Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
09/2010
09/21/2010US7799448 Battery pack for cordless devices
09/16/2010US20100232081 Method and Apparatus for Over-voltage Protection With Breakdown-Voltage Tracking Sense Element
09/16/2010US20100232080 Separating device having an energy storage for an energy-conducting electric lead
09/15/2010CN201584812U Domestic intelligent power distribution terminal
09/15/2010CN201584785U Isolation transformer type multi-level voltage output movable three-phase stabilized voltage power supply
09/15/2010CN201584764U Pulse DC current leakage protection device
09/15/2010CN201584754U High-voltage testing power supply quickly cutting device
09/15/2010CN201584753U Composite solid-state relay
09/15/2010CN201584752U Electric current limiter
09/15/2010CN201584751U Multifunctional protector
09/15/2010CN201584750U Mining flameproof lighting signal terminal protecting circuit
09/15/2010CN201584749U Pulse DC current leakage and over-voltage protection device
09/15/2010CN201584748U Electromagnetic leakage switch
09/15/2010CN201584747U Phase-failure open-circuit protector
09/15/2010CN201584746U Three-phase overvoltage detection and protection device
09/15/2010CN201584745U Overvoltage and undervoltage protection device with function of time delay
09/15/2010CN201584744U Intelligent power supply protector
09/15/2010CN201584743U Leakage protecting device for resisting high-frequency interference when starting electronic fluorescent lamp
09/15/2010CN201584742U Mining intrinsic safety power source current chopping self-recovery protecting device
09/15/2010CN201584741U Thyristor automatic reclosing switch
09/15/2010CN201584594U Residual current protection socket
09/15/2010CN201584355U Intelligent permanent-magnetic vacuum circuit breaker
09/15/2010CN201583585U Electromagnet fault monitoring device
09/15/2010CN201582688U LED backlight lamp for liquid crystal display screen
09/15/2010CN201582655U Novel LED aquarium lamp
09/15/2010CN1973414B Single-sensor microcontroller-based approach and system for ground fault circuit interrupters
09/15/2010CN101834428A AC mains over-voltage power-off protector
09/15/2010CN101834427A Short circuit time delay tripping control device for direct current circuit breaker
09/15/2010CN101834426A Protection device of explosion-proof total station instrument and explosion-proof safety power supply
09/15/2010CN101834425A Man-mobile phone-network double-communication power supply
09/15/2010CN101833033A Single-phase guide rail type electric energy meter with communication interface
09/15/2010CN101832647A Water and electricity isolation electric water heater leakage protection method
09/15/2010CN101515709B Charge pump of ultralow mismatching phase-locked loop circuit
09/15/2010CN101459300B Intelligent master-slave socket structure
09/15/2010CN101282034B Protective equipment for supplying power for input end of electric welding machine
09/14/2010US7796368 High-frequency power supply system
09/14/2010US7796367 Electrostatic discharge circuit
09/14/2010US7796366 AC arc fault detection and protection
09/14/2010US7796048 Polyphase source detecting circuit
09/14/2010CA2267005C Test circuit for verifying operation of an arc fault detector
09/10/2010WO2010099585A1 Method and device to identify, record and store traveling wave heads, in electric power systems
09/09/2010US20100225475 Metered Electrical Charging Station With Integrated Expense Tracking And Invoice Capabilities
09/09/2010US20100225177 Swtiching phase offset for contactor optimization
09/09/2010US20100224888 Monolithic cell array display
09/08/2010EP2226913A1 Method for recognising an earth fault in a deactivated three-phase energy transmission network or one which is insulated against earth potential
09/08/2010EP1867027B1 Electricity distribution network with stray voltage monitoring and method of transmission of information on said network
09/08/2010CN201576932U User demarcation intelligent load switch
09/08/2010CN201576928U Intelligent protection controller of low-pressure table region
09/08/2010CN201576927U Leakage protector for medical apparatus and equipment
09/08/2010CN201576926U Direct current current-limiting protection device of power system
09/08/2010CN201576925U Feed detecting and protecting circuit
09/08/2010CN201576924U Main transformer switch trip circuit for trip monitoring
09/08/2010CN201576891U Domestic intelligent electrical security distribution box
09/08/2010CN1928571B AC voltage sampling method and system
09/08/2010CN1838852B Protection method and circuit of electronic amperite
09/08/2010CN101828119A Method for fault location on series compensated power transmission lines with two-end unsynchronized measurement
09/08/2010CN101826793A Energy conversion controller
09/08/2010CN101826721A Low-voltage switch cabinet fault indicating and alarm system
09/08/2010CN101826717A Method for controlling temperature measurement and protection
09/08/2010CN101826716A Low voltage transient voltage suppresser with potential barrier Zener diode
09/08/2010CN101826715A Wiring protection device
09/08/2010CN101826714A Intrinsically-safe type control device
09/08/2010CN101494374B Current protection control method for vacuum circuit breaker
09/08/2010CN101442266B Soft rock electrochemical stabilization DC power supply device
09/08/2010CN101187687B High resistance earthing fault detection method based on transient traveling wave
09/07/2010US7793142 Automatically freezing functionality of a computing entity responsive to an error
09/07/2010US7793115 Method and apparatus for operating a power feed in a computer system
09/07/2010US7791853 Control apparatus of semiconductor switch
09/07/2010US7791852 Electrostatic discharge protection circuit and terminating resistor circuit
09/07/2010US7791851 Cascode combination of low and high voltage transistors for electrostatic discharge circuit
09/07/2010US7791850 Ground fault circuit interrupter control circuit
09/07/2010US7791846 Arc flash detection system, apparatus and method
09/07/2010US7791494 Voltage monitoring device
09/07/2010US7791351 Method for detecting electrical ground faults
09/07/2010US7790982 Electrical wiring device with a center nightlight and a plurality of safety features
09/05/2010CA2695834A1 Detecting and sensing actuation in a circuit interrupting device
09/05/2010CA2695727A1 Detecting and sensing actuation in a circuit interrupting device
09/02/2010WO2010018454A3 Method for preventing electric shock by contact with connected-to-ground electric appliances and installations, and apparatus therefor
09/02/2010US20100220424 Method of atmospheric discharge energy conversion, storage and distribution
09/02/2010US20100220422 Circuit Protection Device
09/02/2010US20100220420 Voltage protection circuit
09/01/2010EP2223404A1 Transformer inrush current detector
09/01/2010EP2223403A1 Fault direction determination
09/01/2010EP2223402A1 Fault current limiter incorporating a superconducting article
09/01/2010CN201570978U Mine intrinsic safety type uninterruptible power supply
09/01/2010CN201570912U 10kV subdistrict power supply intelligent system
09/01/2010CN201570904U Three-phase intelligent alternating current power distribution box
09/01/2010CN201570849U Multifunctional electric leakage protector
09/01/2010CN201570848U Power supply protection circuit and household electric appliance
09/01/2010CN201570847U Automatic corrector for reversed connection between phase line and zero line
09/01/2010CN201570846U Bi-feedback DC power short-circuit protection circuit
09/01/2010CN201570845U Anti-trip circuit of handcart type circuit breaker
09/01/2010CN201569922U Digital water level controller
09/01/2010CN1866043B System and method for determining location of phase-to-earth fault
09/01/2010CN101820178A System for compatibly supplying energy to new energy automobiles and traditional automobiles
09/01/2010CN101820164A Current leakage detection module and current leakage protection circuit breaker with current leakage detection module
09/01/2010CN101820163A Current leakage detection protection module
09/01/2010CN101820162A Overcurrent protector
09/01/2010CN101820161A Power detection control circuit
09/01/2010CN101820160A Optical coupling isolation device
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