| 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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| 09/10/2008 | CN100418368C Device for turning off overdriven color TV set |
| 09/10/2008 | CN100418283C Pattern matching based security protection method for relay protection information of electric system in network environment |
| 09/10/2008 | CN100418282C Single-phase gruonded fault protecting method for distributing net |
| 09/10/2008 | CN100418281C Method for realizing self adaptive current quick break protection of power supply circuit |
| 09/09/2008 | US7424400 Method of monitoring line faults in a medium voltage network |
| 09/09/2008 | US7423856 Fault control circuit and method therefor |
| 09/09/2008 | US7423853 Aluminum wound transformer |
| 09/09/2008 | US7423412 Method, apparatus and computer program product for injecting current |
| 09/09/2008 | US7423411 Resistive torsional mode damping system and method |
| 09/09/2008 | US7423351 Vehicle-generator control device |
| 09/09/2008 | CA2431111C Compressor terminal fault interruption method and apparatus |
| 09/04/2008 | US20080212345 Dc-dc converter system |
| 09/04/2008 | US20080211444 Control Apparatus for Transmission Mechanism, Transmission, Vehicle Provided Therewith, Method of Controlling the Transmission Mechanism, and Method of Estimating Heat Value of Electric Motor in the Transmission Mechanism |
| 09/04/2008 | US20080211439 Drive device for a brushless motor |
| 09/04/2008 | DE19906705B4 Einklemmschutzsystem Anti-pinch |
| 09/03/2008 | EP1964230A1 Method for controlling an opening leaf of a vehicle with an anti-trap function |
| 09/03/2008 | EP1964229A1 Pinch protection method and device for a motor-driven closing system |
| 09/03/2008 | EP1044490B1 Method for electronic surveillance and control of the opening and closing procedure for electrically operated units |
| 09/03/2008 | CN201110271Y DC brushless evaporation fan for bus air conditioner non position sensor |
| 09/03/2008 | CN101258782A Discharge lamp drive control circuit |
| 09/03/2008 | CN101257273A DC electric machine drive apparatus with power supply by second lithium batteries |
| 09/03/2008 | CN101257268A Electric motor controller and control method |
| 09/03/2008 | CN101257209A Islet operation detecting method of photovoltaic parallel network generating system |
| 09/03/2008 | CN101257208A Method for identifying transformer excitation surge current |
| 09/03/2008 | CN101257207A Method for identifying transformer inner echo surge current |
| 09/03/2008 | CN101257206A Measures for preventing 500kv transforming plant switch mis-jumping to result in large-scale consumer outages |
| 09/03/2008 | CN101256421A Current limitation circuit as well as voltage regulator and DC-DC converter including the same |
| 09/03/2008 | CN100417000C Intelligent electronic transformer |
| 09/03/2008 | CN100416973C Adjustable large power lithium ion vehicle emergency starting power |
| 09/03/2008 | CN100416965C Method for detecting voltage zero cross near fault in travelling wave protection |
| 09/03/2008 | CN100416964C Quick-break protection method with power direction in motor protection measuring device |
| 09/03/2008 | CN100416963C Electric apparatus |
| 09/03/2008 | CN100416959C Traveling wave protective data acquisition plan considering asynchronous switching of 3-phase breaker |
| 09/02/2008 | US7420353 Method and system for communicating voltage regulator switching information to a vehicle computer |
| 09/02/2008 | US7420347 System and method for using a capacitive door edge sensor |
| 08/28/2008 | WO2008103341A1 Adaptive provision of protection function settings of electrical machines |
| 08/28/2008 | WO2008103059A1 Flux control system for active voltage conditioning |
| 08/28/2008 | US20080204959 Method for fault handling in a converter circuit for wiring of three voltage levels |
| 08/28/2008 | US20080204947 Configurable Arc Fault or Ground Fault Circuit Interrupter and Method |
| 08/28/2008 | US20080204344 Contactless label with Y-shaped omnidirectional antenna |
| 08/28/2008 | US20080203952 Electronic Control Unit For Controlling External Half-Bridge Power Output Stages and an Electric Motor Operated Drive With Electronic Control Unit |
| 08/28/2008 | DE102007009604A1 Household device i.e. dishwasher, has inverter attached to electronically commutated motor or arranged in motor proximity, and supply unit spatially disconnected from motor and from inverter |
| 08/27/2008 | CN201107620Y Oxygenation system measuring and controlling apparatus |
| 08/27/2008 | CN201107608Y Multi-electric motor centralized control equipment |
| 08/27/2008 | CN101252287A Power management circuit for battery pack |
| 08/27/2008 | CN101252277A Startup method of idle load long line |
| 08/27/2008 | CN101252276A Method for small current system single-phase earth fault route selecting |
| 08/27/2008 | CN101252275A Coupling double line down distance measuring method using six-phase system new phase mode transformation |
| 08/27/2008 | CN101252274A Same tower double back transmission line fault distance measuring time domain method using single end current flow |
| 08/27/2008 | CN101252273A String complement capacitance transmission line distance protecting method based on model recognition |
| 08/27/2008 | CN101252272A Anti-surging method of multi-load control system |
| 08/27/2008 | CN101252271A Safety system for a machine and method for monitoring a safety system |
| 08/27/2008 | CN101252270A Circuit for preventing phase of three-phase power supply from unbalance |
| 08/27/2008 | CN101251835A Method for evaluating reliability of +/- 800kV current exchanging station main wire connection |
| 08/27/2008 | CN101251569A Method for testing electric secondary AC loop |
| 08/27/2008 | CN101251568A System and method for determining location of phase-to-earth fault |
| 08/27/2008 | CN100414879C Method for realizing equipment network communication of motor protection monitoring apparatus |
| 08/27/2008 | CN100414802C Motor control equipment |
| 08/27/2008 | CN100414800C Travelling wave identification method of superhigh voltage DC line fault |
| 08/26/2008 | US7417842 Apparatus for power conversion in electric rolling stock |
| 08/26/2008 | US7417838 Semiconductor integrated circuit |
| 08/26/2008 | US7417394 Arrangement for testing a power output stage |
| 08/21/2008 | WO2008099037A1 Electric line protection for determining the direction in which a fault occurs |
| 08/21/2008 | WO2008098370A1 Generator power plant protection system and method |
| 08/21/2008 | WO2008016744A3 Overload prevention device for permanent magnet dc motors |
| 08/21/2008 | WO2007143605A3 Electromagnetic noise suppression system for wye power distribution |
| 08/21/2008 | US20080197961 Method and apparatus for directly mounting fuses to transformer terminals |
| 08/21/2008 | DE10001459B4 Elektrowerkzeuggerät mit Drehrichtungsumschalter Electric power tool with reversing switch |
| 08/20/2008 | EP1958310A2 Charging control device for supplying electronic equipment application(s) and battery with compensated current |
| 08/20/2008 | EP1958308A1 Method and device for fault detection in an n-winding three-phase power transformer |
| 08/20/2008 | CN101247100A Electric tool control method and electric tool using the same |
| 08/20/2008 | CN101247048A Coordinated action method for steam generator set shafting torsional oscillation protection |
| 08/20/2008 | CN101247041A Wave record contrastive analysis method of direct current control protection system simulation experiment |
| 08/20/2008 | CN101247040A Permanent fault discrimination method for electric power line with shunt reactor |
| 08/20/2008 | CN101247039A Method for power system wave record playback based on real-time simulation system |
| 08/20/2008 | CN101247038A Method and system for protecting voltage regulator driver circuitry during field coil short circuit condition |
| 08/20/2008 | CN101247037A Method for protecting steam-electric generating set shafting through modality divergence criterion of torsional oscillation protection |
| 08/20/2008 | CN100413216C Circuit device of monitoring power voltage |
| 08/20/2008 | CN100413171C Regioselectivity interlocking apparatus |
| 08/20/2008 | CN100413170C Electric motor control protector |
| 08/20/2008 | CN100413169C Phase-splitting zero-sequence brake method for preventing multiple-branch voltage transformer differential protection unwanted operation |
| 08/20/2008 | CN100413168C Integrated differential flow method for preventing voltage transformer differential protection unwanted operation |
| 08/20/2008 | CN100413167C Maximum difference stream integrated brake device for preventing multiple-branch voltage transformer differential protection unwanted operation by utilizing fault components |
| 08/20/2008 | CN100413166C Maximum differential flow integrated brake device for preventing multiple-branch voltage transformer differential protection unwanted operation |
| 08/20/2008 | CN100413165C Phase-splitting brake device for preventing voltage transformer differential protection unwanted operation by utilizing fault components |
| 08/19/2008 | US7414867 Power conversion device |
| 08/19/2008 | US7414375 Fan voltage regulation control device |
| 08/19/2008 | US7414334 Circuit arrangement for limitation of over-voltages in energy storage modules |
| 08/19/2008 | US7414331 Power converter system and method |
| 08/19/2008 | US7413827 Car power source apparatus |
| 08/14/2008 | WO2008097982A1 Fuse saving power distribution system fault protection |
| 08/14/2008 | WO2008064914A3 Calibrating a powered actuator |
| 08/14/2008 | WO2008063859A3 Adaptive relaying controlled by autonomous event detection |
| 08/14/2008 | US20080192518 Input current controller arrangement and method |
| 08/14/2008 | US20080192517 Self-excitation synchronous rectification driver |
| 08/14/2008 | US20080192516 Input Circuit for a Switch-Mode Power Supply |
| 08/14/2008 | US20080192392 Parallel HTS Transformer Device |
| 08/14/2008 | US20080192390 Semiconductor device including protection circuit and switch circuit and its testing method |
| 08/14/2008 | DE10307997B4 Antriebssteuereinrichtung für einen selbstgeführten Stromrichter Drive control device for a self-commutated converter |
| 08/14/2008 | DE102007008191A1 Fixed reserve protection system activation condition determining method for medium and high voltage transmission lines, involves calculating conditions as activation criteria so that activation condition is fulfilled for protection system |