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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05/10/2000 | EP0999633A2 Earth-fault protection for electricity network |
05/10/2000 | EP0999632A1 Stop control device for single-phase asynchronous motor with capacitor |
05/10/2000 | EP0999631A1 Device for the protection of an electric motor and related method |
05/10/2000 | EP0998776A1 Control circuit for a direct current motor |
05/10/2000 | EP0919018B1 Method for the contactless approach of the lower stop position of a motor vehicle window operated by extraneous force |
05/10/2000 | CN2377760Y Line fault sectional controller |
05/10/2000 | CN2377759Y Intelligent energy-saving electric controller |
05/10/2000 | CN2377688Y Linear adjustable voltage limit circuit arrangement for charging battery |
05/10/2000 | CN1052351C A power window control system of an automobile |
05/09/2000 | US6060863 Charge and discharge control circuit and chargeable power supply unit |
05/09/2000 | US6060848 System for controlling a brushless electric motor |
05/09/2000 | US6060185 Comprising a battery voltage-monitoring means, an overcharge-detecting means for sending out a charge-finishing signal when a voltage detected by the battery voltage-detecting means is higher than a preset value |
05/04/2000 | DE19949783A1 Switch-off device for protecting motor vehicle circuit from overcurrent and excess temperature, controls power device based on output of buffer storing state based on current and temperature detector outputs |
05/04/2000 | DE19848468A1 Verfahren zur elektronischen Überwachung und Steuerung des Öffnungs- und Schließvorgangs von elektrisch betriebenen Aggregaten A method for electronically monitoring and controlling the opening and closing process of electrically driven aggregates |
05/03/2000 | EP0998007A1 Integrated circuit device for monitoring power supply |
05/03/2000 | EP0998002A2 DC supply unit |
05/02/2000 | US6058353 System and method for providing backup protection for circuit breaker failure |
05/02/2000 | US6058320 Method and device for controlling the power source of a portable radio transceiver |
05/02/2000 | US6056384 Failure diagnosing circuit and method |
05/02/2000 | CA2077902C Arc diverter |
04/27/2000 | WO2000024106A1 Method for electronic surveillance and control of the opening and closing procedure for electrically operated units |
04/26/2000 | EP0995252A1 Self-sourcing, isolated zone selective interlocking system for use with electronic trip circuit breakers |
04/26/2000 | EP0995251A1 Solid state overload relay |
04/26/2000 | CN2376119Y Fan-coil unit dual-motor variable speed protection |
04/26/2000 | CN2376118Y Submersible pump three-phase electric machine open-phase and overload protection |
04/26/2000 | CN1251694A Battery protection system |
04/26/2000 | CN1051841C Method for detection of current in air conditioner |
04/25/2000 | US6055141 Protective device for an electric motor corresponding process and drive device with an electric motor including said protective device |
04/25/2000 | US6054841 Charge/discharge control circuit and chargeable electric power source apparatus |
04/25/2000 | US6054824 Drive circuit with signal detection capability for a DC brushless fan motor |
04/25/2000 | US6054823 Verification of fan operation |
04/25/2000 | US6054822 Method of detecting overload state of on-vehicle electric motor and apparatus thereof |
04/25/2000 | CA2015618C Automatic window/door system |
04/20/2000 | WO2000022500A1 Protection system |
04/19/2000 | CN2375021Y Overvoltage safety protector for electrical appliances |
04/19/2000 | CN2375020Y Phase failure protective switch |
04/19/2000 | CN2375019Y Open-phase protector for electric motor |
04/19/2000 | CN1250965A Self-adaptive weighing differential protection method for bus |
04/18/2000 | US6052016 Charge and discharge control circuit |
04/18/2000 | US6051955 Protection circuit and battery unit |
04/18/2000 | US6051945 Anti-pinch safety system for vehicle closure device |
04/13/2000 | WO2000021179A1 Battery pack protection circuit |
04/13/2000 | WO2000021175A1 A protective relay-based monitoring system of dc power within an electric power substation |
04/13/2000 | WO2000020878A1 Motor winding contamination detector and detection |
04/13/2000 | CA2312926A1 Battery pack protection circuit |
04/12/2000 | EP0993092A2 Overcurrent protection with a voltage-controlled time-multiplier |
04/12/2000 | EP0993008A1 A combination apparatus of distribution transformer and switch |
04/12/2000 | EP0992098A1 Antisqueeze protection |
04/12/2000 | CN2373935Y Three-phase phase-loss protector |
04/12/2000 | CN2373934Y Three-phase motor power-off safety protector |
04/12/2000 | CN2373933Y Motor control protector |
04/12/2000 | CN2373932Y Sequential control power-off protector for electric motor |
04/12/2000 | CN1250552A Circuit for blocking a semiconductor switching device on overcurrent |
04/11/2000 | US6049144 Rechargeable battery with a built-in safety circuit for a portable electric apparatus |
04/11/2000 | CA2108443C Negative sequence directional element for a relay useful in protecting power transmission lines |
04/06/2000 | DE19843343A1 Monitoring method for motor relays for garage door drives, involves continued monitoring of current after movement, with other relay being switched on to stop motor if current is detected after movement end |
04/05/2000 | EP0990293A1 Method for detecting phase failure in an asynchronous machine |
04/05/2000 | CN2372816Y Accumulator protector |
04/05/2000 | CN2372815Y Multifunctional protector for ac electric motor |
04/04/2000 | US6046896 DC-to-DC converter capable of preventing overvoltage |
04/04/2000 | US6046893 Programmable electronic current limiter |
04/04/2000 | US6046569 Safety method and apparatus for resistive start of electromotors |
04/04/2000 | US6046514 Bypass apparatus and method for series connected energy storage devices |
03/30/2000 | WO2000017982A1 Method and arrangement for electrically controlling and regulating the movement of an electrically operated aggregate of a motor vehicle |
03/30/2000 | DE19939861A1 Load control system for drive unit has driver circuit stopping operation of drive unit on basis of output signal from determination unit indicating short-circuit of signal input |
03/30/2000 | DE19842444A1 Überspannungsabschaltung Overvoltage shutdown |
03/29/2000 | EP0988687A1 A method for communication between a low potential level and a valve located on high voltage potential in a high voltage converter station as well as a device for such a communication |
03/29/2000 | EP0988685A1 Supplemental battery overcharge protection device |
03/29/2000 | EP0988678A1 Method and device for controlling a sliding or lifting sun roof device |
03/29/2000 | EP0988677A1 Safety device for a drive mechanism |
03/29/2000 | EP0988676A1 Overvoltage protection circuit for a generating system |
03/29/2000 | CN2371713Y Induction motor protector |
03/29/2000 | CN1249076A Motor reversing circuit |
03/28/2000 | US6043620 Method for moving a power-operated closure part |
03/28/2000 | US6042513 Non destructive runaway protection for an electric motor |
03/23/2000 | WO2000016429A1 Battery over-discharge protection |
03/22/2000 | EP0987807A2 Fault protection apparatus |
03/22/2000 | EP0987806A2 Excess voltage switch-off circuit |
03/22/2000 | EP0986889A1 Residential protection service center |
03/22/2000 | CN1050717C Method and apparatus for controlling invertor |
03/21/2000 | US6040988 Converter with DC voltage intermediate circuit and method for operating such a converter |
03/21/2000 | US6040972 Protection device for communication |
03/17/2000 | CA2282624A1 Fault protection apparatus |
03/16/2000 | WO2000014846A1 Drive device and method for moving a vehicle part |
03/16/2000 | WO2000014845A1 Drive device and method for moving a vehicle part |
03/16/2000 | WO2000014844A1 Drive device and method for moving a vehicle part |
03/16/2000 | WO2000014843A1 Drive device and method for moving a vehicle part |
03/16/2000 | DE19840164A1 Antriebsvorrichtung und Verfahren zum Verstellen eines Fahrzeugteils Drive device and method for adjusting a vehicle part |
03/16/2000 | DE19840163A1 Antriebsvorrichtung und Verfahren zum Verstellen eines Fahrzeugteils Drive device and method for adjusting a vehicle part |
03/16/2000 | DE19840162A1 Antriebsvorrichtung und Verfahren zum Verstellen eines Fahrzeugteils Drive device and method for adjusting a vehicle part |
03/16/2000 | DE19840161A1 Antriebsvorrichtung und Verfahren zum Verstellen eines Fahrzeugteils Drive device and method for adjusting a vehicle part |
03/15/2000 | EP0985242A1 Overcharge protection device and methods for lithium-based rechargeable batteries |
03/15/2000 | CN2369393Y Automatic motor protector |
03/15/2000 | CN1050475C Power generating equipment for vehicle |
03/15/2000 | CN1050457C 电路保护装置 Circuit protection devices |
03/14/2000 | US6037745 Battery charger with monitor and protection circuits |
03/14/2000 | CA2133360C Inductively activated control and protection circuit for refrigeration systems |
03/09/2000 | WO2000013304A1 Method for limiting an electric current passing through an electrical component and limiting device |
03/09/2000 | WO2000013282A1 Electric circuit |
03/09/2000 | DE19838411A1 Method to identify faults of electric operating device; uses active power, distorting and displacement wattless powers, unsymmetrical actual and differential powers |