| 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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| 06/27/2012 | CN101488663B Over high voltage protection circuit apparatus and method thereof |
| 06/27/2012 | CN101202438B Electronic control systems and methods |
| 06/26/2012 | US8208276 Power conversion device |
| 06/26/2012 | US8208275 High-voltage modulator system |
| 06/26/2012 | US8208232 Automated anti-explosion system and method for integrated-drive-generator |
| 06/26/2012 | CA2621538C Method and system for through fault detection in electrical devices |
| 06/21/2012 | WO2012082192A1 System and method of automatic detection and prevention of motor runaway |
| 06/21/2012 | WO2012079390A1 Method for measuring temperature of permanent magnet synchronous motor of hybrid power automobile |
| 06/21/2012 | US20120155128 Power Converter with Reverse Recovery Avoidance |
| 06/21/2012 | US20120154959 Power Transfer Mechanism for Use in Transmission and Distribution Level Electrical Power Systems |
| 06/21/2012 | US20120154956 Self protected snapback device driven by driver circuitry using high side pull-up avalanche diode |
| 06/21/2012 | DE102011089851A1 Uninterrupted power supply device for electrical load, has electrical protection zone including transistor with specific switching time for electrically decoupling electrical load bus from adjacent electrical load bus |
| 06/21/2012 | DE102010063126A1 Device for charging high volt battery of motor vehicle e.g. electric vehicle, has monitoring device monitoring hazardous condition of device, and separating and/or discharge device transmitting control signal based on hazardous condition |
| 06/21/2012 | DE102009025363B9 Anfahrquelle Wechselrichter Anfahrquelle inverter |
| 06/20/2012 | EP2465181A2 Method and system for distributed power management |
| 06/20/2012 | EP2465174A1 Reduction of harmonic distortion for led loads |
| 06/20/2012 | CN202282606U 充电器自动全断电安全节能装置 Charger automatic full power off saving device safety |
| 06/20/2012 | CN202282605U 机车方向保护器 Locomotive direction protector |
| 06/20/2012 | CN202282604U 一种感应电动机断相故障在线监测装置 A motor-off phase fault line monitoring devices induction |
| 06/20/2012 | CN202282603U 数字式热继电器 Digital thermal relay |
| 06/20/2012 | CN1982692B Starter with superheating protective device |
| 06/20/2012 | CN102510623A Emergency light circuit and system |
| 06/20/2012 | CN102510205A Wide-range input direct-current rectification filter circuit |
| 06/20/2012 | CN102510083A Integration protection method capable of reducing wind power field low-voltage crossing capacity requirement |
| 06/20/2012 | CN102510058A Intelligent power network controller and working method thereof |
| 06/20/2012 | CN102510052A Method for limiting secondary arc current for untransposed transmission line with extra-high voltage |
| 06/20/2012 | CN102510051A Method for identifying failure of sampling value data of intelligent substation based on waveform coefficient equation |
| 06/20/2012 | CN102510050A Pilot protection method for direct current line current abrupt change of multi-terminal direct current transmission system |
| 06/20/2012 | CN102510049A Relay protection configuration method of double-circuit transmission line on same tower for intelligent substation |
| 06/20/2012 | CN102510048A Anti-override trip protection system |
| 06/20/2012 | CN102510047A Charge and discharge protection device for 3D (three-dimensional) glasses |
| 06/20/2012 | CN102510046A Over-current protector for motor |
| 06/20/2012 | CN102510045A Power supply controller of centrifugal-type brushless motor for regulating temperature in automobile seat |
| 06/20/2012 | CN102510044A Excitation inrush current identification method based on wavelet transformation and probabilistic neural network (PNN) |
| 06/20/2012 | CN101860013B Motor protective device |
| 06/20/2012 | CN101764394B Direct current differential protection method of rectification unit |
| 06/20/2012 | CN101699688B Relay protection method and relay protection device |
| 06/20/2012 | CN101640407B Power supply conversion device and method thereof |
| 06/20/2012 | CN101593969B Method for realizing station-to-station error prevention by using residual voltage of breaker port |
| 06/20/2012 | CN101582585B Composite monitoring device for electrode difference protection and grounding of direct-current system |
| 06/20/2012 | CN101557101B Relay protection method for eliminating failure in transformer dead zone |
| 06/20/2012 | CN101540495B Out-of-step protection system and method based on geometrical characteristics of movement locus of generator |
| 06/20/2012 | CN101488662B System and method for fault isolation and leakage current detection |
| 06/20/2012 | CN101228659B Lithium battery management system |
| 06/20/2012 | CN101227185B Electromechanical switching circuitry in parallel with solid state switching circuitry |
| 06/20/2012 | CN101026301B Method and apparatus for injection current |
| 06/19/2012 | US8203814 Electrical switching apparatus including a plurality of Rogowski coils and method of calibrating the same |
| 06/19/2012 | US8203812 Secondary side protection method and apparatus for a switching power converter |
| 06/19/2012 | US8203811 Protection apparatus and method for a power converter |
| 06/19/2012 | US8203317 Control parameter adaptation dependent on rotational speed |
| 06/19/2012 | CA2576281C Method and apparatus for preventing overheating in an electronically commutated motor assembly |
| 06/19/2012 | CA2446876C Protection of an electric power transmission network |
| 06/14/2012 | WO2012077284A1 Protective device for load circuit |
| 06/14/2012 | WO2012076478A1 Motor protection relay for optimizing the monitoring and protection of an electric motor |
| 06/14/2012 | WO2012075896A1 Lithium battery protection circuitry |
| 06/14/2012 | WO2012075725A1 Harmonic wave protecting method for capacitor bank |
| 06/14/2012 | WO2012022346A3 Method for monitoring a photovoltaic installation and monitoring device |
| 06/14/2012 | US20120147636 Method for inhibiting a converter with distributed energy stores |
| 06/14/2012 | US20120147635 Synchronous rectified pwm regulator with auto fault clearing |
| 06/14/2012 | US20120147506 Method of detecting an unintentional island condition of a distributed resource of a utility grid, and protective apparatus and controller including the same |
| 06/14/2012 | US20120147505 Capacitance check and voltage monitoring circuit for use with a circuit protection device |
| 06/14/2012 | US20120146563 Arrangement having an electric machine and method for operating an electric machine |
| 06/14/2012 | CA2762610A1 Method of detecting an unintentional island condition of a distributed resource of a utility grid, and protective apparatus and controller including the same |
| 06/13/2012 | EP2463976A1 Circuit and method for regulating a DC voltage and power con-verter |
| 06/13/2012 | EP2462671A1 Electronic device with protection circuit |
| 06/13/2012 | EP1177609B1 Fail-safe mechanism for dc-drive |
| 06/13/2012 | CN202276289U 本质安全输出准z源开关变换器 Intrinsically safe source switching converter output quasi-z |
| 06/13/2012 | CN202276191U 一种馈线自动化系统 One kind of feeder automation system |
| 06/13/2012 | CN202276141U Electric leakage protector |
| 06/13/2012 | CN202276140U 瞬时性单相接地故障处理装置 Instantaneous single-phase ground fault processing device |
| 06/13/2012 | CN202276139U 新型igbt短路保护电路 The new igbt short-circuit protection |
| 06/13/2012 | CN202276138U 基于tf卡检测的电池保护电路 Tf card based battery protection circuit detection |
| 06/13/2012 | CN202276137U 一种柔性纸电池保护电路 A flexible paper battery protection circuit |
| 06/13/2012 | CN202276136U 一种变频器的漏电保护装置 Leakage protection device for the inverter |
| 06/13/2012 | CN202276135U 无线智能电机综合保护控制器 Wireless intelligent motor controller integrated protection |
| 06/13/2012 | CN202276134U 一种双速电机控制器 A two-speed motor controller |
| 06/13/2012 | CN1697285B Power generation circuit using electromagnetic wave |
| 06/13/2012 | CN102498408A Method and system for monitoring a cable system of an electric power transmission system |
| 06/13/2012 | CN102497093A Output over-voltage protection circuit for power factor corrector |
| 06/13/2012 | CN102496937A Fault recovery method applied to intelligent distribution network and based on load balance |
| 06/13/2012 | CN102496918A Quick tripping device of DC breaker of DC traction power supply switch apparatus |
| 06/13/2012 | CN102496917A Method for checking and setting relay protection |
| 06/13/2012 | CN102496916A Switch failure protection method using electric network wide area information |
| 06/13/2012 | CN102496915A Power distribution network fault processing method and system thereof |
| 06/13/2012 | CN102496914A Preheating relay preventing short-circuit failure |
| 06/13/2012 | CN102496913A Circuit test system and circuit test and protection method for direct-current traction power supply feeder unit |
| 06/13/2012 | CN102496912A Three-phase IGBT temperature alarm and control protection circuit |
| 06/13/2012 | CN102496911A Traction transformer protection method, equipment and system |
| 06/13/2012 | CN102496910A Fault analyzing method of multi-device internet |
| 06/13/2012 | CN102496902A Method for forming, outputting and displaying generalized node of relay protection device |
| 06/13/2012 | CN102495273A Single current transformer (CT) input dual-precision sampling measuring and protecting integrated device |
| 06/13/2012 | CN101860000B Quick identification method for permanent fault before single-phase reclosing of power transmission line |
| 06/13/2012 | CN101847305B All-around current electrical fire alarm monitor of 400V low-voltage distribution network |
| 06/13/2012 | CN101794985B High-voltage direct-current (HVDC) system battery charging protecting circuit structure |
| 06/13/2012 | CN101764396B Method for realizing longitudinal distance protection at adaptive weak power side |
| 06/13/2012 | CN101588061B Thyristor valve triggering and monitoring system for fault current limiter |
| 06/13/2012 | CN101572442B Intelligent protection type permanent magnetic contactor capable of performing remote communication |
| 06/13/2012 | CN101496509B Motor control device of electric fishing reel |
| 06/13/2012 | CN101483334B Voltage equalizing protection control circuit for series IGBT |
| 06/13/2012 | CN101371415B Wireless system for one or more electrical switching apparatus |