| 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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| 11/01/2000 | CN1271983A Power transducer protective device |
| 10/31/2000 | US6141199 Device for protecting a braking resistor for locomotives |
| 10/31/2000 | US6141198 Solid state overload relay |
| 10/31/2000 | US6140915 Alarm apparatus for vehicle-onboard AC generator |
| 10/31/2000 | US6140903 Thermal switch |
| 10/31/2000 | US6140789 Method of detecting, diagnosing and automatically correcting abnormalities in servo control system |
| 10/31/2000 | CA2208137C Power window apparatus with sensor failure detection |
| 10/31/2000 | CA2057482C Transformer fault protection device |
| 10/31/2000 | CA2052101C Fault detection method and apparatus |
| 10/25/2000 | EP1046971A2 Electronic control device |
| 10/25/2000 | EP1046960A1 Electrophotographic apparatus |
| 10/25/2000 | EP1046545A2 Power supply monitoring apparatus for vehicle |
| 10/25/2000 | EP1046210A1 Battery pack protection circuit |
| 10/25/2000 | EP1046044A1 Motor winding contamination detector and detection |
| 10/25/2000 | CN2403177Y Motor for fan |
| 10/25/2000 | CN2403164Y Heavy current thermoprotector |
| 10/25/2000 | CN2403163Y Phase-interruption,overload and short-circuit protection device for motor |
| 10/25/2000 | CN2403162Y Thermal protector for three-phase motor |
| 10/25/2000 | CN2403161Y Motor protector |
| 10/25/2000 | CN2403160Y Joint connecting wire protection device |
| 10/25/2000 | CN1271458A Power distribution network incorporating a voltage support transformer and process of use |
| 10/25/2000 | CN1271197A Protective circuit for battery |
| 10/25/2000 | CN1271196A Triphase line or load protector module |
| 10/25/2000 | CN1271195A Protective controller, monitoring system and storage medium of storage program |
| 10/24/2000 | US6137695 Self-oscillation type switching power supply and method |
| 10/24/2000 | US6137665 Selective electronic trip unit, a circuit breaker comprising such a trip unit and a selective tripping process |
| 10/24/2000 | US6137418 Single channel apparatus for on-line monitoring of three-phase AC motor stator electrical faults |
| 10/24/2000 | US6137366 High VSWR mismatch output stage |
| 10/24/2000 | CA2183176C High power dc blocking device for ac and fault current grounding |
| 10/21/2000 | CA2305887A1 Protective circuit for battery |
| 10/19/2000 | DE19916533A1 Electronic monitoring unit for AC motor, compares running time and rest time of motor with preset values to switch off motor under appropriate conditions |
| 10/18/2000 | EP1045501A2 A piloting circuit for an inductive load, in particular for a dc electric motor |
| 10/18/2000 | EP1044490A1 Method for electronic surveillance and control of the opening and closing procedure for electrically operated units |
| 10/18/2000 | CN2402042Y Intelligent electromagnetic control protector |
| 10/18/2000 | CN2402041Y Electronic protector for motor |
| 10/18/2000 | CN1270432A Charge switch controlling circuits |
| 10/18/2000 | CN1057646C Virtual third harmonic blocking method for transformer microcomputer protection |
| 10/17/2000 | US6134128 Method for protecting a high-performance power converter and a protection arrangement for executing the method |
| 10/17/2000 | CA2206409C Improved variable frequency drive reflected wave suppressors |
| 10/12/2000 | WO2000048284B1 A distributed monitoring and protection system for a distributed power network |
| 10/11/2000 | EP1042860A1 Controlled rectifier bridge with over-voltage protection |
| 10/11/2000 | CN2400966Y 智能电机控制器 Intelligent Motor Controller |
| 10/11/2000 | CN2400952Y Domestic overvoltage automatic controller |
| 10/05/2000 | WO2000059094A2 Devices and methods for protection of rechargeable elements |
| 10/05/2000 | WO2000059090A1 Power line protection devices and methods for providing overload protection to multiple outputs |
| 10/05/2000 | DE19956104A1 Sensorlose Erfassung eines festgestellten Rotors eines Motors mit geschalteter Reluktanz Sensorless detection of a detected rotor of a switched reluctance motor |
| 10/04/2000 | EP1041597A2 Protective device |
| 10/04/2000 | CN2399874Y Protector for singal breaking of controller |
| 10/04/2000 | CN1269064A Switch-mode power supply with over-current protection |
| 10/04/2000 | CN1269063A Overcurrent protection circuit with improved ptc. trip endurance |
| 10/03/2000 | US6128170 Analog based first and fast second pulse removal system |
| 10/03/2000 | US6127808 Overcharge/overdischarge detecting circuit having a reset means and chargeable electric power source apparatus |
| 09/28/2000 | WO2000057528A1 An improvement in a starting system for an electric motor |
| 09/28/2000 | WO2000057527A1 Fault data synchronization via peer-to-peer communications network |
| 09/28/2000 | DE19913818A1 Heating device for vehicles comprises motor with actuating blower and fan wheel while the rotational axis has three signal givers mounted to the fan wheel with spacing |
| 09/28/2000 | DE19912062A1 Verfahren zum Betreiben eines elektromotorischen Antriebs für einen Aufzug und danach betriebener Aufzug A method of operating an electric motor drive for an elevator and then activated elevator |
| 09/28/2000 | DE19911317A1 Operating method for an electrical device with turn-on protection comprises push-button marking a motor switch with first pulse and one/breaker of turn-on flank with a second pulse of the same off switch |
| 09/28/2000 | DE10009618A1 Battery protection method e.g. for notebook computer battery pack, has switch between battery pack and supplied load held in off position in dependence on detected battery cell voltage |
| 09/27/2000 | EP1039611A2 High-voltage switch gear protection circuit |
| 09/27/2000 | CN2398761Y Overvoltage protective device |
| 09/27/2000 | CN2398760Y Automatic electric protector for electrical equipment |
| 09/27/2000 | CN2398759Y Noncontacting stepless speed regulating protective switch for three-phase electric motor |
| 09/27/2000 | CN1267938A Comprehensive motor phase failure controller |
| 09/27/2000 | CN1267927A Protection method, control circuit and battery apparatus |
| 09/26/2000 | US6125020 Compressor protective device for refrigerator and method of protecting refrigerator compressor |
| 09/26/2000 | CA2079468C Arcing fault detector |
| 09/25/2000 | CA2272269A1 Flow responsive time delay pump motor control logic |
| 09/21/2000 | WO2000055952A1 Mimic high pass filter in a protective relay |
| 09/21/2000 | DE19854953C1 Batteriebordnetz mit Sicherheitsabschaltung Battery electrical system with safety shutdown |
| 09/20/2000 | EP1037357A2 Temperature protection control for a motor starter |
| 09/20/2000 | EP1037356A2 Frequent start protection and economizer control for a motor starter |
| 09/20/2000 | EP1037355A2 Thermal compensation control for a motor starter |
| 09/20/2000 | EP1037354A2 Method for operating an electromotoric drive for an elevator and elevator using such a method |
| 09/20/2000 | EP1037353A2 Motor overload coil control |
| 09/20/2000 | EP0974081A4 Power supply and electronic ballast with low-cost inverter bootstrap power source |
| 09/20/2000 | CN2397657Y Overheat protecive therminal box for two valued capacitive motor |
| 09/20/2000 | CN2397599Y Double system relay protector for distribution equipment |
| 09/20/2000 | CN2397583Y Open circuit protector for current transformer |
| 09/20/2000 | CN1267123A Thermal compensation controller for starter of motor |
| 09/20/2000 | CN1267122A Fraquent start protection and energy-saving controller for starter of motor |
| 09/20/2000 | CN1267114A Phase-loss fuse protector for transformer station |
| 09/20/2000 | CN1267113A Motor overload coil controller |
| 09/20/2000 | CN1267112A Temp. protection control for starter of motor |
| 09/19/2000 | US6122153 Temperature protection control for a motor starter |
| 09/14/2000 | DE19928135A1 Motor control circuit for regulating hydraulic pump of motor vehicle braking system, supplies back EMF to high-pass filter and square-wave signal to microprocessor for monitoring and signaling operating status |
| 09/14/2000 | DE19911070A1 Electrical motor e.g. commutator motor with thermal protector, has cutoff contact which makes contact with external edge of brush holder in case of overload causing softening of brush spring and displacement of brush holder |
| 09/13/2000 | EP1035001A2 Method and apparatus for detecting a motor stall condition in an electric assist steering system |
| 09/13/2000 | EP1034437A2 In-situ fault detection apparatus and method for an encased energy storing device |
| 09/13/2000 | CN2396557Y Multifunctional protector for motor and speed reducer |
| 09/13/2000 | CN2396544Y Flame-proof type special multifunctional vacuum electromagnetic starter for driving of mine |
| 09/12/2000 | US6118311 Output circuit capable of suppressing bounce effect |
| 09/12/2000 | US6118253 Charging and discharging control circuit and charging type power supply device |
| 09/08/2000 | WO2000052803A1 Closing device with a safety function |
| 09/06/2000 | CN1265539A Power supply control equipment and method |
| 09/06/2000 | CN1265533A Earthing protection method for small current earthing system |
| 09/06/2000 | CN1265532A Earthing protection method for stator of power generator |
| 09/05/2000 | US6115230 Method and apparatus for detecting arcs and controlling supply of electrical power |
| 09/05/2000 | US6114828 Apparatus and method for preventing overload on switching device in inverter circuit for motor applicable to electric vehicle |
| 09/05/2000 | US6114822 Method for the contactless approach of the lower stop position of a motor vehicle window operated by extraneous force |
| 09/05/2000 | US6114819 Automotive convertible top system for an automobile |