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)
02/2008
02/07/2008US20080030913 Power semiconductor device
02/07/2008US20080030910 Self protecting output stage
02/06/2008EP1884005A1 Method and apparatus for improving operational reliability during a loss of a phase voltage
02/06/2008EP1883828A1 Circuit protection device and test facility to simulate a fault condition
02/06/2008CN201018518Y Ethernet power supply overvoltage protector
02/06/2008CN201018290Y Electric charge adjusting controller of low-voltage distribution system
02/06/2008CN201018284Y Economically intelligent synthetic power distribution unit
02/06/2008CN201018275Y Duplicate power supply loop network single phase earthing time sequence identification route selection device
02/06/2008CN201018265Y Electronic control apparatus used for electric leakage protection
02/06/2008CN201018264Y Electric leakage protection circuit with life termination detecting and display function
02/06/2008CN201018263Y Low-voltage circuitry three-phase unsymmetrical fault synthetic protection module
02/06/2008CN201018262Y Low-voltage electric network remote distance short-circuit fault sensitive protection module
02/06/2008CN201018261Y Protective circuit for single phase voltage abnormity
02/06/2008CN201018260Y Phase-lack protective equipment for low voltage three-phase power utilization equipment
02/06/2008CN201018259Y Protective equipment of contactor for preventing instant power-off
02/06/2008CN201018258Y Overvoltage circuit protector
02/06/2008CN201018257Y Creepage breaker with creepage early warning device
02/06/2008CN201018256Y Electricity-proof wall detection chip of current type embedded D/A conversion zero ground wire detection interface
02/06/2008CN201018255Y Intelligent lightning protection device
02/06/2008CN201018254Y Intelligent controller of air switch
02/06/2008CN201018126Y Creepage protecting socket with service life expiration detecting function
02/06/2008CN201018122Y Lightning protection plug
02/06/2008CN201017762Y Current mutual inductor special for self-power type overcurrent and earth fault protection relay
02/06/2008CN201017250Y Complete digital multifunctional experimental laboratory controllable power-supply apparatus
02/06/2008CN101120496A Device for inductive direct current detection and temperature response compensation of the converter permeability by adapting the frequency of the impressed alternating current
02/06/2008CN101120495A Methods and circuits for distributing power to spd loads
02/06/2008CN101119033A Power socket device dedicated for charger and power source transmission method
02/06/2008CN101119027A Overcurrent protection circuit
02/06/2008CN101119021A Over voltage protection circuit and method thereof
02/06/2008CN101119020A Terminal equipment charging overvoltage protective device and method
02/06/2008CN101119019A Power supply circuit capable of automatic cut-off loop
02/06/2008CN101118825A Fuse system with serviceable connections
02/06/2008CN100367623C Electrical system for a ship
02/06/2008CN100367617C Overload current protection apparatus
02/06/2008CN100367593C All fault-current sensitive protection device
02/06/2008CN100367592C Detecting and protecting method and device for exception of circuit
02/06/2008CN100367439C Active part for a surge arrester
02/06/2008CN100366988C Omnidirectional human safety protector for forced exhausting gas water heater
02/05/2008US7328366 Method and system for reciprocal data backup
02/05/2008US7327544 Battery protection device
02/05/2008US7327543 Method and device for switching a semi-conductor circuit breaker
02/05/2008US7327541 Operation of dual-directional electrostatic discharge protection device
02/05/2008US7326964 Light emitting diode package with protective function against electrostatic discharge
01/2008
01/31/2008US20080025058 Automatic power adapter
01/31/2008US20080024949 Method and System for Automatic Attempted Recovery of Equipment from Transient Faults
01/31/2008US20080024945 Circuit protection device with automatic monitoring of operation fault
01/31/2008US20080024944 Ground fault circuit interrupter device
01/31/2008US20080024943 Ground fault circuit interrupter device
01/31/2008US20080024942 Ground fault circuit interrupter device
01/31/2008US20080024252 Ground fault circuit interrupter device
01/31/2008US20080024099 Power Supply Apparatus
01/31/2008US20080024077 Portable Linear Actuator and a Method of Limiting the Maximum Force of a Motor of Such an Actuator
01/31/2008US20080024012 Power device configuration with adaptive control
01/31/2008DE10307006B4 Schaltungsanordnung zur Steuerung des Einschaltstromes eines anschließbaren elektrischen Verbrauchers Circuit arrangement for controlling the inrush current of an electrical consumer connectible
01/30/2008EP1883142A1 Communication line protection
01/30/2008CN201015166Y Signal lightning protection type automatic reclosed switch
01/30/2008CN201015154Y Electromagnetic creepage protecting socket
01/30/2008CN201015153Y Creepage protecting socket with service life expiration detecting function
01/30/2008CN101114824A Linkage device for AC two-wire type solid state switch
01/30/2008CN101114769A Electric equipment protecting means
01/30/2008CN101114768A Method for performing malfunction arc self-examination by analogue signal produced from microprocessor
01/30/2008CN100365933C Electric window drive apparatus
01/30/2008CN100365901C Circuit for displaying exception of three-phase shock wave absorber and multi-end fuse
01/30/2008CN100365900C High-voltage transmission circuitry null sequence directional element for power system
01/30/2008CN100365899C High roltage circuit high resistance grounding protective method
01/30/2008CN100365898C Anti-current mutual inductor saturated conventional difference current trajectory scanning and discrimination method
01/30/2008CN100365897C Voltage regulator with high performance overcurrent protection
01/30/2008CN100365896C Digital directional relay
01/29/2008USRE40037 Electric power system protection and control system
01/29/2008US7325083 Delivering data processing requests to a suspended operating system
01/29/2008US7324876 System for remotely controlling energy distribution at local sites
01/29/2008US7324317 Control of breakdown voltage for microelectronic packaging
01/29/2008US7324315 Protection device
01/29/2008US7324314 Disconnect switch with early break feature
01/29/2008US7324006 Remote display ammeter for power plug or power strip
01/29/2008US7323752 ESD protection circuit with floating diffusion regions
01/24/2008WO2008010495A1 Separator and overvoltage protection device
01/24/2008WO2008009903A1 Method and apparatus of detecting and compensating for dc residual fault currents on electrical systems
01/24/2008WO2008009513A1 Arresting device particularly for a pluggable surge arrester
01/24/2008WO2007135073A3 Detecting faults in power systems
01/24/2008WO2007123835A3 Systems, devices, and methods for temperature compensation in arc fault detection systems
01/24/2008WO2005104325A3 Self tuning high voltage power supply
01/24/2008US20080019071 Surge suppression module with disconnect
01/24/2008US20080019070 Solid state power controller with lightning proctection
01/24/2008US20080019068 Current protection apparatus and method
01/24/2008US20080019067 Current protection apparatus and method
01/24/2008US20080019066 Overload protection method
01/24/2008US20080019063 Method and apparatus for disconnection of a fault current which has occured in an AC power supply system
01/24/2008DE19702094B4 Leistungsschaltvorrichtung Power switching device
01/24/2008CA2657894A1 Method and apparatus of detecting and compensating for dc residual fault currents on electrical systems
01/23/2008CN201011705Y Brushless DC motor circuit for preventing power supply reverse connection
01/23/2008CN201011703Y Zero-breaking protecting control circuit
01/23/2008CN201010969Y Electric protection water saving closet based on breech self-cleaning rinsing technique
01/23/2008CN201010968Y Electric protection water saving closet based on breech self-cleaning rinsing technique
01/23/2008CN101110517A Intelligent electricity-saving electricity-guard socket of drinking machine
01/23/2008CN100364198C Jamming protection device for moving member
01/23/2008CN100364197C Transmission synchronization method of current differential relaying device
01/22/2008US7322029 Method and system for recovering program code in a computer system
01/22/2008US7321483 Power converter
01/17/2008WO2008008091A2 Interruption circuit with improved shield