Patents
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)
06/2001
06/27/2001EP1110290A1 Drive device and method for moving a vehicle part
06/27/2001EP1110289A1 Drive device and method for moving a vehicle part
06/27/2001EP1110288A1 Drive device and method for moving a vehicle part
06/27/2001CN2437069Y Low-voltage protector with wrong action resistance for high-voltage motor
06/27/2001CN2437068Y Multi-function motor protector
06/27/2001CN2437040Y Permanent magnetic type mine lamp short-circuit protector
06/27/2001CN2436260Y Electric shock protector for arc welding machine with self-protection control
06/27/2001CN1301423A Battery pack protection circuit
06/27/2001CN1301074A Protector for electric faults
06/26/2001US6252752 Overload protection apparatus and a speed reducer having such an apparatus
06/26/2001US6252751 Method and apparatus for distributing alternating electrical current to motors via a direct current bus
06/26/2001US6252379 Variable on demand energy source
06/26/2001US6252365 Breaker/starter with auto-configurable trip unit
06/26/2001US6252256 Overvoltage protection circuit
06/26/2001CA2204970C Microprocessor based motor control system with phase difference detection
06/21/2001WO2001045226A1 Overcurrent protection for the series fuse
06/21/2001DE19957261A1 Electrical power supply arrangement with superconducting magnets as energy store
06/21/2001DE10064576A1 Current limiting circuit for stepper motor drive circuit, has supply terminal joined via resistance with control connection of first electronic switch
06/21/2001DE10059142A1 Strombegrenzungsapparat Current limiting apparatus
06/20/2001EP1109281A2 Current limiting circuit
06/20/2001EP1108279A1 High vswr mismatch output stage
06/20/2001CN2435873Y Overvoltage and undervoltage protective device for domestic electrical equipment
06/20/2001CN2435427Y Electric control box for vibrating impacter
06/20/2001CN1300456A Distributed logic in multiple protective relays
06/19/2001US6249732 Window characteristic mapping for object detection
06/19/2001US6249126 Capacity detecting circuit for a battery
06/19/2001US6249063 Battery cell bypass with frangible actuator
06/14/2001WO2001043257A1 Differential protective method
06/14/2001WO2001043256A1 Differential protective method
06/14/2001WO2001043253A2 System for power transformer differential protection
06/13/2001EP1107420A2 Power supply circuit
06/13/2001EP1105969A1 Electronic circuits with wide dynamic range of on/off delay time
06/13/2001EP1105956A1 Arcing fault detection system
06/13/2001EP1105955A1 Circuit for detecting an inadmissibly high current in an output stage
06/13/2001DE19959783A1 Testing time shortened selectivity system in electrical circuits
06/13/2001DE19956657A1 Schaltungsanordnung zum Schutz eines elektrischen Betriebsmittels Circuitry for protection of electrical equipment
06/13/2001CN1067190C 故障诊断电路 Troubleshooting Circuit
06/13/2001CN1067187C Self-exciting switch power source having overcurrent protection
06/12/2001US6247003 Current transformer saturation correction using artificial neural networks
06/12/2001US6246564 Activating device
06/12/2001US6246199 Automotive convertible top system
06/12/2001US6246196 Movable barrier operator
06/07/2001WO2001041282A1 Power supply controller of digital electronic device and power supply controlling method
06/07/2001US20010002772 Power supply controller of digital electronic device and power supply controlling method
06/07/2001DE19958529A1 Method to determine motor current through motor; involves defining parameter comparison with motor current as function of parameters motor characteristic data, such as rpm and operation voltage
06/07/2001DE19952572A1 Motorische Antriebseinheit mit einer elektronischen Steuerungseinrichtung für Verstelleinrichtungen in Kraftfahrzeugen sowie Verfahren zur Steuerung der Antriebseinheit Motor drive unit with an electronic control device for adjusting devices in motor vehicles, and methods for controlling the drive unit
06/07/2001DE19952507A1 Electrical short-circuiting device for power distribution switchgear
06/07/2001CA2325267A1 Single phase induction motor with bi-directional switching and overload protection
06/06/2001CN2433761Y Protecter for one-phase dry-type submersible pump
06/06/2001CN1298191A Synchronous open-circuit method for breaker of power generator and its control equipment
06/05/2001US6243276 Power supply system for battery operated devices
06/05/2001US6243244 Method for automated reconfiguration of a distribution system using distributed control logic and communications
06/05/2001CA2172712C Improvement in the electronic control arrangement for motor-driven refrigeration compressors
05/2001
05/31/2001WO2001039346A1 Integrated fault protection for switched electronic systems for satellite applications
05/31/2001US20010002111 Current limiting apparatus
05/31/2001US20010002101 Apparatus for safely disconnecting an electrical load from an electrical DC voltage supply
05/31/2001DE10053007A1 Instantaneous stator winding temperature determination for motor, involves solving difference equation where difference in temperature of winding at given time and immediately preceding timepoint is solved w.r.t operating parameters
05/30/2001EP1104074A1 Voltage limiter for use in circuits permissive of linear adjustments in parallel with battery sets
05/30/2001EP1104072A2 Anti-lock switch for an electric motor
05/30/2001EP1104071A2 Circuit for monitoring an electrical installation
05/30/2001EP1104070A2 Power generation system, and method for installing the same
05/30/2001CN2432716Y Time voltage automatic sectional device
05/30/2001CN2432715Y Multifunctional open-phase relay
05/30/2001CN2432714Y Fully automatic three-phase electric motor open-phase display protector
05/30/2001CN1297271A Electronic thermorelay
05/30/2001CN1066584C Multiangular arc relay
05/29/2001US6239610 Arrangement for detecting jamming situations in electric drives
05/29/2001US6239569 Movable barrier operator
05/29/2001US6239566 Drive system for a permanently excited electric motor having at least one phase winding
05/29/2001US6239565 Electric motor and motor control system
05/29/2001US6239515 Circuit for the protection of electrical devices
05/29/2001US6237698 Terminal protection system for portable power tools
05/24/2001US20010001534 Method and apparatus for modifying limit and protection software in a synchronous generator exciter to match the capability of the turbine-generator
05/23/2001EP1102379A1 Protection for a three-phase distribution transformer immersed in a dielectric fluid comprising a microswitch
05/23/2001EP1101266A1 Circuit for limiting the making current for a transformer
05/23/2001EP1101234A1 Device for short-circuit protection
05/23/2001DE19957260A1 Trip/release magnets protection method e.g for relays, isolators and circuit-breakers
05/23/2001CN2431641Y Split electric leakage breaker
05/23/2001CN1296656A Mimic high pass filter in a protective relay
05/23/2001CN1296631A Motor operator for overhead air break electrical power distribution switches
05/23/2001CN1296187A Accident point positioning system
05/23/2001CN1066289C Electrostatic discharge circuit for high-speed, high-voltage circuit
05/22/2001US6236949 Digital sensor apparatus and system for protection, control and management of electricity distribution systems
05/22/2001US6236546 Crowbar circuit verification testing system
05/22/2001US6236176 Method for electronic control and adjustment of the movement of electrically actuated units
05/22/2001US6236134 Hybrid alternator
05/17/2001DE19956126A1 Operating method for low-voltage (LV) network circuit
05/17/2001DE19954659A1 Blockierschutzschaltung für einen Elektromotor Stall protection circuit for an electric motor
05/16/2001EP1099951A2 Failure point locating system
05/16/2001CN2430804Y Intelligent monitoring protector for breaker and motor fault
05/16/2001CN1295367A Digitally protected and controlled motor
05/16/2001CN1295172A Electric drive device
05/16/2001CN1066007C Discharge lamp ballast
05/15/2001US6233396 Load control system for motor
05/15/2001US6233164 Protection circuit for a switched-mode power supply
05/15/2001US6232751 Excitation control system
05/15/2001US6232737 Method of detecting, diagnosing and automatically correcting abnormalities in servo control system
05/15/2001US6232734 Power module
05/10/2001WO2001033688A1 Synchronous motor with an electronic control for adjustment devices in motor vehicles and method for controlling them
05/10/2001WO2001033308A1 Method of regulating the electrical voltage and device for carrying out said method