| 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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| 11/28/2001 | CN1324086A Protection element |
| 11/27/2001 | US6324038 Current control apparatus with overcurrent protective function for a motor |
| 11/27/2001 | US6323611 Circuit for operating an electric motor |
| 11/27/2001 | CA2143364C Field ground fault detector and field ground fault relay for detecting ground fault corresponding to dc component extracted from ground fault current |
| 11/22/2001 | WO2001089056A1 Circuit arrangement for protecting a battery from exhaustive discharge |
| 11/22/2001 | US20010044168 Protective element |
| 11/22/2001 | US20010042631 Dual-mode non-isolated corded system for transportable cordless power tools |
| 11/21/2001 | EP1156527A2 Protective fuse element |
| 11/21/2001 | EP1155488A1 Selective electronic tripping element |
| 11/21/2001 | CN2461190Y Anti-lighting and over-voltage protection device for power and closed circuit TV. |
| 11/21/2001 | CN2461189Y Precision digital display electrically control box for screw pump well |
| 11/21/2001 | CN2460998Y Apparatus for preventing fraudulent use of electric |
| 11/21/2001 | CN1075273C Reverse peak voltage removing circuit |
| 11/20/2001 | US6320731 Fault tolerant motor drive arrangement with independent phase connections and monitoring system |
| 11/20/2001 | US6320359 DC-DC converter and controller for detecting a malfunction therein |
| 11/20/2001 | US6320355 Low power consumption circuit and secondary battery cell protection circuit |
| 11/14/2001 | EP0925626B1 Method and arrangement for disconnecting consumers |
| 11/14/2001 | CN2459806Y Input over/under voltage protector |
| 11/14/2001 | CN2459805Y Intelligent multi-driving motor control protection system |
| 11/14/2001 | CN2459804Y Motor protector |
| 11/14/2001 | CN1074863C 电子继电器 Electronic Relays |
| 11/13/2001 | US6317305 Electrostatic discharge protection in semiconductor devices with reduced parasitic capacitance |
| 11/13/2001 | US6315355 Method and apparatus for triggering a sliding and hinged sun roof |
| 11/08/2001 | US20010038518 Contol circuit for semiconductor device with overheat protecting function |
| 11/08/2001 | US20010038272 Movable barrier operator |
| 11/07/2001 | EP1151517A1 Method and apparatus for automated reconfiguration of an electric power distribution system with enhanced protection |
| 11/07/2001 | EP1151516A1 A distributed monitoring and protection system for a distributed power network |
| 11/07/2001 | EP0857125B1 Circuit arrangement for controlling a wiper motor |
| 11/07/2001 | CN2458801Y Protector for soldering contact of current/voltage type ac contactor |
| 11/07/2001 | CN2458800Y Substration phase protector for electrical appliance switch |
| 11/07/2001 | CN2458799Y Current locking type bus protector |
| 11/07/2001 | CN1321350A Selective electronic tripping element |
| 11/07/2001 | CN1321214A Method for limiting closing force of movable components |
| 11/06/2001 | US6313975 Self-sourcing, isolated zone selective interlocking system for use with electronic trip circuit breakers |
| 11/06/2001 | US6313752 System for displaying dynamic on-line operating conditions of an interconnected power transmission network |
| 11/01/2001 | WO2001082437A2 Method and apparatus for detecting ground fault current |
| 11/01/2001 | US20010035778 Load drive apparatus having parallel-connected switching devices |
| 11/01/2001 | US20010035688 Motor coil-shorting detecting unit |
| 10/31/2001 | EP1150428A2 Load drive apparatus having parallel-connected switching devices |
| 10/31/2001 | EP1149451A1 Method and control mechanism for controlling a drive device for a closing device of a building or an enclosed area |
| 10/31/2001 | DE10019123A1 Torque limitation and overload cut-out device for electric drive e.g. for extractor, compares supplied voltage with auxiliary winding voltage for motor disconnection when maximum torque is exceeded |
| 10/31/2001 | CN2457780Y Hand-held multifunction power source |
| 10/31/2001 | CN2457777Y Over flow protector for rechargeable battery |
| 10/31/2001 | CN2457776Y Phase lost controller for three phase AC motor |
| 10/31/2001 | CN2457775Y 压缩机保护器 Compressor protection |
| 10/31/2001 | CN2457774Y Onmibearing electronic protector for motor |
| 10/31/2001 | CN2457773Y Transformer protector |
| 10/31/2001 | CN2457765Y AC winding motor contactless control cabinet |
| 10/31/2001 | CN1074204C Fan drive device |
| 10/31/2001 | CN1074193C Integrated protector for program-controlled high voltage switch |
| 10/30/2001 | US6311307 Digital current differential system |
| 10/30/2001 | US6310463 Secondary battery cell protection circuit |
| 10/30/2001 | US6310451 Movable barrier operator having force and position learning capability |
| 10/25/2001 | WO2001080394A1 Systems and methods for a safety circuit for an electric motor |
| 10/25/2001 | WO2001080321A1 Device for protecting a photovoltaic module against hot spots and photovoltaic module equipped with same |
| 10/25/2001 | US20010034568 Recloser coordination scheme |
| 10/25/2001 | US20010033473 Nonflammable and disaster prevention type capacitor |
| 10/25/2001 | DE10019707A1 Sensor wire protective circuitry for high voltage cables, has sensor wire connected at cable periphery or cable end with short-circuit switch reacting in delay-free fashion to provide electronic protection |
| 10/25/2001 | DE10019629A1 Drei-Phasen-Motor Three-phase motor |
| 10/25/2001 | DE10017856A1 Wireless data transmission unit e.g. remote controller, includes power supply based on condenser storage and solar cell charging |
| 10/25/2001 | CA2406449A1 Device for protecting a photovoltaic module against hot spots and photovoltaic module equipped with same |
| 10/24/2001 | EP1148608A2 Improvements in or relating to ring main units |
| 10/24/2001 | EP1148607A1 Excessive temperature protection circuit for a three phase motor |
| 10/24/2001 | EP1148606A1 Method to detect lost information in a microprocessor |
| 10/24/2001 | EP1147938A1 Process of controlling a seat and seat using this process |
| 10/24/2001 | EP0966782B1 Method for electronic control and adjustment of the movement of electrically actuated units |
| 10/24/2001 | CN2456349Y Earthed monitoring instruments |
| 10/24/2001 | CN2456305Y Phaseoff protected contactor |
| 10/24/2001 | CN2456304Y Feeding wire terminals for cutoff of switch on post by power off |
| 10/24/2001 | CN1319270A Method and apparatus for electrically controlling and regulating movement of electrically operated aggregate of motor vehicle |
| 10/23/2001 | US6307723 Parallel-feeder directional overcurrent protection |
| 10/23/2001 | US6307279 Power supplying apparatus for a vehicle and intensive wiring apparatus |
| 10/18/2001 | WO2001078210A1 Switching method for an electromagnetic switching device and an electromagnetic switching device corresponding thereto |
| 10/18/2001 | WO2001078209A2 Improved line current differential protective relaying method and relay for in-zone tapped transformers |
| 10/18/2001 | WO2001078208A1 Method for protecting a dc generator against overvoltage |
| 10/18/2001 | DE19963504C1 Relais mit Überstromschutz Relay with overcurrent protection |
| 10/18/2001 | DE10017372A1 Electric line overload current protection method |
| 10/17/2001 | EP1146620A2 Driving method of semiconductor switching device and power supply apparatus operated according to said method |
| 10/17/2001 | EP1146191A1 Improvements to automobile anti-pinching systems |
| 10/17/2001 | EP1145264A1 Silicon equivalent ptc circuit |
| 10/17/2001 | EP1144224A2 Electrical system with battery and security disconnection |
| 10/17/2001 | CN2454976Y Electric test-control protective device |
| 10/17/2001 | CN2454969Y Machine card protection apparatus for automation system of transformer substation |
| 10/17/2001 | CN2454968Y Three-phase asynchronous motor protector |
| 10/17/2001 | CN2454967Y Autoamtic-protection charging machine |
| 10/17/2001 | CN2454965Y Thunder-proof telephone service-box |
| 10/17/2001 | CN1318211A Battery over-discharge protection |
| 10/17/2001 | CN1317697A Method and device for detecting zero-line deficiency of three-phase circuit |
| 10/16/2001 | US6304053 Automatic firing change when motor leads swap on delta motor soft starter |
| 10/16/2001 | US6304048 Method and device for determining torque in an automotive power window system |
| 10/11/2001 | WO2001076036A2 Differential protective relay for electrical buses with improved immunity to saturation of current transformers |
| 10/11/2001 | US20010029434 Method for limiting an electric current through an electrical component, and limiting apparatus |
| 10/11/2001 | US20010028573 Electric power system |
| 10/11/2001 | US20010028543 Ground fault protection circuit for discharge tube lighting circuit |
| 10/11/2001 | US20010028542 Load protection system in a power modulator |
| 10/11/2001 | DE10017265A1 Detection method for ground line, involves assigning trust degree to error direction data in every protection device such that trust degree is taken into consideration when fault location is determined |
| 10/11/2001 | CA2342270A1 System and method for monitoring the operation of a power converter |
| 10/10/2001 | EP1143590A1 Power system protection and control system |
| 10/10/2001 | EP1143464A2 Nonflammble and disaster prevention type capacitor |
| 10/10/2001 | EP1142077A1 Safety device associated with a sliding panel powered by an electric motor and method using same |