| 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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| 03/20/2013 | CN202818107U Power supply device based on power provided by ethernet |
| 03/20/2013 | CN202817903U Microcomputer relay protection device based on DSP |
| 03/20/2013 | CN202817902U Line load distribution device in power distribution network automation system |
| 03/20/2013 | CN202817860U Intelligent portable mobile power supply charger |
| 03/20/2013 | CN202817836U Mobile optical power circuit |
| 03/20/2013 | CN202817800U Solar energy photovoltaic generation controller |
| 03/20/2013 | CN202817769U Mining dynamic reactive power compensation device |
| 03/20/2013 | CN202817743U A voltage protector |
| 03/20/2013 | CN202817738U Power distribution network automation system line fault automatic isolation device |
| 03/20/2013 | CN202817737U FTU-based undercurrent grounding system |
| 03/20/2013 | CN202817736U Single-phase large power electronic control leakage switch |
| 03/20/2013 | CN202817735U Environmental safety measuring and controlling device of railway power substation suitable for passenger transport special line |
| 03/20/2013 | CN202817734U Short-circuit protection circuit for electronic switch |
| 03/20/2013 | CN202817733U Small high-voltage circuit breaker coil protection device |
| 03/20/2013 | CN202817732U Portable intelligent protection device used for intelligent transformer station |
| 03/20/2013 | CN202817731U Tripping control device for start of switching current of distribution network 10kV switching station |
| 03/20/2013 | CN202817730U Distribution box self-diagnosis protection circuit |
| 03/20/2013 | CN202817729U Solid-state relay with the temperature protection and adaptive input voltage function |
| 03/20/2013 | CN202817728U Multifunctional switch cabinet intelligent protection measurement and control apparatus |
| 03/20/2013 | CN202817727U POS machine power circuit |
| 03/20/2013 | CN202817726U Transistor over-temperature protection device |
| 03/20/2013 | CN202817725U Protection circuit capable of preventing bidirectional silicon controlled rectifier from being triggered by mistake |
| 03/20/2013 | CN202817724U Battery protection circuit for electric vehicle |
| 03/20/2013 | CN202817723U Overload protective device for cadmium-nickel storage battery |
| 03/20/2013 | CN202817722U Overload protective device for cadmium-nickel storage battery |
| 03/20/2013 | CN202817721U Marine high-power AC-DC (alternating current-direct current) converter based on thyristor |
| 03/20/2013 | CN202817720U A novel fault-protection self-recovery circuit |
| 03/20/2013 | CN202817719U 多功能电源保护电路 Multifunction power protection circuit |
| 03/20/2013 | CN202817718U Motor open-phase protecting device with no auxiliary power supply |
| 03/20/2013 | CN202817717U Simple motor open-phase protector |
| 03/20/2013 | CN202817716U 三相自动开关 Three-phase automatic switch |
| 03/20/2013 | CN202817715U Motor protection device capable of conducting remote alarm |
| 03/20/2013 | CN202817714U Intelligent motor protector |
| 03/20/2013 | CN202817713U Adjustable mechanical-electrical integration three-phase motor protection switch |
| 03/20/2013 | CN202817712U Motor waterproof protector |
| 03/20/2013 | CN202817711U Multi-point real-time intelligent high-voltage motor protector |
| 03/20/2013 | CN202817710U Generator power protection circuit |
| 03/20/2013 | CN202817709U Main protection measuring and controlling device for transformer of railway power substation suitable for passenger transport special line |
| 03/20/2013 | CN202817708U Relay protector |
| 03/20/2013 | CN202817707U A protective circuit of an intelligent low-voltage reactive compensation control system |
| 03/20/2013 | CN202817567U Intelligent box-type wind power substation |
| 03/20/2013 | CN202816637U Voltage transformer |
| 03/20/2013 | CN202815603U Generator water shortage linkage controlling device |
| 03/20/2013 | CN102986106A A method for transfer of control between devices in a substation system and a device thereof |
| 03/20/2013 | CN102986105A Electronic overcurrent release for circuit breakers |
| 03/20/2013 | CN102985836A Fast distance protection for energy supply networks |
| 03/20/2013 | CN102983783A Solar energy electricity generation and storage and transmission protection device |
| 03/20/2013 | CN102983754A Parallel variable frequency power supply for high power and high voltage test |
| 03/20/2013 | CN102983607A Precharge device for motor controller of electromobile |
| 03/20/2013 | CN102983587A Wind power generation system with overspeed protection and operation method thereof |
| 03/20/2013 | CN102983559A Integrated circuit capable of improving voltage endurance |
| 03/20/2013 | CN102983558A Circuit protection device and circuit protection method |
| 03/20/2013 | CN102983557A Battery protective circuit and charging power switch control signal producing circuit thereof |
| 03/20/2013 | CN102983556A Battery protection circuit with self-recovery function after discharge over-current protection |
| 03/20/2013 | CN102983555A Semiconductor integrated circuit, protection circuit and battery pack |
| 03/20/2013 | CN102983554A Sampling short-circuit protection circuit for high-power factor driving system and method |
| 03/20/2013 | CN102983553A Method and device for overload protection of switching power supply |
| 03/20/2013 | CN102983552A Temperature measuring and protecting method and device for rotor of rotary motor |
| 03/20/2013 | CN102983551A Longitudinal differential protection current phase compensation method for YNd series transformer |
| 03/20/2013 | CN102983550A Transformer interturn short circuit protection method based on current ratio variable quantity |
| 03/20/2013 | CN102983549A Novel power transformer control system having direct current magnetic biasing compensation function |
| 03/20/2013 | CN102983548A Short circuit protective method applied to electric power system autotransformer |
| 03/20/2013 | CN102981103A Method for positioning closed-loop network faults through fault signal self-synchronization |
| 03/20/2013 | CN102104335B Three-terminal voltage regulator for power supply |
| 03/20/2013 | CN102035178B Method for transformer excitation surge current latching |
| 03/20/2013 | CN101958568B Electric direct-current-operated switching power supply and storage battery pack management method thereof |
| 03/20/2013 | CN101924378B 电池监控装置及其方法 Battery monitor apparatus and method |
| 03/20/2013 | CN101900790B Relay failure detecting device |
| 03/20/2013 | CN101847862B Detachable moulded case circuit breaker with mandatory protection function |
| 03/20/2013 | CN101765956B Independent power supply system |
| 03/20/2013 | CN101755371B Charge monitoring device |
| 03/20/2013 | CN101501953B 开关和马达组件 Switches and motor assembly |
| 03/19/2013 | US8400747 Superconducting coil, superconducting magnet, and method of operating superconducting magnet |
| 03/19/2013 | US8400118 Output control apparatus of generator |
| 03/19/2013 | US8400093 Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly |
| 03/14/2013 | WO2013034633A1 Current distribution arrangement comprising two interconnected switches, particularly power switches for low voltages |
| 03/14/2013 | WO2013034428A1 Method and arrangement for the surge protection of inverters for photovoltaic systems |
| 03/14/2013 | US20130063990 Protection circuit for power converter |
| 03/14/2013 | DE102012108474A1 Verfahren und System zum Erfassen von Fehlern in einer bürstenlosen Erregereinrichtung Method and system for detecting errors in a brushless exciter device |
| 03/14/2013 | DE102012016246A1 Switching circuit for voltage source e.g. fuel cell stack, has semiconductor switch that generates conductive switching signal, when predetermined condition is not satisfied operation of voltage source |
| 03/14/2013 | DE102011082568A1 Gleichspannungs-Leitungsschutzschalter DC circuit breaker |
| 03/14/2013 | DE102011082339A1 Anordnung zur Stromverteilung mit zwei miteinander verbundenen Schaltern, insbesondere Leistungsschaltern für Niederspannungen Arrangement for current distribution with two interconnected switches, especially circuit breakers for low voltages |
| 03/13/2013 | EP2568560A1 Frequency inverter and method for detecting and blocking a residual current in a frequency inverter |
| 03/13/2013 | EP2568557A1 Method of operating a residual current circuit breaker and residual current circuit breaker for a frequency converter |
| 03/13/2013 | EP2567434A1 Improved surge protection |
| 03/13/2013 | CN202798849U Intrinsic safety type mobile phone |
| 03/13/2013 | CN202798550U Motor and controller thereof |
| 03/13/2013 | CN202798538U Soft-starting MCC control cabinet |
| 03/13/2013 | CN202798497U DC stabilized voltage supply of precise adjustable switch |
| 03/13/2013 | CN202798470U Liquid crystal display television LLC resonant power supply assembly |
| 03/13/2013 | CN202798026U Power supply device and electric scooter |
| 03/13/2013 | CN202797978U Series capacitor protection device suitable for traction power substation |
| 03/13/2013 | CN202797920U System for preventing override trip of supply network |
| 03/13/2013 | CN202797919U Protective circuit with self-feedback and self-diagnosis functions |
| 03/13/2013 | CN202797918U User demarcation load switch |
| 03/13/2013 | CN202797917U Circuit protection system based on reclosure split-phase locking technology |
| 03/13/2013 | CN202797916U Monitoring and control system of electric power lines |
| 03/13/2013 | CN202797915U Two-pole self-recovery voltage deviation protector |
| 03/13/2013 | CN202797914U Self-reclosing overvoltage undervoltage protector |
| 03/13/2013 | CN202797913U Quality evaluation system for arc-fault circuit interrupter |