| 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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| 12/11/2008 | US20080304188 Wind Power Generation System and Control Method Thereof |
| 12/11/2008 | US20080304187 Fault condition protection |
| 12/11/2008 | US20080303461 Method and Apparatus for Detecting Blocking of a Direct Current Motor |
| 12/11/2008 | US20080303460 Method and Device for Identifying Pinching Situations in Displacing Drives in Motor Vehicles |
| 12/11/2008 | DE19959776B4 Differentialschutzverfahren Differential protection method |
| 12/10/2008 | EP2001096A2 Controller |
| 12/10/2008 | CN201163720Y Multi-use household electrical appliance protector capable of automatic trip when power-on after power-off |
| 12/10/2008 | CN201163719Y 电流保护器 Surge Protector |
| 12/10/2008 | CN101322295A Battery pack, and battery protecting method |
| 12/10/2008 | CN101320951A Composite control apparatus of electric motor |
| 12/10/2008 | CN101320911A Electric power line longitudinal coupling protection decision method based on integrated impedance |
| 12/10/2008 | CN101320910A Protective circuit of switch power source |
| 12/10/2008 | CN101320909A Protector of transformer |
| 12/10/2008 | CN101320908A Interturn starting method of shunt reactor |
| 12/10/2008 | CN100442643C Method for operating a supply unit for a driver circuit, and supply unit for a driver circuit |
| 12/10/2008 | CN100442630C Rechargeable battery pack for a power tool |
| 12/10/2008 | CN100442623C Protecting method for short-circuit between wire coils of parallel reactor of ultrahigh voltage transmission line |
| 12/10/2008 | CN100442622C Over current protective amperage control for battery of electric tool |
| 12/10/2008 | CN100442621C A rectifying circuit start-up protector |
| 12/10/2008 | CN100442620C Multi-threshold over-curreut protection system and method for switch powersupply converter |
| 12/10/2008 | CN100442619C Appliance for protecting boat generator and for synchronisation |
| 12/10/2008 | CN100442618C A relay protection system which can distinguish short-circuit and harmonic and its working method |
| 12/09/2008 | US7463469 System and method for current overload response with class D topology |
| 12/09/2008 | US7463468 Reverse circulation protection circuit |
| 12/09/2008 | US7463467 Relay-to-relay direct communication system and method in an electric power system |
| 12/09/2008 | US7463464 Method and apparatus for sensing brushless DC motor average current from overcurrent protection circuitry |
| 12/09/2008 | US7463462 Nuisance trip reducing motor control system and method |
| 12/09/2008 | US7463461 Resistive superconducting fault current limiter |
| 12/09/2008 | US7463071 Level-shift circuit utilizing a single level-shift switch |
| 12/09/2008 | US7462952 Electrical power control system |
| 12/09/2008 | CA2314147C Protection system |
| 12/04/2008 | WO2008146358A1 Distribution system and fault search/dividing method |
| 12/04/2008 | WO2008146040A1 System for identifying fire risk |
| 12/04/2008 | WO2008145511A1 An electric motor |
| 12/04/2008 | WO2008145191A1 Method and arrangement for performing voltage ride through in case of power grid failures |
| 12/04/2008 | WO2007136362A3 Non-intrusive electronic control circuitry to detect an open protector in a hermetically sealed compressor |
| 12/04/2008 | US20080298102 Power Converter With Low Loss Switching |
| 12/04/2008 | US20080298099 Apparatus and method for reducing the die area of a PWM controller |
| 12/04/2008 | US20080297965 Control system and method with constant maximum current for power converter protection |
| 12/04/2008 | US20080297959 Motor Driving Circuit |
| 12/04/2008 | US20080297958 Motor controller and electric power steering apparatus |
| 12/04/2008 | US20080297011 Integrated controller/motor with thermal overload sensor |
| 12/04/2008 | DE102007025673A1 Power protection unit for use with electronic circuit of phase failure guard for distribution network, has phasing line and neutral line, where phasing line has circuit breakers assigned for disconnection of phasing line |
| 12/03/2008 | EP1997202A2 Electro-mechanical actuator system, for instance for adjustable furniture |
| 12/03/2008 | EP1996990A2 Control system for a transformer or reactor |
| 12/03/2008 | EP0848492B1 Method for diagnosing abnormality of circuit member of inverter driving controller for driving and controlling motor |
| 12/03/2008 | CN201160265Y Drive system of permanent magnet motor of transverse magnetic field |
| 12/03/2008 | CN201160258Y 3-power level integrated gate commutate thyristor frequency converter bridge arm straight-through protector |
| 12/03/2008 | CN201160221Y Auto-power-off synthetic protector |
| 12/03/2008 | CN201160220Y Passive thread type motor protecting equipment |
| 12/03/2008 | CN201160219Y Motor over charge open phase protection circuit |
| 12/03/2008 | CN201160218Y Plastic-shell-type dynamoelectric integrated three phase AC electric motor protector with energy accumulation clasher |
| 12/03/2008 | CN201160217Y Self-adaption controller for electric tool and control system |
| 12/03/2008 | CN201160216Y Transcriber for motor protector |
| 12/03/2008 | CN201160215Y Generator control box |
| 12/03/2008 | CN201159129Y Start motor protector for car |
| 12/03/2008 | CN101316046A Automatic polarity regulating apparatus of charging circuit |
| 12/03/2008 | CN101316042A Safety control system for backup battery interface of medical equipment |
| 12/03/2008 | CN101316036A Self-adapting three-phase reclosure decision method of ultra-high voltage electric power line with shunt reactor |
| 12/03/2008 | CN101316035A Programmable control method of microcomputer complex protection device |
| 12/03/2008 | CN100440674C Current limiter for short circuit fault |
| 12/03/2008 | CN100440673C Short-circuit fault current limiter |
| 12/03/2008 | CN100440672C Relay protection method of the line single phase grounding failure affected by the distribution-resisting capacitance and current |
| 12/03/2008 | CN100440671C Integrated protection system based on multiple traditional protection technologies |
| 12/03/2008 | CN100440670C Monostable comparator device |
| 12/03/2008 | CN100440669C Open-circuit protector for security unit |
| 12/03/2008 | CN100440668C Output circuit device of self-controlled breaking protective signal relay |
| 12/03/2008 | CN100440665C Method and apparatus for control of an electric power distribution system in response to circuit abnormalities |
| 12/03/2008 | CN100439815C Freezing circulation device |
| 12/02/2008 | US7460378 Overload protection arrangement for electronic converters, for instance for halogen lamps |
| 12/02/2008 | US7460347 Systems and methods for performing a redundancy check using intelligent electronic devices in an electric power system |
| 12/02/2008 | US7460346 Arc fault detection and confirmation using voltage and current analysis |
| 12/02/2008 | US7459979 Semiconductor indicator for voltage diagnostics in power amplifiers |
| 12/02/2008 | US7459890 Method and circuit for controlling an electric power plant |
| 11/27/2008 | WO2008142332A2 Electronic switch device for controlling a high power load supply in an automobile |
| 11/27/2008 | WO2008113742A3 Compact secondary substation comprising an arcing fault protection system, a method for arcing fault protection in a compact secondary substation, and a control unit for performing the method |
| 11/27/2008 | US20080293577 Method for Operating a Superconductor at a Temperature Higher than the Superconductive Temperature Tc |
| 11/27/2008 | US20080291708 Protective circuit and method for multi-level converter |
| 11/27/2008 | US20080291699 Low-Loss Rectifier with Optically Coupled Gate Shunting |
| 11/27/2008 | US20080291593 Device protection using temperature compensation |
| 11/27/2008 | US20080291589 Motor drive apparatus and motor drive control method |
| 11/27/2008 | US20080291588 Motor control microcomputer and control method for the same |
| 11/27/2008 | US20080290951 Semiconductor device |
| 11/27/2008 | DE112007000244T5 Drahtloses System für ein oder mehrere elektrische Schaltvorrichtungen Wireless system for one or more electrical switching devices |
| 11/27/2008 | DE112006003379T5 Vorrichtung, System und Verfahren für das Erfassen von Wechselstromschienenverlust und das Trennen von Wechselstromschienen bei Elektrofahrzeugen mit einer Hilfsstromversorgung Apparatus, system and method for detecting AC rail loss and disconnection of the AC power rails for electric vehicles with an auxiliary power supply |
| 11/27/2008 | DE102007024178A1 Verfahren zum Betreiben einer elektrischen Schaltung sowie entsprechende elektrische Schaltung A method of operating an electrical circuit, as well as corresponding electrical circuit |
| 11/26/2008 | EP1995856A2 A method for communication between a low potential level and a valve located on high voltage potential in a high voltage converter station as well as a device for such a communication |
| 11/26/2008 | EP1994621A2 Electronic tripping unit for a motor-circuit breaker of an electric motor |
| 11/26/2008 | EP1994620A1 Protective device and method for monitoring the appliance temperature of an appliance |
| 11/26/2008 | EP1994453A2 Underground monitoring system and method |
| 11/26/2008 | CN201156715Y Hauler motor control system |
| 11/26/2008 | CN201156713Y DC motor controller of running machine |
| 11/26/2008 | CN201156679Y Standby electrical power system having independent protection construction |
| 11/26/2008 | CN201156671Y Valve based electronic control apparatus |
| 11/26/2008 | CN201156670Y Intelligent multiple protection automatic electricity economizer |
| 11/26/2008 | CN201156667Y Protective circuit with variable current limiting level |
| 11/26/2008 | CN201156665Y GIS housing overvoltage protector |
| 11/26/2008 | CN201156664Y Security protection circuit using micro-controller PWM to output control signal |
| 11/26/2008 | CN201156544Y Overvoltage protection circuit of field effect tube and electrical equipment having the circuit |
| 11/26/2008 | CN201156509Y Circuit breaker for transformer |