| 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) |
|---|
| 01/21/2009 | CN101350512A Over current protective system |
| 01/21/2009 | CN101350511A Twofold startup method protected by microcomputer protecting equipment |
| 01/21/2009 | CN101349737A Method for detecting electric motor state and discriminating start-up course |
| 01/21/2009 | CN101348085A Electric railway feeder line impedance protecting method based on power supply section differential pressure and leading-phase current |
| 01/21/2009 | CN100454750C DC brush-less motor driving device without hull assembly |
| 01/21/2009 | CN100454711C Protecting method and apparatus for battery undervoltage |
| 01/21/2009 | CN100454710C Over-voltage protector |
| 01/21/2009 | CN100454709C Apparatus for detecting over current of motor in vehicle |
| 01/21/2009 | CN100454708C Magnetic disc array system and electric source protector |
| 01/21/2009 | CN100454706C Control and protection module of a switch device |
| 01/21/2009 | CN100454183C System linkage apparatus, setting apparatus for system linkage apparatus and method of setting set values of system linkage apparatus |
| 01/15/2009 | WO2009008314A1 Battery state monitoring circuit and battery device |
| 01/15/2009 | WO2009008313A1 Battery protection ic and battery device |
| 01/15/2009 | WO2009006666A1 Fault current limiter |
| 01/15/2009 | US20090016044 Integrated dc circuit for a ceiling fan combined with a lamp |
| 01/15/2009 | US20090015186 Suppressing phased motor voltage transients on disconnect |
| 01/15/2009 | DE19901708B4 Drehzahlgeregelter Elektromotor ohne Motorstrombegrenzung, insbesondere drehzahlgeregelter Brennermotor eines Kraftfahrzeug-Heizgerätes Speed-controlled electric motor without motor current limit, in particular speed-controlled burner engine of a motor vehicle heater |
| 01/14/2009 | EP2015441A1 Regenerative static excitation system for superconducting rotor |
| 01/14/2009 | EP2015091A2 Cell monitoring and balancing |
| 01/14/2009 | EP2013966A1 Control unit for an electric motor, in particular for a fan motor |
| 01/14/2009 | CN201181908Y Frequency conversion circuit and industrial environment friendly air conditioner controller |
| 01/14/2009 | CN201181903Y Input circuit of DC power supply |
| 01/14/2009 | CN201181840Y Phase-loss protector for three-phase electrical motor |
| 01/14/2009 | CN201181839Y Overflowing detection circuit apparatus of permanent magnet synchronous compressor driver |
| 01/14/2009 | CN201181838Y Protection equipment for generator |
| 01/14/2009 | CN201181837Y Differential protective device of transformer |
| 01/14/2009 | CN201179470Y Meat grinder with overload protection function |
| 01/14/2009 | CN101345507A Energy-saving control device of megawatt level multifunctional aerogenerator |
| 01/14/2009 | CN101345419A Series voltage quality regulator and fast investment and cutting method |
| 01/14/2009 | CN101345416A Whole lightning-proof tower amplifier and its lightning-proof circuit and corresponding lightning-proof device |
| 01/14/2009 | CN101345415A Travelling wave analysis recognition method for thunderbolt shielding failure and counterattack discrimination of direct current transmission line |
| 01/14/2009 | CN101345414A Main electric power line integration fault location protection system based on GPS and fault transient signal |
| 01/14/2009 | CN101345413A Phase interruption protector for digital motor |
| 01/14/2009 | CN101345412A Motor protector based on computer-controlled system |
| 01/14/2009 | CN101345411A Motor protector based on computer-controlled system |
| 01/14/2009 | CN101345173A Group insulation module for a switching gear assembly and switching gear assembly with such a group insulation module |
| 01/14/2009 | CN101345127A Capacitive electromagnetic potential transformer used in power system |
| 01/14/2009 | CN100452632C Power supplier with over-low-voltage protecting system and over-low-voltage protection |
| 01/14/2009 | CN100452607C Protection circuit |
| 01/14/2009 | CN100452606C Resistive superconducting fault current limiter |
| 01/14/2009 | CN100452605C Method and system for preventing electric network from collapsing |
| 01/14/2009 | CN100452604C Energy position tandem protection method and device for extra-high voltage transmission line |
| 01/14/2009 | CN100452603C Inspecting circuit and method for switching power-supply outputting voltage |
| 01/14/2009 | CN100452602C Intelligent motor protector |
| 01/14/2009 | CN100452601C New magneting inrush current recognition method adapted for large-scale power transformer additional with phase discrimination |
| 01/14/2009 | CN100452599C Protection method for detecting power module outlet internal short-circuit and detection protecting circuit |
| 01/14/2009 | CN100452589C Method for introducing second operating power supply into gas-insulated high voltage switch cabinet |
| 01/14/2009 | CN100451907C Current cutoff circuit and electric steering wheel lock |
| 01/13/2009 | US7477501 System and method of mounting current transducers in proximity to circuit breakers |
| 01/13/2009 | US7477500 Method and system for signal and power distribution in a building housing a manufacturing process |
| 01/13/2009 | US7477494 Electrical device comprising two supports and a connection terminal connected to a series capacitor and to a voltage limiter |
| 01/13/2009 | US7477493 Alternator control device for vehicle |
| 01/13/2009 | US7477492 Superconducting magnet system |
| 01/13/2009 | US7477042 Ion engine power supply |
| 01/09/2009 | CA2636870A1 Power tools |
| 01/08/2009 | WO2009006067A2 Programmable power limitation for power transistor system |
| 01/08/2009 | WO2009003678A2 Method for recognizing a jam, and adjustment device |
| 01/08/2009 | US20090009146 Generating system with a regulated permanent magnet machine |
| 01/08/2009 | US20090009120 Signal input method and opening/closing controller |
| 01/08/2009 | DE102007029744A1 Anordnung mit wenigstens einer Batterie Arrangement with at least one battery |
| 01/07/2009 | EP2012426A2 Inverter drive and heat pump water heater |
| 01/07/2009 | EP2012404A1 Selective independent overload and group overload protection circuit of power supply |
| 01/07/2009 | CN201178498Y Surge protection circuit for electromagentic furnace |
| 01/07/2009 | CN201178384Y Inverter for electric bicycle |
| 01/07/2009 | CN201178319Y Portable apparatus having charging protection function |
| 01/07/2009 | CN201178316Y Explosion-proof PDA and intrinsic safe battery thereof |
| 01/07/2009 | CN201178304Y Television set having over-current protection for USB port |
| 01/07/2009 | CN201178303Y Automatic phase interruption protector for three phase motor |
| 01/07/2009 | CN201178302Y Three phase motor protector |
| 01/07/2009 | CN201178301Y Air-conditioner compressor protective circuit |
| 01/07/2009 | CN201178300Y Integrated control protection cabinet for motor |
| 01/07/2009 | CN201178299Y Intelligent motor protector |
| 01/07/2009 | CN201178298Y Light source protection circuit for photovoltaic complementary lighting circuit |
| 01/07/2009 | CN201178293Y Mainboard of microcomputer protection equipment having three CPUs |
| 01/07/2009 | CN201178245Y Switch cabinet operating controller |
| 01/07/2009 | CN201178023Y Super high voltage magnetic controlling type parallel reactor excitation equipment |
| 01/07/2009 | CN201178016Y Case for control cabinet for converter transformer cooling control system |
| 01/07/2009 | CN101340140A Abnormality detecting device of electric power converting device and abnormality detecting method |
| 01/07/2009 | CN101340103A Overvoltage protection system, battery set and electronic device |
| 01/07/2009 | CN101340084A Driving circuit for discharge over-current protection and recovery, battery protection circuit and system |
| 01/07/2009 | CN101340083A Bearing current measuring and protecting apparatus of three-phase cage type induction motor |
| 01/07/2009 | CN101340082A Stator grounding protection method of additional electric source intermittent injection type power generator |
| 01/07/2009 | CN101340081A Electric protective device and method for electromagnetic forming machine |
| 01/07/2009 | CN101340080A Integrated coordinating control method for security stabilization early warning, preventing control and emergency control |
| 01/07/2009 | CN101340075A Automatic switch control system for three-phase transmission line and electricity power control method thereof |
| 01/07/2009 | CN101339981A Accumulator with fuse protector |
| 01/07/2009 | CN100449931C Apparatus and method for realizing switch magnetic resistance motor electronic gear function |
| 01/07/2009 | CN100449906C Circuit arrangement capable of distinguishing polarity automatically and converting |
| 01/07/2009 | CN100449900C High-voltage ac. controllable parallel-connection reactor high-differential protection method |
| 01/07/2009 | CN100449899C High-voltage AC. controllable parallel-connection reactor control winding zero-sequence protection method |
| 01/07/2009 | CN100449858C Battery pack |
| 01/07/2009 | CN100449324C Dry-type high-voltage load system device and method for preventing chain disconnection/arc discharge of the device |
| 01/06/2009 | US7474542 High voltage power supply |
| 01/06/2009 | US7474517 Modularly expandable data storage device receptacle |
| 01/06/2009 | US7474080 Method and apparatus for providing economic analysis of power generation and distribution |
| 01/02/2009 | DE102008027743A1 Steuervorrichtung und Steuerverfahren Control apparatus and control method |
| 01/02/2009 | DE102008026549A1 Schutz für Permanentmagnetmotor-Steuerungsschaltungen Protection for permanent magnet motor control circuits |
| 01/02/2009 | DE102007030072A1 Elektrischen Antriebseinrichtung für ein Wasserführendes Haushaltsgerät Electric drive system for a water-conducting domestic appliance |
| 01/02/2009 | DE102007029905A1 Elektrischer Transformator The electrical transformer |
| 01/02/2009 | DE102007028704A1 Oil filling monitoring method for electrical transformer, involves comparing actual measured oil temperature with determined reference oil level, and outputting warning or alert depending on comparison |