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)
01/2008
01/17/2008WO2007133279A3 Device alert system and method
01/17/2008US20080013240 Low forward voltage drop transient voltage suppressor and method of fabricating
01/17/2008US20080013237 Over voltage protection circuit for gfci devices
01/17/2008US20080013235 Redundant instantaneous trip detection
01/17/2008US20080013227 Self-testing circuit interrupting device
01/17/2008US20080012668 Redundant trip activation
01/17/2008US20080012667 Method and system for time synchronized trip algorithms for breaker self protection
01/17/2008US20080012666 Method and system of current transformer output magnitude compensation in a circuit breaker system
01/17/2008US20080012641 Operational Amplifier
01/17/2008US20080012532 Secondary Battery Protection Circuit with Over Voltage Transient Protection
01/17/2008US20080012429 Fan and switch control device thereof
01/16/2008EP1878100A1 Circuit breaker system
01/16/2008CN201008141Y Two wire terminal intelligent power supply switch
01/16/2008CN201008090Y Electricity-proof device of electric water heater with time-sharing detection function
01/16/2008CN201008089Y Leakage protective unit of flame-proof type vacuum feeder switch for coal mine
01/16/2008CN201008060Y Power off self-locking socket
01/16/2008CN201008052Y All-around safety plug
01/16/2008CN201007801Y Dual-metal sheet temperature controller with safety device
01/16/2008CN101106270A Remote short circuit failure detection method for low voltage power grid and sensitivity protection module
01/16/2008CN101106268A A power testing sampling protection unit
01/16/2008CN101106265A Over current protector circuit of electric backset decelerator controller
01/16/2008CN101106263A Secure protector for power
01/16/2008CN101106262A Dual core intelligent communication control for plastic shell low voltage breaker
01/16/2008CN101106044A Shunt release capable of detecting working state of circuit breaker
01/16/2008CN101105509A Device for preventing electricity theft
01/16/2008CN100362717C Circuit breaker remote service system
01/15/2008US7320087 Information processing apparatus and method, program, and recording medium
01/15/2008US7319922 Protective device and method for installation of a protective function in a protective device
01/15/2008US7319576 Apparatus and method for providing differential protection for a phase angle regulating transformer in a power system
01/15/2008US7319574 Arc fault detection apparatus, method and system for an underground electrical conductor
01/10/2008WO2008005709A2 Over voltage protection circuit for gfci devices
01/10/2008WO2008005512A2 Noise immune rc trigger for esd protection
01/10/2008WO2008004445A1 Protecting apparatus, and protecting method, signal processing method and electrical quantity detecting method employed by the protecting apparatus
01/10/2008WO2007064837A3 A multifunction hybrid solid-state switchgear
01/10/2008WO2006130735A3 Circuit interrupting device having integrated enhanced rfi suppression
01/10/2008US20080010524 Test emulator, test module emulator and record medium storing program therein
01/10/2008US20080010404 Information processing apparatus, storage medium supporting device, and identifier changing method
01/10/2008US20080007886 Adjustable speed drive protection
01/10/2008US20080007882 Noise immune rc trigger for esd protection
01/10/2008US20080007880 Leakage current detector interrupter with continuous duty relay
01/10/2008US20080007878 Interruption circuit with improved shield
01/10/2008DE102006031408A1 Switching device with on and off switching main contact, has release mechanics is provided for interruption of flow path, belonging to welded main contact as well as device displays welded main contact
01/10/2008DE102005013494B4 Optischer Empfänger Optical Receiver
01/10/2008CA2656559A1 Circuit interrupter with live ground detector
01/09/2008EP1876626A2 Circuit breaker and short-circuiter combination
01/09/2008EP1875782A1 Current driver circuit and method of operation therefor
01/09/2008EP1402420A4 Mirroring network data to establish virtual storage area network
01/09/2008CN201004555Y Individual control circuit for multiple power outputs
01/09/2008CN201004549Y Online automatic control instrument for transformer iron core current
01/09/2008CN201004548Y Current leakage protector with zero line breaking protection
01/09/2008CN201004547Y Power integrated protection and monitoring module easy-to-configure
01/09/2008CN101103507A Overcurrent protective circuit, load driving unit, motor driving unit, electrical equipment, and power unit
01/09/2008CN101103428A Fuse state indicating optical circuit and system
01/09/2008CN101102056A Multi-level switch system for power line disconnection protection
01/09/2008CN101102042A A protection device for lightning strike surge protection circuit
01/09/2008CN101102038A Electronic insurance circuit
01/09/2008CN101102037A Digital switchboard
01/09/2008CN101101836A Shunt opening release capable of being controlled by external electricity-breaking protection signal
01/09/2008CN100361360C Switch supply source cut-off type output short-circuit protector
01/09/2008CN100361359C Residual current operated circuit breaker
01/09/2008CN100361123C Whole line and multi-parameter integrated optimizing method for determining lightningproof performance of power transmission line
01/09/2008CN100360949C Fault detection of electric line
01/08/2008US7317604 Over-current protection device
01/08/2008US7317599 Multifactor adaptive auto-reclosing of high voltage transmission lines
01/08/2008US7317400 Self light emitting type display module, electronic appliance loaded with the same module and verification method of faults in the same module
01/08/2008US7317263 Power tool lockdown device
01/03/2008WO2007128414A3 Safety device particularly for electrical appliances
01/03/2008US20080004765 Electronic Control Device and Method for Controlling the Operation of Motor Vehicle Components
01/03/2008US20080002323 Method and protective circuit against overvoltage
01/03/2008US20080002322 Power Supply Control Device
01/03/2008US20080002315 Ground fault interrupts for solid state power controllers
01/03/2008US20080002314 Ground fault circuit interruptor (GFCI) device having safe contact end-of-life condition and method of detecting same in a GFCI device
01/03/2008US20080002313 Circuit interrupting device with automatic test
01/02/2008EP1873883A1 Distance protection relay and method
01/02/2008EP1461626B1 Fault location using measurements from two ends of a line
01/02/2008EP1373045B1 Electric load management center
01/02/2008CN201001051Y Electric load administrative terminal embedded with communication module
01/02/2008CN201001037Y Intelligent loading identification current-limiting controller
01/02/2008CN201001032Y AC voltage-limiting and current-limiting safety explosion-proof DC voltage stabilizing power source device
01/02/2008CN201001025Y Distribution transformer earthing detection alarm system
01/02/2008CN201001024Y Anti-theft automated management system in electric network
01/02/2008CN201001023Y Power supply protective circuit of apparatus instrument
01/02/2008CN201001022Y Test device for aftercurrent simulation
01/02/2008CN201000969Y Security protection plug for preventing fire and damage
01/02/2008CN201000908Y Secondary battery having current voltage protection unit
01/02/2008CN101099279A Local ESD power rail clamp which implements switchable i/o decoupling capacitance function
01/02/2008CN101099278A Electrostatic discharge protection power rail clamp with feedback-enhanced triggering and conditioning circuitry
01/02/2008CN101098076A Transient fault power direction based medium voltage bus protection method
01/02/2008CN101098073A Power supply switch circuit capable of avoiding overgreat load of bus interface and related drive method
01/02/2008CN101097476A Electric power processing system and method thereof
01/02/2008CN100359811C Receiver apparatus and satellite broadcast reception system therewith
01/02/2008CN100359685C ESD protection circuit with control circuit
01/02/2008CN100359417C General purpose standard chip using flag bit to differentiate display mode for wall body super anti-electricity wall socket
01/01/2008US7316004 Organization of test cases
01/01/2008US7315958 Method and system for restoring data redundancy in a storage system without a hot standby disk
01/01/2008US7315790 System, and method for quantifying voltage anomalies
01/01/2008US7315437 Self testing ground fault circuit interrupter (GFCI) with end of life (EOL) indicator, secondary power supply for EOL and self test circuitry, and device for opening line hot when EOL occurs
01/01/2008US7315255 Load status indicator
01/01/2008US7315227 Ground fault circuit interrupters providing end of the life test
01/01/2008US7315097 Power saving control method and device in electronic device, and power saving electronic device