| 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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| 01/27/2005 | WO2005008858A1 Power controller for vehicle |
| 01/27/2005 | WO2005008857A1 Device and method for protecting an electric machine |
| 01/27/2005 | US20050018368 DC reactor with bobbin equipped with supplementary winding |
| 01/27/2005 | US20050017731 Apparatus and method for real time determination of arc fault energy, location and type |
| 01/27/2005 | US20050017676 Portable device and semiconductor device |
| 01/27/2005 | US20050017667 Closing member control system |
| 01/27/2005 | US20050017662 Driving circuit for brushless motor |
| 01/27/2005 | DE10331506A1 Verfahren und Vorrichtung zum Bestimmen der Generatortemperatur aus dem Erregerstrom Method and device for determining the temperature from the generator excitation current |
| 01/26/2005 | EP1501181A2 Movable barrier operator having force and position learning capability |
| 01/26/2005 | EP1501178A2 A circuit for driving a load, in particular a direct-current electric motor |
| 01/26/2005 | EP1501167A2 System and method for detecting faults in an aircraft electrical power system |
| 01/26/2005 | CN2674737Y Short phase protector for three-phase motor |
| 01/26/2005 | CN2674736Y Heat current-limiting type electric vehicle controller |
| 01/26/2005 | CN1571260A Inverted welding power source system |
| 01/26/2005 | CN1571257A Power supply with surge voltage control functions |
| 01/26/2005 | CN1571232A Electronic thermorelay |
| 01/26/2005 | CN1571231A Excess temperature protector for driving motor of electric automobile |
| 01/26/2005 | CN1571230A Transformer differential protection method based on virtual magnetic flux-differential current characteristics |
| 01/26/2005 | CN1571229A Switching fault detection control device for compensation capacitance |
| 01/26/2005 | CN1571086A Open-circuit method for breaker of power generator and its control equipment |
| 01/26/2005 | CN1186867C Selective electronic tripping element |
| 01/25/2005 | US6847187 Detection of loss of cooling air to traction motors |
| 01/20/2005 | WO2005006514A2 System and method for the powering and fault protection of remote telecommunications equipment |
| 01/20/2005 | WO2005006000A1 Electrical switchboard monitoring system |
| 01/20/2005 | WO2004105206A8 Method and arrangement for monitoring a power output stage |
| 01/20/2005 | WO2004098013A3 Method and apparatus for electrical power transfer |
| 01/20/2005 | US20050013076 Drive circuit for a switch in a switching converter and method for driving a switch in a switching converter |
| 01/20/2005 | US20050013075 System and method for detecting faults in an aircraft electrical power system |
| 01/20/2005 | US20050013069 Fireguard circuit |
| 01/20/2005 | US20050012339 Variable speed distributed drive train wind turbine system |
| 01/20/2005 | DE19800580B4 Leistungswandlervorrichtung Power conversion device |
| 01/20/2005 | DE102004026254A1 Pumpenantriebsmotorsteuerungsgerät Pump drive motor control apparatus |
| 01/19/2005 | EP1498997A2 Power supply and distribution for a ship |
| 01/19/2005 | CN2672934Y Protector for three phase AC motor |
| 01/19/2005 | CN2672933Y Intelligent start controller for water pump |
| 01/19/2005 | CN2672886Y Household accumulation power supply device |
| 01/19/2005 | CN1567669A Over-voltage protection device of DC motor |
| 01/18/2005 | US6845301 System for protecting and controlling substation main circuit components |
| 01/18/2005 | US6845000 Limiting circuit for a brushless DC motor |
| 01/13/2005 | US20050007714 High speed transfer system |
| 01/13/2005 | US20050007053 Method for recognising an obstructive situation in a motor driven element |
| 01/13/2005 | DE19819472B4 Überwachungsvorrichtung für eine mit Öl gefüllte elektrische Einrichtung Monitoring apparatus for an oil-filled electrical device |
| 01/13/2005 | DE10297637T5 Überlastschutzvorrichtung und -verfahren eines Kompressors Overload protection device and method of a compressor |
| 01/13/2005 | DE102004022858A1 System und Verfahren zur Drehzahlregelungs- und Stillstandsschutzkombination für Elektromotoren wie etwa in Motorkühlanwendungen System and method for simple motor control and stall protection combination of electric motors such as in engine cooling applications |
| 01/12/2005 | EP1496590A2 Method and device for determining the generator temperature from the excitation current |
| 01/12/2005 | EP1496589A1 Apparatus and method for protection of an electrical machine |
| 01/12/2005 | EP1496264A1 Methods and apparatuses for detecting surge in centrifugal compressors |
| 01/12/2005 | CN2671202Y Improved charging battery circuits |
| 01/12/2005 | CN2671197Y D.C. motor protective circuit |
| 01/12/2005 | CN1565070A Motor control circuit overcurrent protection |
| 01/12/2005 | CN1564413A Action judgment of single phase earthing short-circuit distance relay |
| 01/12/2005 | CN1564412A Protective circuit |
| 01/12/2005 | CN1564411A Output circuit device of self-controlled breaking protective signal relay |
| 01/11/2005 | US6842718 Intelligent auxiliary cooling system |
| 01/11/2005 | US6842352 Inverter module for train traction systems |
| 01/11/2005 | US6842064 Overcurrent protection and masking circuitry for protection against an overcurrent condition |
| 01/11/2005 | US6840113 Pinch detection system |
| 01/08/2005 | WO2005003796A1 Dry-type high-voltage load system device and method for preventing chain disconnection/arc discharge of the device |
| 01/06/2005 | US20050002136 Combination current sensor and relay |
| 01/06/2005 | US20050002135 Pump drive motor control apparatus |
| 01/06/2005 | US20050001431 Error recognition for power ring |
| 01/05/2005 | EP1493630A2 Failure recognition for an electrical Powerring |
| 01/05/2005 | EP1493224A1 Method and apparatus for pulse variable-controlled movable obstacle detection |
| 01/05/2005 | CN2669507Y Foldable hand-held electronic device |
| 01/05/2005 | CN1560994A Intelligent control device and remote monitoring system for transformer |
| 01/05/2005 | CN1560977A Three-phase A.C. dynamo protector |
| 01/05/2005 | CN1560976A Protection and fault positioning method for generator stator winding single-phase earthing |
| 01/05/2005 | CN1560975A Phase-sequence synthetic brake method for preventing multi-branch transformer differentical protection malfunction |
| 01/05/2005 | CN1560974A Method for controlling surge when transformer switch-on using split-phase switch-on and its circuit |
| 01/05/2005 | CN1560645A Small Current earthing line selecting method based on model parametric recognition |
| 01/05/2005 | CN1560639A Voltage mutual inductor ferromagnetic resonant diagnosis and deresonant method |
| 01/05/2005 | CN1183653C Converter device |
| 01/05/2005 | CN1182987C Electric motor driving unit, and method for testing fault of electric motor driving unit |
| 01/04/2005 | US6839212 Bus bar thermal detection |
| 01/04/2005 | US6839210 Bus total overcurrent system for a protective relay |
| 01/04/2005 | US6839207 Protection system for protecting a poly-phase distribution transformer insulated in a liquid dielectric, the system including at least one phase disconnector switch |
| 01/04/2005 | US6838857 Protection device using 1S circuits, for a battery assembly of electrochemical cells |
| 01/04/2005 | US6838847 Stall protection based on back EMF detection |
| 12/30/2004 | US20040264094 Protective control method and apparatus for power devices |
| 12/30/2004 | US20040264091 Electronic device, and circuit and method for protecting the same |
| 12/30/2004 | US20040264086 Overvoltage protective device for DC motor |
| 12/30/2004 | US20040264074 System for transitioning to the trip threshold for the start condition thermal model for a motor protection relay |
| 12/30/2004 | US20040264073 Rotor thermal model for use in motor protection |
| 12/30/2004 | US20040263342 System for monitoring motors |
| 12/30/2004 | US20040263295 Method for monitoring a power output stage |
| 12/30/2004 | US20040263127 Control circuit |
| 12/30/2004 | DE10325890A1 Verfahren zum Initialisieren einer fremdkraftbetätigten Verstellvorrichtung und Vorrichtung zur Durchführung des Initialisierungsverfahrens A method for initializing a power-operated adjustment and apparatus for carrying out the initialization |
| 12/30/2004 | DE10325888A1 Vehicle window operating method for an adjusting device for a remote-controlled actuator on a motor vehicle's window door winder uses a control unit with a memory to trigger a drive unit |
| 12/30/2004 | DE10325456A1 Unterseeboot Submarine |
| 12/30/2004 | DE102004026114A1 Diagnosesystem und Verfahren für eine Vorrichtung zur Erfassung eines Leckstroms The diagnostic system and method for a device for detecting a leakage current |
| 12/29/2004 | WO2004068543A3 Electrostatic discharge circuit and method therefor |
| 12/29/2004 | EP1492211A1 Method and circuit for protecting a battery operated electronic device |
| 12/29/2004 | EP1492210A1 Protection system for at least part of a vehicle power supply network |
| 12/29/2004 | EP1306511B1 System and method for optimizing the control program of a window-lifting device with anti-jam protection |
| 12/29/2004 | EP1133612B1 Method for limiting the closing force of movable components |
| 12/29/2004 | CN2667768Y 智能电动机控制器 Intelligent Motor Controller |
| 12/29/2004 | CN2667767Y Intelligent electric machine protector |
| 12/29/2004 | CN2667766Y Submersible pump starting protector |
| 12/29/2004 | CN2667765Y Nonlinear zinc oxide piezo-resistance fast de-excitation and overvoltage protecting apparatus |
| 12/29/2004 | CN2667764Y Current mutual inductor overvoltage protector |