| 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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| 03/19/2009 | US20090072770 Power inverter module thermal management |
| 03/19/2009 | DE102007043512A1 Energiewandleranlage Energy conversion system |
| 03/18/2009 | EP1105969B1 Electronic circuits with wide dynamic range of on/off delay time |
| 03/18/2009 | EP1075723B1 Closing device with a safety function |
| 03/18/2009 | CN201210665Y Energy-saving electrical appliance set for field oil pumping machine |
| 03/18/2009 | CN201210622Y Electric core charging and discharging control management circuit for lithium ion or polymer battery |
| 03/18/2009 | CN201210467Y Control and protection switch electric appliance |
| 03/18/2009 | CN101390269A Battery low-voltage cutoff circuit |
| 03/18/2009 | CN101388545A Null sequence polygon relay based on null sequence reactor |
| 03/18/2009 | CN101388544A Double loop cross wire failure type discriminating method for stabilizing control system |
| 03/18/2009 | CN101388543A Non-failure valve tripping criteria recognizing breaking point based on local measurement |
| 03/18/2009 | CN101388542A Electric motor voltage converter protecting equipment |
| 03/18/2009 | CN101388541A Automobile air conditioner control panel reference supply protecting equipment |
| 03/18/2009 | CN101388538A Stepped locking explosion-proof switch |
| 03/18/2009 | CN101387676A Large-sized transformer core and on-line monitoring and protecting system for insulaiton fault of clamps |
| 03/18/2009 | CN100471034C Independent safety processor for disabling the operation of high power devices |
| 03/18/2009 | CN100471029C Brushless DC motor locking protection circuit |
| 03/18/2009 | CN100470987C Method for raising measuring precision of microcomputer protective relay device |
| 03/18/2009 | CN100470986C Over-power protection method for switch power supply and cuicirt |
| 03/18/2009 | CN100470985C Motor controlling protector |
| 03/18/2009 | CN100470981C Relay simulated model utilizing method based on script description |
| 03/17/2009 | US7505289 Flyback DC/DC converter using clamp diode |
| 03/12/2009 | WO2009032876A1 Voltage-sensed system and method for anti-islanding protection of grid-connected inverters |
| 03/12/2009 | WO2009032070A2 Method and system for limiting a current in an alternating current generator |
| 03/12/2009 | WO2009030101A1 Online passive maintaining device for large capacity sealed lead-acid accumulator |
| 03/12/2009 | US20090067202 Power Supply System And Vehicle Including The Same |
| 03/12/2009 | US20090067101 Method and System for Limiting a Current in an Alternating Current Generator |
| 03/12/2009 | US20090066283 Method and system for limiting the operating temperature of an electric motor |
| 03/12/2009 | US20090065225 Switchable anti-lock control |
| 03/12/2009 | DE202008015784U1 Unterbrechungsfreie Stromversorgungseinrichtung Uninterruptible power supply device |
| 03/11/2009 | CN201207630Y Input and output torque balancing controller |
| 03/11/2009 | CN201207574Y Electric power adapter |
| 03/11/2009 | CN201207572Y USB charging device |
| 03/11/2009 | CN201207566Y Short circuit protection circuit in inverter |
| 03/11/2009 | CN201207565Y Modularized intelligent motor control protection switch capable of communication |
| 03/11/2009 | CN201207564Y Protection device for transformer earthing |
| 03/11/2009 | CN201207393Y Large power self-cooling thyratron transistor valve and vehicle for mounting |
| 03/11/2009 | CN201207058Y Modularized electric energy measuring device |
| 03/11/2009 | CN101385397A Circuit arrangement for providing an operating DC voltage |
| 03/11/2009 | CN101385215A Power supply unit and controlling method thereof |
| 03/11/2009 | CN101385213A Establishing switchyard zones of a high or medium voltage switchyard |
| 03/11/2009 | CN101385212A Method for limiting the excess force of a closing part which is actuated by an external force |
| 03/11/2009 | CN101383578A Dual-feeding motor system having protecting device and protecting method thereof |
| 03/11/2009 | CN101383565A Wave flexibly controlled high-frequency soft switching square wave inverting power source |
| 03/11/2009 | CN101383506A Method for configuration protection of extra-high voltage DC power transmission system |
| 03/11/2009 | CN101383505A Valve region failure cleaning policy of extra-high voltage DC transmission system |
| 03/11/2009 | CN101383504A Intelligent auto-reclosing valve suitable for bus of 220kV voltage grade or above |
| 03/11/2009 | CN101383503A System and method for detecting short circuit to ground of motor |
| 03/11/2009 | CN101383502A Power controller |
| 03/11/2009 | CN101383501A DC motor overload current control circuit |
| 03/11/2009 | CN101383500A Method for suppressing neutral point DC magnetic biasing by single grounding network |
| 03/11/2009 | CN101383498A Secondary break self-cast device for voltage mutual inductor |
| 03/11/2009 | CN101383497A Electric safety press-key control apparatus |
| 03/11/2009 | CN101383495A Wide area protection control measurement system and method |
| 03/11/2009 | CN101383436A Battery charging method and apparatus |
| 03/11/2009 | CN100468952C Intelligent power saving device for AC motor |
| 03/11/2009 | CN100468912C Asymmetical accumulator storage battery, solar battery with the accumulator storage battery and its charging and discharging method |
| 03/11/2009 | CN100468907C High speed transfer system |
| 03/11/2009 | CN100468906C Over current detector of motor driving circuit |
| 03/11/2009 | CN100468905C Condition diagnosing |
| 03/11/2009 | CN100468734C Circuit arrangement and method for protecting an integrated semiconductor circuit |
| 03/11/2009 | CN100468279C External clock to obtain multiple synchronized computers |
| 03/05/2009 | WO2009029061A1 Battery terminal connector bar with integral circuit protection |
| 03/05/2009 | WO2009028467A1 Air compressor and alarm control method |
| 03/05/2009 | US20090059447 Method and device for fault detection in an n-winding three-phase power transformer |
| 03/05/2009 | US20090059446 AC Motor Controller |
| 03/05/2009 | US20090059445 Overload Current Control Circuit for a DC Motor |
| 03/05/2009 | US20090058339 Electric motor drive apparatus, hybrid vehicle with the same and stop control method of electric power converting device |
| 03/04/2009 | EP2031726A1 High line tolerant power conversion device comprising an internal switch for the protection of sub-devices |
| 03/04/2009 | EP2031725A1 Method of protecting against the effects of insulation faults in a multiple-phase electrical appliance supplied by the electric mains |
| 03/04/2009 | EP2031135A1 Working vehicle |
| 03/04/2009 | EP2031134A1 Working vehicle |
| 03/04/2009 | CN201204714Y Induction heating apparatus |
| 03/04/2009 | CN201204561Y Controller for compressor of vehicle-mounted ice-making machine |
| 03/04/2009 | CN201204471Y Control integrated circuit for lithium battery charger and short circuit protection circuit thereof |
| 03/04/2009 | CN201204470Y Differential protection reactive power on-the-spot compensation apparatus |
| 03/04/2009 | CN201204449Y Protective-relay device |
| 03/04/2009 | CN201204444Y Cyborg type MACSYM for power distribution network |
| 03/04/2009 | CN201204443Y Automatic phase-off protector for motor |
| 03/04/2009 | CN201204442Y Protector for automobile glass elevating motor |
| 03/04/2009 | CN201204441Y Protective-relay device for power equipment |
| 03/04/2009 | CN201204440Y Safeguard protection device for conductor and wiring harness |
| 03/04/2009 | CN201204436Y Electrical leakage detection protection device for solar photovoltaic parallel inverter |
| 03/04/2009 | CN201204435Y Current-comparing type overcurrent current failure controller for lamp decoration |
| 03/04/2009 | CN201203944Y Digital protection ejector die detection system base on electromagnetic mutual-inductor |
| 03/04/2009 | CN201203779Y Apparatus for automatically actuating intermittent pumping motor |
| 03/04/2009 | CN101379686A Method and circuit for adjusting voltage |
| 03/04/2009 | CN101379671A Coordinated fault protection system |
| 03/04/2009 | CN101379670A Protection method for a reversible electric motor |
| 03/04/2009 | CN101378190A Protection circuit board for lead-acid battery of electric vehicle |
| 03/04/2009 | CN101378189A Closed-loop control ac motor protector structure |
| 03/04/2009 | CN101378186A Earth-leakage protector for household appliances |
| 03/04/2009 | CN100466411C Fan protective device and method |
| 03/04/2009 | CN100465655C A method for monitoring a power output stage |
| 03/03/2009 | US7499293 High voltage pulse power circuit |
| 03/03/2009 | US7498775 Electric machine |
| 03/03/2009 | US7498765 Method of controlling charging secondary battery based on type of secondary battery and apparatus |
| 02/26/2009 | WO2009003678A3 Method for recognizing a jam, and adjustment device |
| 02/26/2009 | US20090052210 Temperature sensing arrangements for power electronic devices |
| 02/26/2009 | US20090052104 Energy Store System |