| 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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| 06/23/2009 | US7550980 System and method for characterizing a load at the end of a cable |
| 06/23/2009 | US7550874 System and method for a power supply device |
| 06/18/2009 | WO2009076545A1 Methods and apparatus for power supply |
| 06/18/2009 | WO2009076410A1 Load restoration for feeder automation in electric power distribution systems |
| 06/18/2009 | WO2009074181A1 Method for setting free detection of out of step condition in electrical power system |
| 06/18/2009 | US20090158088 Self-Correcting Computer |
| 06/18/2009 | US20090154046 Trip unit and electrical switching apparatus including a movable indicator to indicate selection of an arc reduction maintenance system current condition |
| 06/18/2009 | US20090154043 Backlight unit having protection circuit using center-tap |
| 06/18/2009 | US20090154042 Over current protection method and device |
| 06/18/2009 | US20090154041 Load driving device |
| 06/18/2009 | US20090154033 Electrical Arc Fault Circuit Interrupter Apparatus and Method |
| 06/18/2009 | CA2708705A1 Method for setting free detection of out of step condition in electrical power system |
| 06/17/2009 | EP2071690A2 Overvoltage protection circuit and electronic device comprising the same |
| 06/17/2009 | EP2070172A1 Redundant protective system and method for the redundant monitoring of objects to be protected in an electrical energy supply system |
| 06/17/2009 | EP2070170A1 Method and apparatus for determining circular characteristic |
| 06/17/2009 | EP2070099A2 Current sensing load demand apparatus and methods |
| 06/17/2009 | CN201260066Y Control circuit for multifunctional protection socket |
| 06/17/2009 | CN201260065Y Phase absence detector for three phase power source having timing detection function |
| 06/17/2009 | CN201260064Y Protection device for inputting over or under voltage |
| 06/17/2009 | CN201260063Y Over-voltage protection circuit based on single power supply voltage and electric appliance device having the circuit |
| 06/17/2009 | CN201260062Y Leakage protection device used for high voltage output module |
| 06/17/2009 | CN201260061Y Voltage bi-directional off-limit alarm protector |
| 06/17/2009 | CN101459332A Overvoltage protection device for automobile electric control unit |
| 06/17/2009 | CN101459331A Over voltage protection device, DC to DC voltage convertor and over voltage protection method |
| 06/17/2009 | CN101459330A Instant over current protection method for compressor |
| 06/17/2009 | CN100502189C Overcurrent detecting circuit and power supply device provided with it |
| 06/17/2009 | CN100502188C Electric power circuit protecting apparatus using superconductor |
| 06/17/2009 | CN100502187C Remote controller of overload relay |
| 06/16/2009 | US7549090 Autonomic recovery from hardware errors in an input/output fabric |
| 06/16/2009 | US7549083 Data restoring method and an apparatus using journal data and an identification information |
| 06/16/2009 | US7548405 Systems and methods using diodes to protect electronic devices |
| 06/16/2009 | US7548404 Combination current sensor and relay |
| 06/16/2009 | US7548403 Overcurrent detection circuit |
| 06/16/2009 | US7548402 High voltage pulse generating circuit |
| 06/16/2009 | US7548401 Electrostatic discharge protection structures for high speed technologies with mixed and ultra-low voltage supplies |
| 06/16/2009 | US7548037 Collision monitoring system |
| 06/16/2009 | US7547990 Backup power system for electrical appliances |
| 06/11/2009 | WO2009073059A1 Devices, systems, and methods for managing a circuit breaker |
| 06/11/2009 | WO2009072799A2 Power supply apparatus for telecommunication device having surge protection module |
| 06/11/2009 | WO2009071454A1 Protective relay and human-machine interface therefor |
| 06/11/2009 | WO2009071412A1 Circuit configuration for operating a household appliance |
| 06/11/2009 | WO2009043807A3 Electrical device for low-voltage applications |
| 06/11/2009 | US20090150719 Automatically freezing functionality of a computing entity responsive to an error |
| 06/11/2009 | US20090147424 Circuit breakers with automatic breaker rating |
| 06/11/2009 | US20090147422 Power supply control circuit |
| 06/11/2009 | US20090147418 Ground-fault circuit interrupter with circuit condition detection function |
| 06/11/2009 | US20090147417 GFCI with miswire protection having unitary receptacle and load conductors after proper installation |
| 06/11/2009 | US20090147416 Ground fault circuit interrupter |
| 06/11/2009 | US20090147413 Electric appliance and heating cooking device |
| 06/11/2009 | US20090146228 Microminiature moving device |
| 06/10/2009 | EP2068414A1 Over-current protection, in particular for protecting a device for generating a digital electric signal |
| 06/10/2009 | EP2068413A2 Circuit breakers with automatic breaker rating |
| 06/10/2009 | EP2068338A2 Fault current circuit breaker and method of implementing a self-test for a fault current circuit breaker |
| 06/10/2009 | EP2068336A1 Protective relay and human-machine interface there for |
| 06/10/2009 | EP2067235A2 Power supply and electronic ballast with auxiliary protection circuit |
| 06/10/2009 | EP2067225A2 Hardware based over-current protection circuitry for power distribution systems |
| 06/10/2009 | DE112007001832T5 Systeme und Verfahren für eine Energieüberbrückung bei Antrieben mit variabler Geschwindigkeit Systems and methods for energy buffering at variable speed drives |
| 06/10/2009 | DE10321168B4 Motorsteuereinrichtung mit einer elektronischen Schutzschaltung gegen Einschaltstoßströme Motor control means having an electronic protective circuit against inrush |
| 06/10/2009 | DE10066242B4 Kommunikationsfähiger Leistungsschalter Multifunctional breaker |
| 06/10/2009 | CN201256282Y High stability output overvoltage protection circuit |
| 06/10/2009 | CN201256281Y Circuit for breaker thermal memory |
| 06/10/2009 | CN201256280Y Electric power conversion circuit for residual current actuating relay |
| 06/10/2009 | CN101453114A Electric leakage breaker |
| 06/10/2009 | CN101453113A Grounding fault breaking apparatus having circuit status detection function |
| 06/10/2009 | CN101453112A Overcurrent protection circuit comprising multiple groups of loop load |
| 06/10/2009 | CN101453111A Current comparison type overcurrent circuit breaking controlling method |
| 06/10/2009 | CN101453110A Digital protection control device |
| 06/10/2009 | CN100499305C Quick speed varible-data window phasor solving method |
| 06/10/2009 | CN100499304C Power supply apparatus |
| 06/09/2009 | US7545618 Semiconductor device |
| 06/09/2009 | US7545244 Circuit breaker with independent trip and reset lockout |
| 06/09/2009 | US7545186 Reset circuit |
| 06/04/2009 | WO2008022089A8 Surge suppression system for power over network cables |
| 06/04/2009 | US20090141417 Power supply control apparatus having a function supplying power supply voltage |
| 06/04/2009 | US20090141416 Device for Short-Circuiting Power Semiconductor Modules |
| 06/04/2009 | US20090140579 Relay Switch Including an Energy Detection Circuit |
| 06/04/2009 | DE10028748B4 Energieversorgungssystem für ein Kraftfahrzeug mit einem Niedrigspannungsbordnetz und mit einem Höherspannungsbordnetz Power supply system for a motor vehicle with a low voltage electrical system and a higher-voltage electrical system |
| 06/03/2009 | EP2065993A1 Voltage transformer assembly |
| 06/03/2009 | EP2064793A1 Method for producing a fault signal, which indicates a fault present in a secondary current transformer circuit, and differential protective device |
| 06/03/2009 | EP1623451A4 Thyristor circuit providing overcurrent protection to a low impedance load |
| 06/03/2009 | EP1293077B1 A data transfer and management system |
| 06/03/2009 | EP1006892B1 Surgical system providing automatic reconfiguration |
| 06/03/2009 | CN201252392Y Earth-leakage protector |
| 06/03/2009 | CN201252391Y Automatic leakage and zero-line open-circuit protector |
| 06/03/2009 | CN201252390Y Remote intelligent power supply |
| 06/03/2009 | CN201252389Y Overvoltage protector box |
| 06/03/2009 | CN201252388Y Leakage protector for an APS of an electric locomotive |
| 06/03/2009 | CN101449442A Bi-directional ground fault circuit interrupter |
| 06/03/2009 | CN101449441A Non-intrusive electronic control circuit for detecting broken protector in sealed compressor |
| 06/03/2009 | CN101447663A A hardware protection circuit |
| 06/03/2009 | CN101447662A Method for debugging an auto reclosing switch |
| 06/03/2009 | CN101447661A Control method for automatic reclosing controller |
| 06/03/2009 | CN101447660A Automatic reclosing controller of general low-voltage circuit breaker |
| 06/03/2009 | CN101447659A Fault alarm device and switchboard |
| 06/03/2009 | CN100495849C unbalanced Protection method for TCR circuit |
| 06/03/2009 | CN100495848C Device and method for the differential protection and electrical apparatus including such a device |
| 06/03/2009 | CN100495847C Reverse current measurement and control system (SDA-N) |
| 06/03/2009 | CN100495846C Arc protection and fireproof circuit for power supply cable |
| 06/02/2009 | US7542258 DV/dt-detecting overcurrent protection circuit for power supply |
| 06/02/2009 | US7542257 Power control methods and apparatus for variable loads |