| 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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| 02/04/2009 | EP2020068A1 Device for automatically switching off or switching an electrical consumer |
| 02/04/2009 | EP2020067A1 Device for automatically switching off or switching an electrical consumer |
| 02/04/2009 | EP2020014A1 Switching device |
| 02/04/2009 | CN201191761Y Current protection control device in 24kV vacuum circuit breaker |
| 02/04/2009 | CN201191758Y Five-in-one digital general air conditioner protector |
| 02/04/2009 | CN201191757Y Fast low voltage difference current limiting circuit |
| 02/04/2009 | CN201191686Y Full-function secure plug having alarm device |
| 02/04/2009 | CN201191590Y Circuit breaker having remote control function |
| 02/04/2009 | CN201191589Y Integrated circuit breaker |
| 02/04/2009 | CN101361243A Protective device having a circuit breaker, in particular a low-voltage circuit breaker |
| 02/04/2009 | CN101361004A Method and arrangement for testing a protective device processing digital sampling data |
| 02/04/2009 | CN101359820A Practical electric leakage protector detecting dangerous leakage voltage value |
| 02/04/2009 | CN100459359C Three-phase AC shockproof device for communication equipment |
| 02/04/2009 | CN100459356C Split-phase current phase differential protecting method for extra-high voltage transmission line |
| 02/04/2009 | CN100459355C Transmission line distance protecting method |
| 02/04/2009 | CN100459351C Residual current detection circuit |
| 02/04/2009 | CN100459350C Undervoltage warning method, undervoltage warning circuit and switching power supply |
| 02/04/2009 | CN100459349C Over current and over voltage protection circuit and signal source circuit |
| 02/04/2009 | CN100458755C Ethernet protection system |
| 02/03/2009 | US7486493 Over-power protection circuit for power converter |
| 02/03/2009 | US7486492 Electrical switching apparatus including a second trip circuit responding to failure of a first trip circuit to provide a repetitive signal |
| 02/03/2009 | US7486491 Ground detector and DC-AC inverter for vehicles |
| 02/03/2009 | US7486064 Under voltage lock out circuit and method |
| 02/03/2009 | US7485807 Gas-insulated bus bar component comprising outdoor bushings |
| 01/29/2009 | WO2009014293A1 Earth leakage circuit breaker with function for detecting reverse leakage current |
| 01/29/2009 | WO2009014143A1 Charge monitoring device |
| 01/29/2009 | US20090027822 Transient blocking unit having a fab-adjustable threshold current |
| 01/29/2009 | US20090027820 Semiconductor Integrated Circuit Device |
| 01/29/2009 | US20090027819 Device having failure recovery capabilities and a method for failure recovery |
| 01/29/2009 | US20090027818 Discrete Hot Swap and Overcurrent-Limiting Circuit |
| 01/29/2009 | US20090027817 Overload Relay and Operating Method Thererof |
| 01/29/2009 | US20090027815 Protective Device Having a Circuit Breaker, in Particular a Low-Voltage Circuit Breaker |
| 01/29/2009 | DE102007018814A9 Elektrischer Stromkreis Electrical Circuit |
| 01/28/2009 | EP2018694A2 Detecting faults in power systems |
| 01/28/2009 | CN201188538Y Alarm device for current deviation of juxtaposition operation transformers |
| 01/28/2009 | CN201188536Y Protector for over voltage, undervoltage and lack phase of power supply |
| 01/28/2009 | CN201188535Y Super lightning protection mobile socket |
| 01/28/2009 | CN201188507Y Elevator machinery room interlock electrical distribution box with earth leakage protection |
| 01/28/2009 | CN201188482Y All-around socket with leakage protection |
| 01/28/2009 | CN201188481Y Movable creepage protecting socket |
| 01/28/2009 | CN201188268Y Intelligent remote-measuring remote-control device for distribution room |
| 01/28/2009 | CN101355248A Protective relay system |
| 01/28/2009 | CN101355246A Delaying current protector |
| 01/28/2009 | CN100456594C Selective leakage determining method and leakage determining circuit |
| 01/28/2009 | CN100456257C Apparatus and method for testing multiple hard disk drives using single computer |
| 01/27/2009 | US7483251 Multiple planar inductive loop surge suppressor |
| 01/27/2009 | US7483250 Drive circuit for switching device |
| 01/27/2009 | US7483248 Method and apparatus for detecting current changes in integrated circuits |
| 01/27/2009 | US7483247 Multi-stack power supply clamp circuitry for electrostatic discharge protection |
| 01/27/2009 | US7482799 High-voltage detecting circuit for saving power in standby mode |
| 01/27/2009 | US7481107 Humidity sensor with setting member for setting maximum amount of moisture in humidity sensitive member |
| 01/27/2009 | CA2313631C Ground fault circuit interrupter for circuits operating with non-sinusoidal waveforms |
| 01/27/2009 | CA2216524C Electric arc detector sensor circuit |
| 01/22/2009 | WO2009010084A1 Data concentrator, redundant protection system, and method for monitoring an object to be protected in an electric power grid |
| 01/22/2009 | US20090021881 Overvoltage protection device with improved leakage-current-interrupting capacity |
| 01/22/2009 | US20090021880 Multi-level electronic protection system providing safe fault recovery for multiple digital control outputs |
| 01/22/2009 | US20090021879 Apparatus and method for fault current interruption |
| 01/22/2009 | US20090021878 Method and adaptive distance protection relay for power transmission lines |
| 01/22/2009 | US20090021877 Method and apparatus for anti-islanding of distributed power generation systems |
| 01/22/2009 | US20090021876 Circuit Arrangement and Method for Detecting the State of a Circuit Protection Element |
| 01/22/2009 | US20090021874 A method of providing a secondary means of overload protection and leakage current protection in applications using solid state power controllers |
| 01/22/2009 | US20090021872 ESD protection circuit with active triggering |
| 01/22/2009 | US20090021871 Energy Storage Pack Having Overvoltage Protection and Method of Protection |
| 01/22/2009 | US20090021077 Device, system and method for charger switch adaptor |
| 01/21/2009 | EP2017934A2 Method of providing a secondary means of overload protection and leakage current protection in applications using solid state power controllers |
| 01/21/2009 | EP2017871A2 Apparatus and method for fault current interruption |
| 01/21/2009 | EP2016658A1 An off-mains switch and a control box for electrically driven articles of furniture |
| 01/21/2009 | CN201185346Y Lightning-proof device for power supply |
| 01/21/2009 | CN201185345Y Three-phase four-wire zero-lack protector for low-voltage network |
| 01/21/2009 | CN201185343Y Low-voltage protection device for vehicle-mounted television set |
| 01/21/2009 | CN201185339Y AC sampling module |
| 01/21/2009 | CN201185337Y Multifunctional over-pressure, delaying, display protection switch |
| 01/21/2009 | CN201185336Y Electronic device with leakage current protection |
| 01/21/2009 | CN201185335Y Three-phase current protective circuit |
| 01/21/2009 | CN201185273Y Power-supply plug with cable earth leakage protection function |
| 01/21/2009 | CN201184895Y Indication device for generating residual current |
| 01/21/2009 | CN101351941A Virtual closed loop power distribution system and method |
| 01/21/2009 | CN101350532A Over-voltage protected battery charger with bypass |
| 01/21/2009 | CN101350516A Circuit and method for protecting energy storage apparatus |
| 01/21/2009 | CN101350514A Current-limiting arc-extinguishing shunted exciter tripping type earthing short circuit protection device |
| 01/21/2009 | CN101350513A Apparatus and method for fault current interruption |
| 01/21/2009 | CN101350512A Over current protective system |
| 01/21/2009 | CN101350511A Twofold startup method protected by microcomputer protecting equipment |
| 01/21/2009 | CN100454710C Over-voltage protector |
| 01/21/2009 | CN100454709C Apparatus for detecting over current of motor in vehicle |
| 01/21/2009 | CN100454708C Magnetic disc array system and electric source protector |
| 01/21/2009 | CN100454707C Sensitive ground fault detection system for use in compensated electric power distribution networks |
| 01/21/2009 | CN100454706C Control and protection module of a switch device |
| 01/21/2009 | CN100454705C Arc discharge protector |
| 01/21/2009 | CN100454423C Method and system for managing shortage position in data storage medium |
| 01/21/2009 | CN100454183C System linkage apparatus, setting apparatus for system linkage apparatus and method of setting set values of system linkage apparatus |
| 01/21/2009 | CN100454031C Single-phase ground wire selecting equipment and method of neutral-point uneffect earthed system |
| 01/20/2009 | US7480831 Method and apparatus for recovering from a failed I/O controller in an information handling system |
| 01/20/2009 | US7480156 Tapped inductor power conversion networks |
| 01/20/2009 | US7480127 Power distribution bus with protection and alarming |
| 01/20/2009 | US7480126 Protection and voltage monitoring circuit |
| 01/20/2009 | US7480125 Constant voltage circuit, system power device and method of controlling system power device |
| 01/20/2009 | US7480124 Detection of an AC input phase-loss on a multi-phase AC servo drive |
| 01/20/2009 | US7480123 Electrical receptacle |
| 01/17/2009 | CA2637087A1 Apparatus and method for fault current interruption |