Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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01/01/2009 | US20090002904 Peripheral module and peripheral system for an automation system |
01/01/2009 | US20090002902 Superconducting Magnetic Coil with a Quench Protection Circuit, and Mrt Apparatus Embodying Same |
01/01/2009 | US20090002901 Power protection apparatus and electronic control unit |
01/01/2009 | US20090001915 Method and apparatus for active voltage control of electric motors |
12/31/2008 | WO2009001844A1 Battery pack |
12/31/2008 | WO2009001843A1 Battery pack |
12/31/2008 | WO2009000989A2 Method for controlling a rotary electric machine in case of load shedding and corresponding power control module |
12/31/2008 | WO2009000823A1 Method and device for detecting a jam |
12/31/2008 | WO2009000690A1 A washer/dryer |
12/31/2008 | WO2008073277A3 Method and system for video surveillance system motor overcurrent protection |
12/31/2008 | WO2008021440B1 Buck converter fault detection method |
12/31/2008 | WO2008021440A4 Buck converter fault detection method |
12/31/2008 | EP2009794A1 Cutoff relay and method for operating a cutoff relay |
12/31/2008 | EP2009791A1 Power protection apparatus and electronic control unit |
12/31/2008 | EP2009758A1 Method and system of syntonic circuit modulation controlling |
12/31/2008 | EP2008350A1 Device for operating an electric motor |
12/31/2008 | CN201174693Y Wideband low-loss phase splitter having lightning protection function |
12/31/2008 | CN201174622Y Micro-computer type protection measurement apparatus |
12/31/2008 | CN201174604Y Charging and discharging control apparatus |
12/31/2008 | CN201174603Y Solar inverter |
12/31/2008 | CN201174586Y Inverse inserting-preventing circuit |
12/31/2008 | CN201174585Y Remote control protector of diving pump motor |
12/31/2008 | CN201174584Y High temperature burn down protection component of large power motor |
12/31/2008 | CN201174583Y Electric motor protector |
12/31/2008 | CN201174582Y Motor protection controller and transducer |
12/31/2008 | CN201174581Y Motor protector |
12/31/2008 | CN201174580Y Monitoring circuit of converter transformer cooling system |
12/31/2008 | CN201174579Y Terminal protector for transformer |
12/31/2008 | CN201174406Y Mini battery charger |
12/31/2008 | CN101335493A H bridge driving device of automobile electric boosting steering motor |
12/31/2008 | CN101335450A Adaptive regulating method for preventing overload mis-operation by distance protection |
12/31/2008 | CN101335449A Power protection apparatus and electronic control unit |
12/31/2008 | CN101333919A Energy-saving oil pumping machine |
12/31/2008 | CN100448132C Integrated protection system based on electric current principle |
12/30/2008 | US7471495 Vacuum circuit breaker having a high current-carrying capacity |
12/30/2008 | US7471069 Voltage generator device, motor vehicle, control method for the voltage generator device, control method for the motor vehicle, and computer-readable recording medium storing program for causing computer to execute the control method |
12/30/2008 | US7471007 Method for operating a wind power plant and method for operating it |
12/30/2008 | US7471002 Voltage controller of alternator for vehicle |
12/25/2008 | US20080316777 Method for thermal protection of frequency converter and a frequency converter |
12/25/2008 | US20080316658 Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof |
12/25/2008 | US20080315909 Method of detecting a malfunction of an encoder for a vehicle drive system |
12/25/2008 | US20080315811 System and Method for Collecting Characteristic Information of a Motor, Neural Network and Method for Estimating Regions of Motor Operation from Information Characterizing the Motor, and System and Method for Controlling Motor |
12/25/2008 | US20080315808 Motor drive device with lock protection function |
12/24/2008 | WO2008155630A1 Power storage unitand vehicle having power storage unit |
12/24/2008 | WO2007128763A3 Power supply system and method |
12/24/2008 | EP2006972A1 Power storage system |
12/24/2008 | EP2006971A1 Electric power storing apparatus |
12/24/2008 | DE19918907B4 Schaltvorrichtung Switching device |
12/24/2008 | DE102008001748A1 System und Verfahren zum Erkennen eines festgebremsten Motors System and method for detecting a stalled engine |
12/24/2008 | CN201171186Y Switch power supply type electric screwdriver power supply |
12/24/2008 | CN201171159Y Solar battery with asymmetry battery set |
12/24/2008 | CN201171157Y Device for protection of circuit short-circuit and electronic device containing the same |
12/24/2008 | CN201171153Y DC protection test control apparatus |
12/24/2008 | CN101330779A Electric control device for modularization high-power electromagnetic range and control method |
12/24/2008 | CN101330266A 负载驱动控制电路 A load drive control circuit |
12/24/2008 | CN101330265A Soft starter for motor |
12/24/2008 | CN101330264A Soft starter for middle-high voltage solid motor |
12/24/2008 | CN101330263A Conventional soft starter for motor |
12/24/2008 | CN101330251A Protection for permanent magnet motor control circuits |
12/24/2008 | CN101330224A Uninterruptible power supply |
12/24/2008 | CN101330207A Method for automatically recognizing power pool multi-area dynamic operation method |
12/24/2008 | CN101330206A Method for measuring distance of transmission line fault |
12/24/2008 | CN101330205A Method for controlling section power based on tidal current pursuit and train rescheduling |
12/24/2008 | CN101330204A Lightning arrester for television reception apparatus |
12/24/2008 | CN101330203A Current deep constant-current output driving circuit with load short circuit protection function |
12/24/2008 | CN100446375C AC motor thermal overload protection method |
12/23/2008 | US7468897 Rectifier without active switches |
12/23/2008 | US7468877 Overcurrent detection circuit and power supply apparatus provided therewith |
12/18/2008 | WO2008153576A1 Mems based motor starter with motor failure detection |
12/18/2008 | WO2008153530A1 Remote-operable micro-electromechanical system based over-current protection apparatus |
12/18/2008 | US20080310967 Intelligent air moving apparatus |
12/18/2008 | US20080310199 Power supply protection apparatus and related method |
12/18/2008 | US20080310198 Apparatus and method for suppressing the input current inrush for a voltage converter in a pre-charge stage |
12/18/2008 | US20080310062 Micro-electromechanical system based selectively coordinated protection systems and methods for electrical distribution |
12/18/2008 | US20080310057 Mems based motor starter with motor failure detection |
12/18/2008 | DE10224174B4 Stromunterbrechungsschaltung für Speichervorrichtungen und eine dafür vorgesehene Abnormalitätsdetektionsschaltung Power interrupting circuit for memory devices and a dedicated abnormality detection |
12/17/2008 | EP2003461A1 Method for detecting the loss of one or more phases in a permanent-magnet synchronous electric motor |
12/17/2008 | EP1456929A4 A control circuit |
12/17/2008 | CN201167231Y Detection proctive circuit for electromagentic furnace power transistor |
12/17/2008 | CN201167230Y Intelligence control protecting equipment for dragging facility of oil-pumping machine |
12/17/2008 | CN101326695A A tool for generating fault response tolerances for a switching device |
12/17/2008 | CN101325389A Fan system and detecting device thereof |
12/17/2008 | CN101325334A Microcomputer type electric power engineering DC power supply cabinet |
12/17/2008 | CN101325332A Method for implementing element for measuring earthing distance without relevance to load current and ground resistance |
12/17/2008 | CN101325331A Method for implementing element for measuring distance between phases without relevance to load current and ground resistance |
12/17/2008 | CN101325330A Method for implementing earthing distance measurement element |
12/17/2008 | CN101325329A Method for implementing earthing distance measurement element based on negative sequence fault current component |
12/17/2008 | CN101325326A Method and apparatus for control of an electric power system in response to circuit abnormalities |
12/17/2008 | CN100444493C Adaptive earthing distance relay |
12/17/2008 | CN100444492C Microcomputer protector of current mutual inductor |
12/17/2008 | CN100444491C Novel lightning protecting device used for display device |
12/16/2008 | US7466527 Electrostatic discharge protection circuit |
12/16/2008 | US7466107 System and method for electric current and power monitoring and control of a generator |
12/16/2008 | US7465610 Method for operating an H-bridge drive utilizing a pair of high and low side MOSFETS |
12/11/2008 | US20080305367 Battery pack |
12/11/2008 | US20080304303 Power converting device |
12/11/2008 | US20080304298 System Interconnection Inverter |
12/11/2008 | US20080304199 Software-implemented overcurrent protection embedded in a battery pack |
12/11/2008 | US20080304190 Aircraft applicable circuit imbalance detection and circuit interrupter and packaging thereof |
12/11/2008 | US20080304189 Protection for permanent magnet motor control circuits |