| 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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| 04/19/2007 | DE102005048529A1 Motorschutzschaltung Motor protection circuit |
| 04/19/2007 | DE102005048330A1 Ansteuersystem für eine elektrische Maschine Drive system for an electric machine |
| 04/19/2007 | DE102005000139A1 Tiefentladeschutz für Akkupacks mit Zellgruppen Discharge protection for battery packs with cell groups |
| 04/19/2007 | DE102004005770B4 Schaltung zur Steuerung mehrerer Magnetantriebe und Leistungsschaltvorrichtung mit einer derartigen Schaltung A circuit for controlling a plurality of magnetic drives and power switching device with such a circuit, |
| 04/18/2007 | EP1775818A2 Motor protective circuit |
| 04/18/2007 | EP1774633A1 Electrical power switching with efficient switch protection |
| 04/18/2007 | CN2891475Y Enclosed induced fan with built-in startup capacitor |
| 04/18/2007 | CN2891474Y Phase-missing protector for Y-delta startup and operation of electric motor |
| 04/18/2007 | CN2891470Y Electric control device for frequency conversion unit |
| 04/18/2007 | CN2891448Y Fuse remote control system |
| 04/18/2007 | CN2891441Y Battery charging system |
| 04/18/2007 | CN2891437Y Distribution connection structure for electric fire hazard alarm in building |
| 04/18/2007 | CN2891435Y Proximity motor rotation direction detector |
| 04/18/2007 | CN2891434Y Abnormal signal extractor for AC motor device |
| 04/18/2007 | CN2891431Y Instantaneous AC outage protective circuit |
| 04/18/2007 | CN2891430Y Full-automatic power mains over-voltage protector |
| 04/18/2007 | CN2890008Y Electric hoist for use in underground coal mine |
| 04/18/2007 | CN1950981A Overcurrent detecting circuit and power supply device provided with it |
| 04/18/2007 | CN1949616A Over-voltage protection technique for generator set of power station |
| 04/18/2007 | CN1949120A Regulating apparatus of output voltage |
| 04/18/2007 | CN1311605C Wire or wireless system for power tool and method for power supply |
| 04/18/2007 | CN1311604C Recovery control module, system and method for electric power transimiting system |
| 04/18/2007 | CN1311603C Protective relay, protection control system and method for providing fault data synchronization |
| 04/18/2007 | CN1311602C Protective relay and method for transimitting information to remote apparatus via protective relay |
| 04/18/2007 | CN1311601C Electric power controlling and monitoring system, digital protective relays and protection control method |
| 04/17/2007 | US7206177 Device and method for protection against overcurrents in an electrical energy distribution cabinet |
| 04/17/2007 | US7206176 Circuit and method for protecting against overload of an electric motor |
| 04/12/2007 | WO2007041162A2 Protection apparatus for an electrical load |
| 04/12/2007 | WO2007039377A1 Control system and method for controlling a permanently excited electric motor |
| 04/12/2007 | WO2007039369A1 Control system and method for controlling a permanently excited electric motor |
| 04/12/2007 | WO2007038846A1 System to control, protect and monitor the status of forced cooling motors for power transformers and similar |
| 04/12/2007 | WO2006136507A3 Method and arrangement for monitoring signals |
| 04/12/2007 | WO2005119873A3 Protection circuits for hybrid power systems |
| 04/12/2007 | US20070081280 Drive circuit having a transformer for a semiconductor switching element |
| 04/12/2007 | US20070080669 Dual voltage electrical system |
| 04/12/2007 | DE19758709B4 Control of electric power supply to loads in car - using control unit for each load powered from closed loop surrounded by several electrically conducting bodies separated at distinct points |
| 04/12/2007 | DE102005048801A1 Transistor switching circuit is used to protect the communication port of a microprocessor against load faults |
| 04/12/2007 | DE102005046962A1 Ansteuersystem und Verfahren zur Ansteuerung für einen permanent erregten Elektromotor Drive system and method for controlling a permanent-magnet electric motor |
| 04/12/2007 | DE102005046961A1 Ansteuersystem und Verfahren zur Ansteuerung für einen permanent erregten Elektromotor Drive system and method for controlling a permanent-magnet electric motor |
| 04/11/2007 | EP1772938A2 Reconfigurable power distribution network |
| 04/11/2007 | EP1772937A2 Electric power generating system |
| 04/11/2007 | EP1771929A1 Method and device for identifying pinching situations in displacing drives in motor vehicles |
| 04/11/2007 | CN2888712Y Multifunctional household electrical appliance/electric source protector |
| 04/11/2007 | CN2888711Y Motor start/operation protector |
| 04/11/2007 | CN2888710Y Neutral point protector for 110KV or 220KV transformer |
| 04/11/2007 | CN2888654Y Hanging conversion device of storage battery |
| 04/11/2007 | CN1947318A Thermal overload protection |
| 04/11/2007 | CN1945961A AC exciting control system of double feed wind power generator based on DSP with secondary frequency modulation and its working method |
| 04/11/2007 | CN1945921A Single battery or sub battery group protection circuit and method and device for controlling power type battery group uniformly discharging |
| 04/11/2007 | CN1945916A Device to protect against a surge voltage and an electronic apparatus including the same |
| 04/11/2007 | CN1945914A DSP relay protection control system based on small wave theory and its working method |
| 04/11/2007 | CN1945913A Detecting system for relay protection fault and oscillation based on double CPU and its distinguishing method |
| 04/11/2007 | CN1945912A Method for realizing self adaptive current quick break protection of power supply circuit |
| 04/11/2007 | CN1945021A No-blocking pollution discharging pump |
| 04/11/2007 | CN1310417C Controller for motor driving unit |
| 04/11/2007 | CN1310390C Fault-tolerant quick discrimination method for differential protection of parallel reactor |
| 04/11/2007 | CN1310389C Fuzzy control method for relay protection of high voltage power main equipment |
| 04/10/2007 | US7203048 DC to DC controller with inrush current protection |
| 04/10/2007 | US7203047 Combination current sensor and relay |
| 04/10/2007 | US7203042 Protective circuit for a motor |
| 04/10/2007 | US7203041 Primary side turn-off of self-driven synchronous rectifiers |
| 04/10/2007 | US7202641 DC-to-DC converter |
| 04/10/2007 | US7202575 Semiconductor integrated circuit device |
| 04/07/2007 | WO2007100327A1 Method for regulating a voltage and circuit therefor |
| 04/05/2007 | WO2007036430A1 Method and device for the inductive transfer of energy to super-conductive excitation coils of an electric machine |
| 04/05/2007 | WO2006130571A3 Superconducting fcl using a combined inducted magnetic field trigger and shunt coil |
| 04/05/2007 | US20070076335 Protection apparatus for an electrical load |
| 04/05/2007 | US20070076334 Electrical contactor current sensing system and method |
| 04/05/2007 | DE102006046384A1 Barrier e.g. swinging gate, activating device, has controller programmed to determine when obstruction exists in path of barrier, to determine speed of motor from generated voltage, and to determine position of barrier using speed |
| 04/05/2007 | DE102005047089A1 Permanent magnetically excited direct current motors protecting method, involves changing motor summing current related to voltage generated adjacent to windings, during temporary switching off motor after deactivation of free wheel current |
| 04/05/2007 | DE102005044147A1 Electromechanical adjusting device movement controlling method for motor vehicle, involves calculating adjusting movement, which is carried out before or during previous stopping of vehicle, and storing movement in non-volatile memory |
| 04/04/2007 | EP1769570A1 Linear portable actuator and method for limiting the maximum effort of a motor of said actuator |
| 04/04/2007 | EP1769295A2 Control device of an adjusting device of a motor vehicle |
| 04/04/2007 | CN2886895Y Multifunctional microcomputer controller for DC power supply system |
| 04/04/2007 | CN2886894Y A protection device for automatic bus voltage deviation regulation |
| 04/04/2007 | CN2886893Y Low voltage protection circuit for ignition controller |
| 04/04/2007 | CN2886892Y Protection circuit for power supply |
| 04/04/2007 | CN2886891Y Power supply protection circuit for communication service single board |
| 04/04/2007 | CN2886777Y A dual-contactor interlocking control device |
| 04/04/2007 | CN2886590Y A device for monitoring insulation of vacuum switch |
| 04/04/2007 | CN1943090A Series motor and method for controlling the same |
| 04/04/2007 | CN1941590A DC-AC converter for inhibiting surge current dynamically |
| 04/04/2007 | CN1941582A High power supply to control an abnormal load |
| 04/04/2007 | CN1941534A Circuit-breaker operation interface module of relay protector for power system |
| 04/04/2007 | CN1941533A Generation controlling circuit with overvoltage protection function for automobile |
| 04/04/2007 | CN1309139C Pole transformer load monitoring system using wireless internet |
| 04/04/2007 | CN1308122C Dual-mode non-isolated corded system for transportable cordless power tools |
| 04/03/2007 | US7199991 Electrical bus protection method & apparatus |
| 04/03/2007 | US7199989 Digital protection relay with time sync function |
| 04/03/2007 | US7199988 Discharge tube lighting transformer with protective circuit against non-grounding of ground terminal |
| 04/03/2007 | US7199987 Diode system having zener diodes and a generator |
| 04/03/2007 | US7199559 Electric power generating system for vehicle |
| 04/03/2007 | CA2427275C Power distribution circuit board with bullet connectors |
| 03/29/2007 | WO2007035411A2 Slip-controlled, wound-rotor induction machine for wind turbine and other applications |
| 03/29/2007 | WO2006011938A3 Cordless power tool with a protected weak link element |
| 03/29/2007 | US20070072016 Methods and apparatus for improving the cold starting capability of a fuel cell |
| 03/29/2007 | US20070070561 Method and a control system for starting a motor for driving a compressor |
| 03/29/2007 | US20070070560 Method for estimating dc motor coil temperature, dc motor control method and their devices |
| 03/29/2007 | US20070070559 Device for supplying electric power to a superconductor |
| 03/29/2007 | US20070070558 Electrical load status detection and control device |