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)
10/2001
10/10/2001CN2453593Y Networked low voltage bus protector
10/10/2001CN2453592Y Multi-functional and electric-magnetic type protective switch for three phase motor
10/10/2001CN2453591Y Maintenance-free and explosion-proof type phase interruption protector
10/10/2001CN1316754A Nonflammable and fire-proof type capacitor
10/09/2001US6301090 Control system using an electric motor
10/09/2001US6300858 Thermal switch
10/09/2001US6300856 Electrical transformer
10/09/2001CA2278704C Power supply monitoring ic and battery pack
10/05/2001CA2343097A1 Nonflammable and disaster prevention type capacitor
10/04/2001WO2001073913A1 Device for stopping a single-phase asynchronous motor with phase-shifting capacitor
10/04/2001US20010026428 Relay with overcurrent protection
10/04/2001US20010026427 Overvoltage protection apparatus for a matrix converter
10/04/2001US20010026134 Current-carrying control device and electric power steering apparatus
10/04/2001EP1138051A1 A charge storage device
10/04/2001EP0894356B1 Device and process for electronic monitoring of an adjusting drive in a vehicle
10/04/2001DE10100159A1 Bürstenloser Gleichstromantrieb Brushless DC drive
10/04/2001DE10013110A1 Selektiver Leitungsschutzschalter Selective circuit breaker
10/04/2001DE10009775A1 Device for protecting on board electrical supply systems against overcorrects e.g. for vehicles, has current magnitude/direction sensor, and evaluation/triggering unit for opening circuit depending on evaluation
10/03/2001CN2452194Y Three-phase electric machine protector
10/03/2001CN2452193Y Micro-computer thermal accumulating motor comprehensive protector
10/03/2001CN2452125Y Phase-defect protection AC contactor
10/03/2001CN1315769A Power system protecting controller
10/03/2001CN1072407C Battery pack of charging terminal shortcircuit preventing circuit
10/02/2001US6298295 Window object detection with start-up compensation
10/02/2001US6297940 Protection system for devices in an electrical distribution network
10/02/2001US6297939 Zone selective interlock for a circuit breaker system
10/02/2001US6297619 Secondary battery cell protection circuit
10/02/2001US6297609 Obstruction detecting method for the use in power window apparatus, and power window apparatus
10/02/2001US6297607 Thermal compensation control for a motor starter
10/02/2001US6297573 Three-phase motor
10/02/2001US6296065 Dual-mode non-isolated corded system for transportable cordless power tools
09/2001
09/27/2001WO2001071875A1 Electromotive drive
09/27/2001US20010024095 Movable barrier operator
09/27/2001US20010024094 Movable barrier operator
09/27/2001US20010024093 System for controlling vehicle power sliding door
09/27/2001DE10013888A1 Vacuum cleaner brush fitting has circuit with electronic power switch driven by linear integrated circuit with manual on/off button, rotation/raising protection sensor, and overload protection
09/27/2001DE10011982A1 Electric motor for automobile windows or sun roof is current monitored to prevent trapping of foreign objects
09/27/2001DE10011518A1 Converter motor for variable speed drive, has motor and converter arranged as physical unit, in which converter is self-commutating direct converter.
09/27/2001DE10010092A1 Device for selectively switching off faulty circuit in low voltage supply network, actuates switch-off device if current exceeds threshold, frequency is below threshold and after defined time
09/26/2001EP1137146A2 Selective circuit breaker
09/26/2001EP1135974A2 Electronic transformer for lighting
09/26/2001CN1314596A Electric energy metering controller for oil pumping machine
09/25/2001US6295190 Circuit breaker arrangement with integrated protection, control and monitoring
09/25/2001US6295189 Protection for battery module with diode memory
09/25/2001US6294898 Method and apparatus for modifying limit and protection software in a synchronous generator exciter to match the capability of the turbine-generator
09/25/2001US6294889 Process and a control device for a motor output suitable for being controlled through a communication bus
09/25/2001US6294888 Frequent start protection and economizer control for a motor starter
09/25/2001US6294845 Power supplying apparatus for a vehicle and an intensive wiring apparatus
09/25/2001CA2205498C System for determining the position in automatic doors
09/20/2001WO2001069755A1 Ac/dc chopper for power tool
09/20/2001WO2001069750A2 Improved recloser coordination scheme
09/20/2001WO2001069747A1 Method for monitoring and influencing an electric motor
09/20/2001US20010022715 Power semiconductor circuit
09/20/2001DE10012084A1 Operating electronically commutated DC motor e.g for centrifugal pump in heating or cooling system, by varying frequency of pulse-width modulated signal based on temperature
09/20/2001DE10007777A1 Dauermagnetisch erregte elektrische Maschine und Verfahren zum Betreiben einer solchen Maschine Permanent magnet excited electric machine and method of operating such a machine
09/19/2001EP1134871A2 Electric power system
09/19/2001EP1133612A1 Method for limiting the closing force of movable components
09/19/2001CN2449403Y Large current circuit-open protector
09/19/2001CN2449402Y Phase-lose automatic protector for three-phase ac asynchronous motor
09/19/2001CN2449401Y Automatic grounding amplitude eliminator
09/19/2001CN1314018A Circuit for detecting an inadmissibly high current in an output stage
09/19/2001CN1313996A Device for short-circuit protection
09/19/2001CN1313671A Switch style power supply protection circuit
09/19/2001CN1313666A Electric power system protecting and controlling system and arranging method
09/18/2001US6292344 Floating ground isolator for a communications cable locating system
09/18/2001US6292340 Apparatus for isolation of high impedance faults
09/18/2001US6291958 Temperature limiting controller for electric machines
09/14/2001CA2340312A1 Electric power system
09/13/2001WO2000048281A9 Distributed logic in multiple protective relays
09/13/2001US20010021116 Converter motor with an energy recovery capability
09/13/2001US20010021092 Method and apparatus for protection of batteries
09/13/2001US20010021091 Protective circuit against persistent overvoltage in an electronic unit
09/13/2001US20010020834 Motor operator for over-head air break electrical power distribution switches
09/12/2001EP1131876A1 Method for generating an error signal identifying a short circuit
09/12/2001EP1131875A1 System and method for resetting modular circuit breakers
09/12/2001EP1131874A1 Load protection system in a power modulator
09/12/2001EP1131873A2 A system and a method for protecting an electric motor and its control circuit, and an electric motor
09/12/2001EP1131646A1 Battery power source protecting device for an electromotive device
09/12/2001EP1131642A1 Method for determining an earth-faulted branch
09/12/2001EP0843910B1 Device for electronically controlling a motor vehicle displacement mechanism
09/12/2001CN2447976Y Over-voltage protection trigger circuit for silicon controlled parallel inverse mid-frequency power supply
09/12/2001CN2447975Y Dry-type hollow reactor protector
09/12/2001CN2447814Y Water level control multi-functional protector for three-phase submersible electric pump
09/12/2001CN1312972A Electronic circuit with wide dynamic range of on/off delay time
09/11/2001US6288881 Battery voltage regulator protection circuits
09/11/2001US6288511 Automotive convertible top system
09/11/2001US6286609 AC/DC chopper for power tool
09/07/2001WO2001065677A2 Remote command and control device for at least an electrical element
09/07/2001WO2001065666A1 Fail-safe mechanism for dc-drive
09/06/2001US20010019470 Motor control circuit having motor protective circuit
09/06/2001US20010019469 Protection circuit for a switched mode power supply
09/06/2001DE10010290A1 Electronic overload relay is combined with supply contactor has electronic components mounted on common PCB
09/06/2001DE10008633A1 Generating jam protection signal involves generating signal depending on comparison of detected drive output signal and model signal representing computed output signal of drive
09/05/2001EP1130751A2 Protection circuit for a switched mode power supply
09/05/2001EP1130750A1 Protection circuit for a switched mode power supply
09/05/2001CN2446704Y Motor protector
09/05/2001CN2446703Y Four branching combined overvoltage protector
09/05/2001CN1311912A Circuit for limiting the making current for transformer
09/05/2001CN1070646C Protection elements and method for protecting circuit
09/04/2001US6285533 Method of and apparatus for controlling the operation of variable speed gearing