Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031)
10/1999
10/27/1999CN1233129A Telephone network business operation prompt, soft key operation and protection against surge voltage
10/27/1999CN1233099A System protection relay device
10/27/1999CN1046055C 断路器 Breaker
10/26/1999US5974545 Circuit breaker trip unit processor initialization program
10/26/1999US5973902 Modified surge protector
10/26/1999US5973899 Automated power feeder restoration system and method
10/26/1999US5973896 Shock and arc protection device for an electrical distribution system
10/26/1999US5973500 Apparatus for detecting insulation defects in devices connected into power distribution networks
10/26/1999US5972417 Spray gun power supply monitor
10/21/1999WO1999053590A1 Direct grounding system capable of limiting ground fault current
10/21/1999DE19817226A1 Safety circuit against back-transformed voltages
10/20/1999EP0951046A2 Ground fault circuit breaker
10/20/1999EP0950278A1 Circuit for selective power supply to electrical units
10/20/1999EP0950277A1 Device and method relating to protection of an object against over-currents comprising over-current reduction
10/20/1999EP0950276A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
10/20/1999EP0949881A1 Surgical handpiece
10/20/1999EP0858604A4 Source of waveform distortion discrimination circuit and method
10/20/1999CN2344905Y Thunderstroke display device for high voltage transmission and distribution line
10/20/1999CN2344872Y Sparkless electronic safety device
10/20/1999CN1045849C Power swing detection apparatus for electric power
10/20/1999CN1045821C Exciting ground detector and ground relay in which grounding is detected by DC
10/19/1999US5969956 Method and a device for communication in a high voltage converter station
10/19/1999US5969930 Differential protection device including a rectifier and a toroid having a nanocrystalline core
10/19/1999US5969926 Short circuit protection arrangement for an output buffer of an integrated circuit
10/19/1999US5969925 Fire-initiation-protected power distribution system
10/19/1999US5969921 Ground fault electrical switching apparatus for coordinating tripping with a downstream ground fault switch
10/19/1999US5969920 Test circuit for verifying operation of an arc fault detector
10/19/1999CA2156542C Active discharge circuit for charged capacitors
10/14/1999WO1999052090A1 Method for switching off a power supply in a dangerous situation and a corresponding safeguarding arrangement
10/14/1999DE19816140A1 Verfahren und Schaltungsanordnung zur Sicherheitsüberprüfung einer Hochspannungsversorgungsanlage Method and circuit arrangement for security verification of a high voltage supply system
10/14/1999CA2327296A1 Method for switching off a power supply in a dangerous situation and a corresponding safeguarding arrangement
10/13/1999EP0949735A2 Method and circuit arrangement for safety control of a high voltage supply system
10/13/1999EP0949734A2 Dual microprocessor electronic trip unit for a circuit interrupter
10/13/1999EP0949733A2 Accessory network for an electronic trip unit
10/13/1999CN2343701Y Power supply phase lack protector
10/13/1999CN2343700Y 多功能熔丝装置 Multifunction fuse device
10/13/1999CN1231589A Surgical handpiece
10/12/1999US5966283 Surge suppression for radio frequency transmission lines
10/12/1999US5966280 Modular, distributed equipment leakage circuit interrupter
10/12/1999US5966071 Power window with detecting function of sticking of foreign matter
10/07/1999WO1999050865A1 High voltage device, especially a surge diverter
10/07/1999DE19831769C1 Arrangement for monitoring a current network, esp. a three-phase current network with earth and neutral lines
10/07/1999DE19815537A1 HV device with arcing monitor for encapsulation housing
10/06/1999EP0948111A2 Fault protection arrangements and methods for electric power distribution systems
10/06/1999EP0947041A2 A device and a method for protecting an object against fault related over-currents
10/06/1999EP0875082B1 Socket
10/06/1999CN2342505Y Action protector for leakage current
10/06/1999CN2342504Y Double fuse overvoltage protector
10/06/1999CN1231077A Power switch equipment for power supply and power distribution
10/06/1999CA2268233A1 Dual microprocessor electronic trip unit for a circuit interrupter
10/05/1999US5963408 Ground fault circuit interrupter incorporating miswiring prevention circuitry
10/05/1999US5963406 Arc fault detector with circuit interrupter
10/05/1999US5963405 Low cost apparatus for detecting arcing faults and circuit breaker incorporating same
10/05/1999US5963001 Circuit arrangement and method for operating an adjusting device
10/05/1999US5962932 Power supply apparatus with circuit load sensor
09/1999
09/30/1999DE19820173C1 Power switch electronic release
09/30/1999DE19813103A1 Verfahren und Vorrichtung zur Ansteuerung eines Verbrauchers Method and device for controlling a consumer
09/30/1999DE19812882A1 Circuit-breaker drive circuit arrangement
09/29/1999EP0945953A2 Method of detecting pinching of object of power window apparatus
09/29/1999EP0945950A2 Method and apparatus for controlling a load
09/29/1999EP0945948A2 Test circuit for verifying operation of an arc fault detector
09/29/1999EP0945930A1 Electrical risk monitoring device
09/29/1999EP0839401B1 Electrical apparatus
09/29/1999CN2341301Y Flat safety unit
09/29/1999CN2341300Y Computer digital high voltage feeding universal protecter
09/29/1999CN1230303A Method and arrangement for disconnecting consumers
09/29/1999CN1230302A Circuit protection arrangements
09/29/1999CN1230301A Circuit protection arrangements
09/29/1999CN1230284A Circuit arrangement for reducing transients caused by electromechanical switch with overcurrent protection
09/28/1999USRE36317 Indicating fuse block
09/28/1999US5959826 Control device for an electromechanical contactor-circuit breaker type device with separable power contacts
09/28/1999US5959818 Method and apparatus for self-powered three-phase sensing to determine true RMS current values with separate burdens for each current transformer
09/28/1999US5959817 Control device for operating a wiper motor
09/28/1999US5959816 Voltage regulator circuit
09/28/1999US5959537 Variable trip fault indicator
09/22/1999EP0796515B1 Instrument panel
09/22/1999CN2340113Y Earth-leakage display device of earth-leakage automatic switch
09/21/1999US5956222 Electronic switch for quick, automatic response to current overloads
09/21/1999US5956221 Overload relay having accurate trip current dial markings
09/21/1999US5956220 Adaptive distance protection system
09/21/1999US5956218 Earth-leakage circuit breaker with automatic monitoring capability
09/21/1999CA2049591C Direction indicating fault indicator
09/17/1999CA2260474A1 Transient voltage surge suppressor with three-way fault indication
09/16/1999WO1999046842A1 Protective circuit
09/16/1999WO1999046841A1 Electronic tripping device comprising control and display elements
09/16/1999DE19910360A1 Intelligent automated line circuit-breaker for overcurrent protection
09/16/1999DE19811956A1 Electronic release especially for low-voltage (LV) circuit-breaker
09/15/1999EP0889804B1 Device for interrupting the flow of current in a cable
09/15/1999CN2338902Y Multi-functional lightning protection power supply distribution box
09/15/1999CN2338899Y Automatic switch device with prevention of fraudulent use of electricity
09/15/1999CN2338898Y Comprehensive protection arrangement for safety use of electricity
09/15/1999CN1228883A Power supply device
09/15/1999CN1228604A Safety device especially used for car technique
09/14/1999US5952801 For controlling activation of a motor
09/10/1999WO1999045622A1 Current-limiting arrangement with a superconductive transformer arrangement in an electric circuit
09/09/1999DE19909052A1 Protection initialization method for electronic release device
09/09/1999DE19909051A1 Error detection and correction in trigger circuits
09/09/1999DE19809314A1 Anordnung sowie Verfahren zur Strombegrenzung mit einer supraleitenden Transformatoranordnung in einem elektrischen Schaltkreis Arrangement and method for current limiting with a superconducting transformer arrangement in an electrical circuit
09/08/1999EP0940901A2 Control system, method of protectively controlling electric power system and storage medium storing program code
09/08/1999EP0940835A2 Fuse particularly for applications in the motor car field
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