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)
01/2010
01/27/2010CN201393045Y Single-phase intelligent safety-protection electronic control device
01/27/2010CN201393044Y Relay protective device
01/27/2010CN201392370Y Mimic-disconnecting switch used for protecting tester
01/27/2010CN101635447A Circuit load loop electronic monitor
01/27/2010CN101635446A Method for processing sample data based on waveform fitting and secondary sampling
01/27/2010CN100586017C Switch voltage stabilizer
01/27/2010CN100585974C Distribution circuit electric voltage over-deviation protectors
01/27/2010CN100585658C CAN bus data collector
01/26/2010US7653516 System and method of establishing a reliability characteristic
01/26/2010US7652863 Semiconductor integrated circuit
01/26/2010US7652862 Hardware based over-current protection circuitry for power distribution systems
01/26/2010US7652861 Overcurrent detecting circuit and reference voltage generating circuit
01/26/2010US7652859 Intelligent electronic device with integrated pushbutton for use in power substation
01/26/2010US7652566 Arc wave generator for testing an arc-fault circuit interrupter
01/24/2010CA2672279A1 Arc detection using discrete wavelet transforms
01/22/2010CA2673162A1 Improved coupling of communications signals to a power line
01/21/2010WO2010006868A1 Method for performing a self-test by a residual current operated device, and residual current operated device
01/21/2010WO2010006632A1 Method for producing a fault signal and electric protective device
01/21/2010US20100014205 Multiple operating voltage electrical surge protection apparatus
01/21/2010US20100014203 Monitoring Method, Circuit, and System
01/21/2010US20100014202 Control Circuit for a Power Field-Effect Transistor and Method for Configuring a Control Circuit for a Power Field-Effect Transistor
01/21/2010US20100014201 Logic output stage of integrated circuit protected against battery inversion
01/21/2010US20100014197 Method and apparatus of detecting and compensating for dc residual fault currents on electrical systems
01/21/2010US20100013394 Ciruitry for portable lighting devices and portable rechargeable electronic devices
01/21/2010DE102008033804A1 Arrangement for switching of short-circuit current in low voltage system for three-phase supply network, has actuators connected with voltage intermediate circuit, where energy required for controlling actuators is provided from conductors
01/20/2010EP2146430A1 Overcurrent protection device
01/20/2010EP2145369A1 Zero sequence current generator
01/20/2010EP2145367A1 Method for determining an adjustment value indicating a ground impedance and measurement device
01/20/2010EP2145343A1 Switching device installable according to different operating configurations
01/20/2010EP1310031B1 Instant tripping device for short circuits in electrical dc and ac networks of surface and underwater vessels, especially combat vessels, and offshore installations
01/20/2010CN201388282Y Electronic alarming type TBU security unit
01/20/2010CN201388074Y Brushless controller capable of automatically charging
01/20/2010CN201388050Y Surge protection device
01/20/2010CN201388042Y Central high-voltage switch equal-height cabinet
01/20/2010CN201388041Y Control circuit of circuit breaker automatic tripping reset structure
01/20/2010CN201388040Y Electricity rationing controller
01/20/2010CN201387994Y Modular distribution cabinet with grounding knife switch
01/20/2010CN201387106Y Novel central air conditioning boost module
01/20/2010CN101630831A Electromagnetic undervoltage release
01/20/2010CN101630830A Electrical load switching-off and switching-on control method
01/20/2010CN100583592C Method, device and apparatus for multiple output distribution
01/20/2010CN100583574C Jack device for traveling
01/20/2010CN100583571C Full-function secure plug
01/20/2010CN100582797C Method and system for identifying faulted phase
01/19/2010US7649724 Protective circuit for a converter
01/19/2010US7649723 ESD protection substrate and integrated circuit utilizing the same
01/19/2010US7649722 Electrostatic discharge protected circuits
01/19/2010CA2474587C Apparatus and methods for restoring traffic during failover in a cable head end
01/14/2010WO2010005987A2 Fault circuit interrupter device
01/14/2010WO2010004260A1 Circuit breaker
01/14/2010WO2010003281A1 Method and system for rearranging sound conductors in parallel lines in power transmission
01/14/2010US20100008008 Discharge gap device and power supply device
01/14/2010US20100008007 Single-Supply Single-Ended High voltage Peak Detector
01/14/2010US20100008006 Power device and safety control method thereof
01/14/2010US20100008005 Apparatus, system, and method for lossless reverse voltage protection
01/14/2010US20100008004 Electrical Over/Under Voltage Automatic Disconnect Apparatus and Method
01/14/2010US20100008000 Ground fault protection circuit for multi-source electrical distribution system
01/14/2010US20100007321 Dynamic electrical converter system
01/14/2010CA2730014A1 Fault circuit interrupter device
01/13/2010EP2144345A1 Power supply system for a three-phase motor with permanent magnets
01/13/2010CN201383774Y Solar energy portable mobile power supply
01/13/2010CN201383761Y Grounded power supply circuit
01/13/2010CN201383693Y Solar charge/discharge controller
01/13/2010CN201383677Y Solid decoupling device
01/13/2010CN201383670Y Digital-type intelligent malignant load recognizer
01/13/2010CN201383669Y Zero-crossing protection relay
01/13/2010CN201383668Y Over-current protection circuit and motor controller applied to same
01/13/2010CN201383667Y DC system intelligent integrated relay
01/13/2010CN201383666Y USB interface protection circuit
01/13/2010CN100581019C Remote short circuit failure detection method for low voltage power grid and sensitivity protection module
01/12/2010US7647525 Resumption of operations following failover in connection with triangular asynchronous replication
01/12/2010US7646578 Filter circuit and filter device
01/12/2010US7646577 Power plugging device with a function of releasing charges from electric surges
01/12/2010US7646576 Apparatus and method for high-voltage transient blocking using low voltage elements
01/12/2010US7646575 Manually-controlled arc flash energy reduction system and method for circuit breaker trip units
01/12/2010US7646574 Voltage regulator
01/12/2010US7646572 Aircraft system and method of arc fault protection for an aircraft system
01/07/2010WO2010001057A2 Method for electrically securing an electrical power supply of an electrically controlled lighting system or system with variable optical properties and use of the electrically secured system
01/07/2010WO2009126669A3 Quarter wave stub surge suppressor with coupled pins
01/07/2010US20100002350 Protective device and method for its operation
01/07/2010US20100002349 By-pass diode structure for strings of series connected cells of a photovoltaic panel
01/07/2010US20100002348 Distributed bus differential protection using time-stamped data
01/07/2010US20100002347 Street furniture safety device
01/07/2010US20100002343 ground fault interrupts for solid state power controllers
01/07/2010DE102008022744B4 Schaltungsanordnung und System zum Einsatz in einem Kraftfahrzeug A circuit arrangement and system for use in a motor vehicle
01/07/2010DE102005006100B4 Sicherheitsschaltung und Verfahren zur Absicherung einer elektronischen Schaltungsanordnung vor Beschädigung bei Verpolung einer angeschlossenen Energieversorgungseinheit Safety circuit and method for securing electronic circuitry from damage due to reverse polarity of a connected power supply unit
01/06/2010EP2141780A1 Phase control switch and switching pole control method in phase control switch
01/06/2010EP2140277A1 Method and apparatus for communicating loss of alternating current power supply
01/06/2010CN201378730Y Power circuit breaker protective circuit
01/06/2010CN201378726Y Keying pulse trigger circuit
01/06/2010CN201378725Y Intelligent controller for power comprehensive protection
01/06/2010CN201378724Y Safety barrier circuit
01/06/2010CN201378663Y Module-type safe power socket board
01/06/2010CN101622765A Voltage protection arrangement for an electronic device
01/06/2010CN101622764A Apparatus for monitoring discharge processes in a conductor of a medium-voltage or high-voltage system
01/06/2010CN101621196A Automatic power-measuring product
01/06/2010CN101621195A Settings emulator for a circuit interrupter trip unit and system including the same
01/06/2010CN100578884C Electric power terminal protectors with automatic load detection
01/06/2010CN100578241C Method and device for oriental insulating barrier in isolated offground AC network
01/05/2010US7643264 Power supply controller and method for controlling power supply circuit