Patents
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)
09/2008
09/03/2008CN101257200A Power supply electric surge intelligent control method and device
09/03/2008CN100416966C Motor controller containing electronic circuit for preventing starting current
09/03/2008CN100416961C Method for prtecting power network
09/03/2008CN100416960C Omnidirectional human safety protector for heat storage electric water heater
09/03/2008CN100416959C Traveling wave protective data acquisition plan considering asynchronous switching of 3-phase breaker
09/02/2008US7421353 Digital integration method
09/02/2008US7420792 Linear charger where the material temperature directly affects the circuit thermal control
09/02/2008US7420791 Fault signature system for power management integrated circuits
09/02/2008US7420790 Integrated circuit with protection against electrostatic damage
08/2008
08/28/2008WO2008103342A1 Device and method for detecting faulted phases in a multi-phase electrical network
08/28/2008WO2007137180A3 Bi-directional ground fault circuit interrupter
08/28/2008US20080208270 High voltage capacitor route with integrated failure point
08/28/2008US20080204959 Method for fault handling in a converter circuit for wiring of three voltage levels
08/28/2008US20080204956 Override protection circuit device
08/28/2008US20080204955 Arc fault circuit interrupter and method of parallel arc fault detection
08/28/2008US20080204954 Method and apparatus to evaluate notches in an electrical power system
08/28/2008US20080204953 System and method for detecting the presence of an unsafe line condition in a disconnected power meter
08/28/2008US20080204951 Safety device for prevention of electrical shocks
08/28/2008US20080203941 Image display apparatus and method of controlling over-current therefor
08/28/2008DE202007006049U1 Bearbeitungstisch für Handwerkzeugmaschinen und Maschinenschalter Working table for hand tools and machines switch
08/27/2008EP1961271A1 Current zero crossing detector in a dimmer circuit
08/27/2008EP1155487B1 Circuit breaker
08/27/2008CN201107836Y Electric security control device for maintaining micro-wave oven
08/27/2008CN201107835Y Household electrical distribution box
08/27/2008CN201107834Y Electric water heater anti-electricity device with time-sharing detection function
08/27/2008CN201107825Y Novel earth leakage protection socket
08/27/2008CN201107824Y Novel earth leakage protection socket
08/27/2008CN201107823Y Novel earth leakage protection socket
08/27/2008CN201107822Y Intelligent type water dispenser power-saving and defending socket
08/27/2008CN101252270A Circuit for preventing phase of three-phase power supply from unbalance
08/27/2008CN101252269A Leakage relay
08/27/2008CN101252240A General-purpose electric appliance diad anti-electricity plug with dual selection functions
08/27/2008CN100414810C Voltage identification short circuit protection constant current voltage stabilizing circuit
08/27/2008CN100414798C Earth leakage protective device and electric switch including the protective device
08/27/2008CN100414797C Method for judging high-voltage polar wire short out of low voltage polar wire in back-to-back DC engineering
08/27/2008CN100414796C Under-voltage isolating monitoring circuit
08/26/2008US7418632 Service processing system, processing result management device and processing result checking method of service processing system
08/26/2008US7418618 Error reporting and correcting method for peripheral
08/26/2008US7417842 Apparatus for power conversion in electric rolling stock
08/26/2008US7417841 Apparatus and method for fusing voltage surge and transient anomalies in a surge suppression device
08/26/2008US7417840 Self-supplied electronic protection device for automatic circuit-breakers
08/26/2008US7417836 Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof
08/26/2008US7417835 Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof
08/26/2008US7417834 Shutoff system for pool or spa
08/26/2008US7417338 Disconnecting device for communications connections
08/26/2008US7417336 Combination current hysteresis and voltage hysteresis control for a power converter
08/21/2008WO2008100925A2 Tamper resistant interrupter receptacle having a detachable metal skin
08/21/2008WO2008100129A1 An overvoltage and/or undervoltage protection device
08/21/2008WO2008099037A1 Electric line protection for determining the direction in which a fault occurs
08/21/2008WO2008098813A1 Electronic security for a power supply
08/21/2008WO2008098532A1 State display device for an electric fuse cut-out
08/21/2008WO2008032225A3 Refrigeration monitor unit
08/21/2008US20080198527 Surge protection device and surge protection apparatus using thereof
08/21/2008US20080198526 Semiconductor device
08/21/2008US20080198525 Method for Current Protection of a Power Switch and Apparatus for Implementing Same
08/21/2008US20080198524 Absorption gas arrestor system
08/21/2008US20080198523 Circuit Breaker for a Solar Module
08/21/2008US20080198522 Device and Method for Supplying Direct Voltage
08/21/2008US20080198521 Circuit Breaker Trip Unit with Zone Selective Interlock and System Monitoring
08/21/2008US20080197715 Method and Device For Controlled Reclosing of a Circuit Breaker
08/21/2008DE60317383T2 Datenwiederherstellungsvorrichtung unter Verwendung von Journaldaten und Identifikationsinformation Data recovery apparatus using journal data and identification information
08/20/2008EP1142119B1 On-chip decoupling capacitor system with parallel fuse
08/20/2008CN201104281Y Chief electric power intelligent controller of multimedia teaching system
08/20/2008CN101248358A Device for current detection and method for operating the same
08/20/2008CN101247695A Filament open-circuit protector for constant-current light modulation system of air station navigation light
08/20/2008CN101247040A Permanent fault discrimination method for electric power line with shunt reactor
08/20/2008CN101247036A Three-phase power supply monitoring circuit
08/20/2008CN101247035A Aftercurrent protecting equipment
08/20/2008CN101247010A Novel creepage protecting socket
08/20/2008CN101244855A Magnetic confinement fluid electricity-prevention apparatus
08/20/2008CN100413216C Circuit device of monitoring power voltage
08/20/2008CN100412740C Source and system which are used to power a removable electric charge
08/20/2008CN100412556C Low-voltage electric network sequential discriminating leakage selecting method and protector
08/19/2008US7415643 Coverage circuit for performance counter
08/19/2008US7415642 Method for creating defect management information in an recording medium, and apparatus and medium based on said method
08/19/2008US7415630 Cache coherency during resynchronization of self-correcting computer
08/19/2008US7414867 Power conversion device
08/19/2008US7414820 Protective apparatus
08/19/2008US7414819 Methods and systems for sectionalizing a looped distribution line in a power distribution system
08/19/2008US7414499 Circuit interrupting device with a single test-reset button
08/19/2008US7414335 Inrush current controller
08/14/2008WO2008097982A1 Fuse saving power distribution system fault protection
08/14/2008WO2008064914A3 Calibrating a powered actuator
08/14/2008WO2008063859A3 Adaptive relaying controlled by autonomous event detection
08/14/2008US20080192400 Overload and Short-Circuit Protection Device With a Breaker Ribbon
08/14/2008US20080192399 Secondary battery apparatus and a protection circuit thereof
08/14/2008US20080192397 Circuit and method for short circuit protection
08/14/2008US20080192396 Over-voltage protection circuit and method thereof
08/14/2008US20080192394 Surge Protection Device
08/14/2008US20080192393 Novel circuit interrupting device with end of life testing functions
08/14/2008US20080192389 Arc suppression device, system and methods for liquid insulated electrical apparatus
08/14/2008DE102007006564A1 Line safety switch or circuit-breaker comprise input terminal and output terminal, which are connected by current path, where device measures phase of alternating current
08/13/2008EP1956494A2 Controller having discrete driver circuitry connected to a single processor port
08/13/2008EP1955347A2 Circuit breaker including open neutral interlock
08/13/2008CN201100939Y Intelligent protector for electric spanner
08/13/2008CN101242095A A permanent failure judgement method for power transmission line with parallel reactor
08/13/2008CN101242090A Over-voltage protector
08/13/2008CN101242089A Method of forming an over-voltage protection circuit and structure therefor
08/13/2008CN101242088A Interruption line protector
08/13/2008CN100411271C Method for determining abnormal reversion of DC engineering power without influence by induced voltage