| 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) |
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| 03/19/2008 | CN201038734Y Automobile voltage stabilizer |
| 03/19/2008 | CN201038733Y Open-phase protection AC contactor |
| 03/19/2008 | CN201038732Y Electrical equipment protecting device |
| 03/19/2008 | CN201038731Y Overvoltage protection circuit |
| 03/19/2008 | CN201038730Y Creepage current measuring device |
| 03/19/2008 | CN201038729Y Electric water heater electricity-proof device with time-sharing detection function |
| 03/19/2008 | CN201038728Y Electric water heater electricity-proof device with time-sharing detection function |
| 03/19/2008 | CN201038727Y Electric water heater electricity-proof device with time-sharing detection function |
| 03/19/2008 | CN201038726Y Extruder electric heating protection circuit |
| 03/19/2008 | CN201038725Y Medical appliance overcurrent protection circuit |
| 03/19/2008 | CN201038724Y Over-current protector for railway electrical zone rail circuit |
| 03/19/2008 | CN201038723Y Railway signal dedicated intelligent circuit breaker |
| 03/19/2008 | CN201038722Y Electrical switch quick breaking controller |
| 03/19/2008 | CN201038721Y Electricity-limiting switch |
| 03/19/2008 | CN201038720Y Three-phase brushless DC motor temperature protection device |
| 03/19/2008 | CN201038719Y Controller possessing spare quick brake-separating judging circuit |
| 03/19/2008 | CN201038718Y Device for implementing transformer substation segmental time-delay automatic reclosing by voltage conversion |
| 03/19/2008 | CN201038717Y Automatic reclosing switch protection switch |
| 03/19/2008 | CN201038716Y Fuse link automatic conversion alarming circuit |
| 03/19/2008 | CN201038715Y Neutral conductor breakage detecting and protection device |
| 03/19/2008 | CN201038714Y Integral protection device for coal mine small-size explosion-proof magnetic switch |
| 03/19/2008 | CN201038713Y High voltage circuit breaker fast protection control system |
| 03/19/2008 | CN201038480Y Creepage protecting socket |
| 03/19/2008 | CN201038476Y Electroshock safety plug |
| 03/19/2008 | CN201038098Y Single-phase over-voltage safeguard electrical apparatus release |
| 03/19/2008 | CN101145689A A DC lightning prevention unit and its alarming circuit |
| 03/19/2008 | CN101145683A Control device for residual current of low-voltage power grid |
| 03/19/2008 | CN101145682A Switch controller and switch device |
| 03/19/2008 | CN101145681A Multi-function integrated relay protection device for mine |
| 03/19/2008 | CN100375937C Safety control device |
| 03/18/2008 | US7346895 Method of tracing data collection |
| 03/18/2008 | US7346699 Reliable multicast |
| 03/18/2008 | US7346623 System and method for generating and managing quick recovery volumes |
| 03/18/2008 | US7345862 Protective relay for power systems having fault distance measurement filter logic |
| 03/18/2008 | US7345860 Load recognition and series arc detection using load current/line voltage normalization algorithms |
| 03/18/2008 | US7345857 Power supply with surge voltage control functions |
| 03/18/2008 | US7345856 Method and apparatus for arc suppression in scanned ion beam processing equipment |
| 03/18/2008 | US7345531 Comparator circuit, related method of comparing a vector to comparison boundaries and transmitter employing the same |
| 03/18/2008 | US7345383 Abnormality detection apparatus for a power feed circuit |
| 03/18/2008 | US7345379 Power converter with voltage and current fault setting |
| 03/18/2008 | CA2243334C A ground fault protection circuit for multiple loads with separate gfci branches and a common neutral for the gfci electronics |
| 03/18/2008 | CA2156628C A compact coil assembly for transient voltage protection |
| 03/13/2008 | WO2007134767A3 Device for automatically switching off or switching an electrical consumer |
| 03/13/2008 | US20080062606 Surge protection device for coaxial cable with diagnostic capabilities |
| 03/13/2008 | US20080062604 Fet monitoring and protecting system |
| 03/13/2008 | US20080062603 Apparatus and method for overload protection of electronic circuitry |
| 03/13/2008 | US20080062602 Driver Circuit |
| 03/13/2008 | US20080062593 Leakage current detection and protection circuit for a power plug |
| 03/13/2008 | US20080062592 Aircraft applicable current imbalance detection and circuit interrupter and packaging therof |
| 03/13/2008 | US20080062591 Automatic power-off protection apparatus |
| 03/13/2008 | US20080062590 Powered communications interface with DC current imbalance compensation |
| 03/13/2008 | US20080061876 Methods and apparatus to reduce substrate voltage bounces and spike voltages in switching amplifiers |
| 03/12/2008 | EP1898225A1 System and method for detecting leak current |
| 03/12/2008 | EP1896917A1 Heating device for fluids and domestic appliance |
| 03/12/2008 | EP1896859A1 Apparatus for the detection of a current and method for operating such an apparatus |
| 03/12/2008 | EP1709503A4 Ballast protecting device |
| 03/12/2008 | CN201035359Y Single-chip control device of intelligent standby electricity-saving plug seat |
| 03/12/2008 | CN101142728A Overload relay and its operation method |
| 03/12/2008 | CN101142649A Electric supply circuit, switch actuating device and method for operating said switch actuating device |
| 03/12/2008 | CN101141060A Auto-power-off control device |
| 03/12/2008 | CN101141059A Power-off protection circuit |
| 03/12/2008 | CN101141058A Distribution circuit electric voltage over-deviation protectors |
| 03/12/2008 | CN101138971A Car lamp control switch |
| 03/12/2008 | CN100375359C All fault-current sensitive protection device |
| 03/12/2008 | CN100375358C Difference current protector |
| 03/12/2008 | CN100375357C Double end testing method in power transmission line longitudinal difference protection |
| 03/11/2008 | US7343520 Common built in test (BIT) software architecture |
| 03/11/2008 | US7342763 Fuel system safety device for run-dry conditions |
| 03/11/2008 | US7342761 Apparatus and method for limiting application of electrical power to a load |
| 03/11/2008 | US7342760 Circuit arrangement for protection against electrostatic discharge and voltage regulating device having a circuit arrangement |
| 03/11/2008 | US7342758 Method and system for detecting stand-alone operation of a distributed generating system |
| 03/11/2008 | US7342329 Power supply for electrical domestic appliances and domestic appliances for co-action with such a power supply |
| 03/11/2008 | CA2344241C Method and device for locating an insulation fault in an electric cable |
| 03/11/2008 | CA2249093C In-line cord ground fault circuit interrupter |
| 03/06/2008 | WO2008027058A2 Electrostatic discharge protection using conductive nanoparticles |
| 03/06/2008 | WO2008025309A1 Differential protection method and differential protection unit |
| 03/06/2008 | WO2007124079A3 Esd clamp control by detection of power state |
| 03/06/2008 | US20080059761 Fault tolerant cell array architecture |
| 03/06/2008 | US20080058965 Method and system for monitoring and control of complex systems based on a programmable network processor |
| 03/06/2008 | US20080055808 Parallel Analog and Digital Timers in Power Controller Circuit Breaker |
| 03/06/2008 | US20080055807 Power Switching Apparatus With Overload Protection |
| 03/06/2008 | US20080055801 Ground fault interrupter for extension cords |
| 03/06/2008 | US20080055800 System for optically detecting an electrical arc in a power supply |
| 03/06/2008 | US20080054728 Systems and methods for providing electrical power from an alternating current power source |
| 03/05/2008 | EP1894283A1 Fault current analyser for detecting a fault current and a fault current detection device |
| 03/05/2008 | CN201032712Y Auxiliary electric appliance auto power-off power supply control circuit |
| 03/05/2008 | CN201032686Y Overvoltage protection device for batteries charger |
| 03/05/2008 | CN201032683Y Overcurrent protection circuit |
| 03/05/2008 | CN201032682Y Reclosed controller capable of distinguishing earth object |
| 03/05/2008 | CN201032681Y Household creepage breaker capable of preventing thunder surge current |
| 03/05/2008 | CN201032621Y Short current protector of plastic case breakers |
| 03/05/2008 | CN201031428Y Dual electric protection water saving closet based on buttocks self-cleaning type flushing technology |
| 03/05/2008 | CN101138139A Leakage current detection and interruption circuit |
| 03/05/2008 | CN101136548A Creepage protecting socket |
| 03/05/2008 | CN101136547A Short circuit protection circuit of DC power supply |
| 03/05/2008 | CN101136546A Intelligentized electric energy management system assembled device |
| 03/05/2008 | CN100373731C Lightningproof circuit and immersion type piezoresistance liquid level transmitter with the same |
| 03/05/2008 | CN100373727C Improved overheat overvoltage protection machine |
| 03/05/2008 | CN100373726C Ratio braking method of variable brake coefficient based on time scale |
| 03/04/2008 | US7340355 Compensated current differential relaying method and system for protecting transformer |