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