| 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) |
|---|
| 01/23/2013 | CN101340078B Improvements in or relating to current differential protection relays |
| 01/22/2013 | US8358490 Transistor with EOS protection and ESD protection circuit including the same |
| 01/22/2013 | US8358488 Micro-electromechanical system based switching |
| 01/22/2013 | US8358095 Method and system for testing electric motors |
| 01/22/2013 | DE202012104824U1 Vorrichtung zur Erfassung von Fehlerströmen Device for detecting fault currents |
| 01/22/2013 | CA2588819C Metal oxide varistor with built-in alloy-type thermal fuse |
| 01/17/2013 | WO2013009985A1 Transient voltage blocking for powerconverter |
| 01/17/2013 | WO2013009310A1 Relocatable power tap with surge suppression or surge protection and a method for its manufacture |
| 01/17/2013 | WO2013008084A1 System for placing solar power plants into a safe condition |
| 01/17/2013 | WO2013007240A1 Method and device for measuring electric currents by means of a current transformer |
| 01/17/2013 | WO2013007134A1 Short-circuit current limiting and protection device for electrical circuit |
| 01/17/2013 | WO2012156799A3 Trip unit including separable component to save restore settings, and circuit breaker including the same |
| 01/17/2013 | US20130016448 Transient voltage blocking for power converter |
| 01/17/2013 | US20130015721 Energy saving switch device, and method thereof |
| 01/17/2013 | CA2845464A1 Method and device for measuring electric currents by means of a current transformer |
| 01/17/2013 | CA2841935A1 Relocatable power tap with surge suppression or surge protection and a method for its manufacture |
| 01/16/2013 | EP2546943A1 Control system, transformer, security control device, and bitstream memory unit |
| 01/16/2013 | EP2545627A1 Method and apparatus for supervisory circuit for ground fault circuit interrupt device |
| 01/16/2013 | EP2545626A1 Surge protection |
| 01/16/2013 | EP2545625A1 Line protection systems |
| 01/16/2013 | CN202679250U Direct-current source |
| 01/16/2013 | CN202679077U Intelligent power distribution cabinet remote control device |
| 01/16/2013 | CN202679015U Storage battery power supply apparatus for engine rig test |
| 01/16/2013 | CN202678940U An overvoltage protection circuit |
| 01/16/2013 | CN202678933U DC earth leakage protection circuit |
| 01/16/2013 | CN202678932U Three-phase solid-state relay with missing phase-preventing function |
| 01/16/2013 | CN202678931U Control circuit for circuit breaker of prepaid electricity meter |
| 01/16/2013 | CN202678930U Gas meter power-off protection circuit |
| 01/16/2013 | CN202678929U Power-supply multifunctional protection device |
| 01/16/2013 | CN202678928U Device for arc extinction, resonance elimination, wire selection and overvoltage protection |
| 01/16/2013 | CN202678927U Electric shovel handle safety control system |
| 01/16/2013 | CN202678926U Power supply voltage over-voltage and under-voltage protective device |
| 01/16/2013 | CN202678925U Gas meter high voltage protection circuit |
| 01/16/2013 | CN202678924U Automobile short circuit protection circuit |
| 01/16/2013 | CN202678923U Domestic circuit breaker |
| 01/16/2013 | CN202678922U 500kV/220kV weak electromagnetic loop network power limit control device |
| 01/16/2013 | CN202678921U Overcurrent fault alarm device used on high-voltage transmission lines |
| 01/16/2013 | CN202678920U Fuse state monitoring circuit with function of phase-splitting alarming and master alarming |
| 01/16/2013 | CN102884701A A plant for transmitting high voltage DC electric power including overvoltage protection |
| 01/16/2013 | CN102884697A Overvoltage protection circuit for an integrated circuit |
| 01/16/2013 | CN102884694A High-efficiency DC ballast arrangement with automatic polarity protection and emergency back-up for lighting fixture in a suspended DC-powered ceiling system |
| 01/16/2013 | CN102883514A Illumination equipment comprising fluorescent tube and driving method thereof |
| 01/16/2013 | CN102882389A Constant current source |
| 01/16/2013 | CN102882203A Power transmission system, device and protection circuit with power supply protection function |
| 01/16/2013 | CN102882199A Short-trouble current limiter for high-speed self-turn-off device |
| 01/16/2013 | CN102882183A Output leakage protection device |
| 01/16/2013 | CN102882182A Intelligent lightning arrester and using method thereof |
| 01/16/2013 | CN102882181A Reverse protection and overvoltage protection circuit based on bidirectional silicon-controlled thyristor |
| 01/16/2013 | CN102882180A Overload protecting method for electronic chip |
| 01/16/2013 | CN102881437A Current transformer for detecting aftercurrent, and aftercurrent protection device |
| 01/16/2013 | CN101803137B Earth leakage detection circuit |
| 01/15/2013 | US8355230 Extended instantaneous protection |
| 01/15/2013 | US8355229 Semiconductor device with an inductor |
| 01/15/2013 | US8353334 Nano tube lattice wick system |
| 01/10/2013 | WO2013004285A1 System for detecting internal winding faults of a synchronous generator, computer program product and method |
| 01/10/2013 | US20130010396 Voltage Transient Protection Circuitry |
| 01/10/2013 | US20130010395 Overvoltage protection device |
| 01/09/2013 | CN202663346U Field suppression and overvoltage protection device for excitation system of direct current exciter |
| 01/09/2013 | CN202663192U Detection and control integrated user boundary switch |
| 01/09/2013 | CN202663173U Automobile storage battery charging device using dual protection |
| 01/09/2013 | CN202663102U Electric power load detecting system |
| 01/09/2013 | CN202663101U Intelligent low-voltage anti-electric-shock protection device |
| 01/09/2013 | CN202663099U Over-current and over-voltage protector with bimetallic-strip temperature switch |
| 01/09/2013 | CN202663097U Improved structure of safety protection device of low-voltage distribution box |
| 01/09/2013 | CN202663084U Instantaneous power failure protective circuit for direct-current power supply voltage |
| 01/09/2013 | CN202663083U Direct-current high-voltage input protection circuit |
| 01/09/2013 | CN202663082U Direct-current power down early warning signal circuit |
| 01/09/2013 | CN202663081U Shock protector of commercial cartoon game machine |
| 01/09/2013 | CN102870305A Protection circuit, battery control device, and battery pack |
| 01/09/2013 | CN102870304A Protection relay device and protection relay method |
| 01/09/2013 | CN102870303A 断路器面板 Breaker Panel |
| 01/09/2013 | CN102870186A Residual-current circuit breaker |
| 01/09/2013 | CN102868150A Full-current differential protection braking coefficient adaptive regulating method for transmission line |
| 01/09/2013 | CN102868144A Ground fault protecting circuit of photovoltaic inverter |
| 01/09/2013 | CN102868140A Overload alarming device for power transformer |
| 01/09/2013 | CN102868139A Electric shock signal transient component identification method and residual current protection device |
| 01/09/2013 | CN102868138A Overload protection electronic chip device |
| 01/09/2013 | CN102868137A Method and device for controlling ultrahigh-voltage transmission line single-phase automatic reclosing |
| 01/09/2013 | CN102866280A Magnetostrictive open circuit optical control device |
| 01/09/2013 | CN102410123B Double-line plug-in-type startup protector |
| 01/09/2013 | CN101902028B Overcurrent protection circuit |
| 01/09/2013 | CN101802827B Configuration tool and system for intelligent electronic device (protector relay) |
| 01/09/2013 | CN101594723B Backlight driving circuit |
| 01/08/2013 | US8351175 Protective device for load circuit |
| 01/08/2013 | US8351174 Apparatus comprising a brown-out protection circuit for memory devices |
| 01/08/2013 | US8351173 Power supply circuit |
| 01/08/2013 | US8351172 Power supply control apparatus |
| 01/08/2013 | US8351171 Integrated automatic selection of maintenance mode in electronic tripping systems to minimize arc fault energy |
| 01/08/2013 | US8350841 ESD protection circuit and display apparatus using the same |
| 01/08/2013 | US8350573 Method and apparatus for generalized AC and DC arc fault detection and protection |
| 01/08/2013 | US8350519 Passive over/under voltage control and protection for energy storage devices associated with energy harvesting |
| 01/08/2013 | CA2677330C Fuse saving power distribution system fault protection |
| 01/08/2013 | CA2514197C Gfci receptacle having plug blocking means |
| 01/08/2013 | CA2508102C Arc fault circuit breaker and apparatus for detecting wet track arc fault |
| 01/08/2013 | CA2503035C Method and circuit breaker for reducing arc flash during maintenance in a low voltage power circuit |
| 01/03/2013 | WO2013000499A1 Improved reliability in semiconductor device control |
| 01/03/2013 | WO2012141931A3 Electrical load control with fault protection |
| 01/03/2013 | US20130003243 Surge protection element |
| 01/03/2013 | US20130003242 Transient voltage suppressor for multiple pin assignments |
| 01/03/2013 | US20130003240 Composition of a desired trip curve |