| 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) |
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| 03/20/2013 | CN102986105A Electronic overcurrent release for circuit breakers |
| 03/20/2013 | CN102985836A Fast distance protection for energy supply networks |
| 03/20/2013 | CN102983579A High-power dynamic switching unit and implementation method thereof |
| 03/20/2013 | CN102983562A Current-limiting protector for electrical fire prevention |
| 03/20/2013 | CN102983555A Semiconductor integrated circuit, protection circuit and battery pack |
| 03/20/2013 | CN102983547A Uninterruptible power supply type leakage test comprehensive protection system |
| 03/20/2013 | CN102983546A Self-restoring overvoltage and undervoltage protection device capable of closing or breaking at zero crossing points |
| 03/20/2013 | CN102983545A Direct current (DC) overcurrent protection device |
| 03/20/2013 | CN102983544A 过电流保护装置 Overcurrent protection devices |
| 03/20/2013 | CN102983543A Reclosing device for utilizing three-phase voltage to supply power |
| 03/20/2013 | CN102983542A Control panel of reclosing device |
| 03/20/2013 | CN102983541A Relay protection constant value remote modification system |
| 03/20/2013 | CN101924344B Multifunction control and protection switch device |
| 03/20/2013 | CN101902025B Method for protecting safety of circuit and device thereof |
| 03/20/2013 | CN101755371B Charge monitoring device |
| 03/19/2013 | US8401822 System, wellness circuit and method of determining wellness of a rotating electrical apparatus |
| 03/19/2013 | US8400746 Bypass capacitor with reduced leakage current and power-down control |
| 03/19/2013 | US8400745 Fuse apparatus |
| 03/19/2013 | US8400744 Earth leakage detection module with robust transient suppression |
| 03/19/2013 | US8400741 Programmable echo signal switch with T/R switch for ultrasound beamforming integrated circuit and method |
| 03/19/2013 | US8400114 DC power tool with a safety detection device |
| 03/19/2013 | US8398188 Recording apparatus |
| 03/14/2013 | WO2013036696A1 Motor protection and control apparatus, system, and/or method |
| 03/14/2013 | WO2013036670A1 Starter apparatus, system, and/or method for a separable-winding motor |
| 03/14/2013 | WO2013036656A1 Integrated bypass apparatus, system, and/or method for variable-frequency drives |
| 03/14/2013 | WO2013036385A1 Optimized protection coordination of electronic-trip circuit breaker by short circuit current availability monitoring |
| 03/14/2013 | WO2012125238A3 Methods, systems, and apparatus and for detecting parallel electrical arc faults |
| 03/14/2013 | US20130063989 Interface arrangement between ac and dc systems using grounding switch |
| 03/14/2013 | US20130063852 Snubber circuit and method of using bipolar junction transistor in snubber circuit |
| 03/14/2013 | US20130063851 Appartus and method for protecting signal and communication lines from very high voltage and transient pulses |
| 03/14/2013 | US20130063850 Overcurrent protection circuit |
| 03/14/2013 | US20130063849 Overvoltage protection circuit and portable electronic device having the same |
| 03/14/2013 | US20130063848 Safety shut-off device and method of use |
| 03/14/2013 | US20130063842 Earth leakage detector with suffered current-blocking function |
| 03/14/2013 | US20130063280 Method, system and device of phase enable or disable functionality in a meter |
| 03/14/2013 | DE102011082357A1 Apparatus for electrical power supply to current source for coupling to power-board network of motor vehicle, has control unit designed such that shutdown of current source is performed, if output voltage exceeds upper threshold value |
| 03/14/2013 | CA2845769A1 Optimized protection coordination of electronic-trip circuit breaker by short circuit current availability monitoring |
| 03/13/2013 | EP2568559A2 Micro electro-mechanical switch (MEMS) based over current motor protection system |
| 03/13/2013 | EP2568558A2 Overvoltage protection circuit and portable electronic device having the same. |
| 03/13/2013 | EP2568557A1 Method of operating a residual current circuit breaker and residual current circuit breaker for a frequency converter |
| 03/13/2013 | EP2567390A1 Current measuring method for switchgear having current paths connected in parallel |
| 03/13/2013 | CN202798648U Low-side switch output circuit with short-circuit protection |
| 03/13/2013 | CN202798026U Power supply device and electric scooter |
| 03/13/2013 | CN202797921U Novel energy-saving protective device |
| 03/13/2013 | CN202797915U Two-pole self-recovery voltage deviation protector |
| 03/13/2013 | CN202797914U Self-reclosing overvoltage undervoltage protector |
| 03/13/2013 | CN202797912U Intelligent high-voltage switch complete device having functions of grounding protection and reclosure |
| 03/13/2013 | CN202797900U Over-current protection circuit and step-down switch power supply device utilizing the same |
| 03/13/2013 | CN202797897U Default-phase protective alarm apparatus of breaker |
| 03/13/2013 | CN202797892U High-voltage resistant talkback emergency power supply |
| 03/13/2013 | CN202797890U Direct current inverter air conditioner and compressor driving current protection circuit |
| 03/13/2013 | CN202797887U Printer nozzle overheating protection circuit and printer |
| 03/13/2013 | CN202797885U Leakage protection switch circuit |
| 03/13/2013 | CN202797884U Intelligent household breaker |
| 03/13/2013 | CN202797883U Earth leakage protection device of tundish electro-magnetic induction constant-temperature refining system |
| 03/13/2013 | CN202797882U Contact protecting device for electric-car power cell boxes |
| 03/13/2013 | CN202797881U Power supply protection circuit module |
| 03/13/2013 | CN202797880U Measure and control instrument protective circuit for preventing 485 bus from being misconnected to 220V power line |
| 03/13/2013 | CN202797879U Overvoltage protection circuit |
| 03/13/2013 | CN202797878U Lightning-proof power-saving device for television |
| 03/13/2013 | CN202797877U Overvoltage and undervoltage protection system |
| 03/13/2013 | CN202797876U Mining intrinsic safety type light-emitting diode (LED) display screen |
| 03/13/2013 | CN202797875U Commercial power over-voltage and under-voltage automatic protector |
| 03/13/2013 | CN202797874U Over-voltage protection circuit and mobile terminal |
| 03/13/2013 | CN202797873U Light-emitting diode (LED) short-circuit protection circuit |
| 03/13/2013 | CN202797872U Novel short-circuit protection circuit |
| 03/13/2013 | CN202797871U Lightning protection automatic reset power supply |
| 03/13/2013 | CN202797870U Overload short-circuit protective circuit of direct-current power supply |
| 03/13/2013 | CN202797869U Motorcycle USB interface power supply |
| 03/13/2013 | CN202797868U Color selector driver board protection circuit |
| 03/13/2013 | CN202797867U Short circuit protection circuit and power supply circuit provided with the same |
| 03/13/2013 | CN202797866U Power lightning arrester for over-current protection device |
| 03/13/2013 | CN202797865U Short circuit protector of M-BUS communication bus |
| 03/13/2013 | CN202797864U Electricity leakage measurement and control system |
| 03/13/2013 | CN202797863U Time sequence protection circuit of electronic product |
| 03/13/2013 | CN102969697A Control method for overvoltage protection and control circuit used for power supply controller |
| 03/13/2013 | CN102969695A Grounding forecasting method in neutral-point low-resistance grounding mode |
| 03/13/2013 | CN102969694A Terminal operator protection circuit of direct-current power supply system |
| 03/13/2013 | CN102969693A Electronic control valve driving protective circuit of railway vehicles |
| 03/13/2013 | CN102969692A Branch coefficient calculation method based on real-time data of power grid |
| 03/13/2013 | CN102074994B Charging device of direct-current (DC) system |
| 03/13/2013 | CN102035192B Uninterrupted power supply control signal interlocking protection circuit |
| 03/13/2013 | CN102033565B 电压基准电路 Voltage reference circuit |
| 03/13/2013 | CN101983462B Electric protection element with a short circuit device |
| 03/13/2013 | CN101789581B Four-stage selective leakage rapid protection system of IT grouping power grid |
| 03/13/2013 | CN101752832B Electric-leakage circuit breaker |
| 03/13/2013 | CN101673929B A circuit breaker |
| 03/13/2013 | CN101578747B Power filter |
| 03/13/2013 | CN101345408B Method for assigning a fault current to one of the three phase currents of a three-phase system |
| 03/12/2013 | US8396680 System and method for identifying issues in current and voltage measurements |
| 03/12/2013 | US8395874 Multiphase current supplying circuit, driving apparatus, compressor, and air conditioner |
| 03/12/2013 | US8395871 Device and method for detecting faulted phases in a multi-phase electrical network |
| 03/12/2013 | US8395869 ESD protection circuit with EOS immunity |
| 03/12/2013 | US8395868 Short circuit limitation device in a low voltage system |
| 03/12/2013 | US8395489 Vehicle burglar alarm circuit |
| 03/07/2013 | WO2013032989A1 Methods and system for effectively removing heat from a wireless base station |
| 03/07/2013 | WO2013032044A1 System and method for managing a power distribution system |
| 03/07/2013 | US20130057996 Current generating device |
| 03/07/2013 | US20130057995 Temperature Evaluation Circuit |
| 03/07/2013 | US20130057990 Electrical device with miswire protection and automated testing |