter
06/13/2012CN101533837B Electrostatic protection circuit
06/12/2012US8199451 ESD protection device and composite electronic component of the same
06/12/2012US8199447 Monolithic multi-channel ESD protection device
06/12/2012US8199446 Circuit interrupting system with remote test and reset activation
06/12/2012US8199445 Gas insulated circuit breaker system and gas insulated circuit breaker monitoring method
06/07/2012WO2012072751A1 Electrical component of a current limiter for protecting an electrical power supply
06/07/2012WO2012034789A3 Method and circuit arrangement for charging an intermediate circuit capacitor
06/07/2012US20120140366 Integrated circuit
06/07/2012US20120140363 Overvoltage Protection for Inverters that Comprise an EMC Filter at Their Input End
06/07/2012US20120140362 Method of Operating a Heating Element for Underfloor Heating
06/06/2012EP1730827B1 Device for deviating overvoltages comprising one or several parallel mounted overvoltage limiting elements arranged in a structural unit
06/06/2012DE102004017284B4 Integrierte Halbleiterschaltung und Verfahren zur Prüfung der integrierten Halbleiterschaltung A semiconductor integrated circuit and method for testing the semiconductor integrated circuit
06/06/2012CN202268842U 一种变频电机驱动电路 One kind of variable frequency motor drive circuit
06/06/2012CN202268695U 一种包括过电流过热脱扣指示装置的电涌保护器 Comprising a thermal overcurrent trip indicating device surge protector
06/06/2012CN202268694U 一种应用于数字微波收发信机的雷击浪涌保护电路 Applied to digital microwave transceiver lightning surge protection circuit
06/06/2012CN202268693U 电力系统复合接地装置 Complex power system grounding device
06/06/2012CN202268692U 一种适配器的防雷电路 An adapter of lightning protection circuit
06/06/2012CN202268691U 中置式开关柜过电压吸收装置 In the home-absorbing device over-voltage switchgear
06/06/2012CN202268690U Overload protection circuit of transformer
06/06/2012CN102487260A Improvement of soft start major loop current limiting
06/06/2012CN102487194A Electrostatic protection structure based on Si-Ge process platform
06/06/2012CN101764401B Practical and reliable lightningproof circuit
06/05/2012US8194379 Inrush current control system with soft start circuit and method
06/05/2012US8194378 Line commutation type fault current limiter
06/05/2012US8194373 Electrostatic discharge protection circuit
06/05/2012US8194372 Systems and methods for electrostatic discharge protection
06/05/2012US8194371 Integrated circuit protection device
06/05/2012US8194369 Semiconductor integrated circuit
06/02/2012CA2724165A1 Electrical safety grounding system
05/2012
05/31/2012WO2012071051A1 Granular non- polymeric varistor material, substrate device comprising it and method for forming it
05/31/2012US20120134062 Device and method for securing an electric line with a controllable switching element
05/31/2012US20120134060 Electronic device with protection circuit
05/31/2012US20120134059 Esd protection device and manufacturing method thereof
05/31/2012DE102010001924B4 Überspannungsbegrenzungseinrichtung für Gleichspannungsnetze Overvoltage limiter for DC systems
05/30/2012EP2092624B1 Power supplies
05/30/2012EP1681753B1 Overheat protection device and electrical system having the same
05/30/2012CN202261290U Lightning-protection type GNSS (Global Navigation Satellite System) signal relay amplifier
05/30/2012CN202261008U Circuit for improving overhigh impact current of power factor correction circuit
05/30/2012CN202260473U 3300V mining reactive power automatic compensation device
05/30/2012CN202260441U Current arc extinction device
05/30/2012CN202260440U External 10 kva millisecond timescale lightning protection module
05/30/2012CN202260439U Protection circuit for SLIC chip and PCB
05/30/2012CN202260438U Power-off protection circuit and bulldozer with same
05/30/2012CN202260437U Low-power surge eliminating circuit and switching power supply
05/30/2012CN202260436U System overvoltage damping cabinet
05/30/2012CN202260435U Two-in-one monitoring multifunctional lightning protection device
05/30/2012CN202260434U Power source surge protector having high sensitivity
05/30/2012CN202260433U High-reliability power supply surge protector
05/30/2012CN202260432U Lightning prevention protection device for ground collection equipment
05/30/2012CN202260431U Novel camera lightning protection device
05/30/2012CN202260430U Interface protection circuit for excavator controller
05/30/2012CN202260429U Uninterrupted inrush current protective circuit
05/30/2012CN202260428U Dynamic thermal protection type over-voltage protector
05/30/2012CN202260427U Protection circuit, switchgear using same, and power supply distribution system
05/30/2012CN202260426U Lightning protection device for diesel engine unit
05/30/2012CN202260417U Light-emitting diode protective circuit
05/30/2012CN202259966U Lightning protection adapter connector component and lighting protection module thereof
05/30/2012CN202259965U Lightning protection module for lightning protection socket
05/30/2012CN202257126U Intelligent controller for overhead working truck
05/30/2012CN202250430U Electromagnetic load control device
05/30/2012CN102480814A LED (light emitting diode) lamp control device capable of being controlled remotely
05/30/2012CN102480125A 一种usb接口的电流保护电路 One kind of current protection circuit usb interface
05/30/2012CN101882998B Ethernet interface circuit
05/30/2012CN101834433B Electrostatic discharge prevention circuit based on complementary SCR (Silicon Controlled Rectifier)
05/30/2012CN101752790B Overvoltage protection element and manufacturing method thereof
05/30/2012CN101588063B High power low residual voltage lightning protection module
05/30/2012CN101572407B Apparatus for reducing leak current of elevator
05/30/2012CN101534006B Lightning isolation device and lightning isolation method
05/30/2012CN101478151B Voltage detection and control circuit
05/30/2012CN101379672B Apparatus and method for reducing leakage between an input terminal and a power rail
05/30/2012CN101378194B Voltage protection circuit
05/30/2012CN101373894B Electrostatic discharge protecting circuit
05/29/2012US8190934 Solid state power controllers including current sensing circuitry is configured to bias a general signal to a predetermined level in order to substantially eliminate the offset error in an amplifier and an A/D converter
05/29/2012US8189314 Current in-rush limiting circuit using switchable current limiting arrangement
05/29/2012US8189313 Fault detection and handling for current sources
05/29/2012US8189309 Clamp for controlling current discharge
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