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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10/09/2012 | US8284528 DC switch |
10/09/2012 | US8283909 Switching mode power supply apparatus and power supply method thereof |
10/09/2012 | US8283896 Method and system for charging and discharging high-voltage energy storage devices |
10/09/2012 | US8282361 Controller for a motor and a method of controlling the motor |
10/04/2012 | WO2012132769A1 Battery protection system |
10/04/2012 | WO2012132435A1 Vehicle power supply device |
10/04/2012 | WO2012098390A3 Photovoltaic inverter unit |
10/04/2012 | US20120248864 System and Method for Operating Inverters |
10/04/2012 | DE102011084362A1 Vorrichtungen und Verfahren zum sicheren Fahr-, Lade- und Rückspeisebetrieb eines Elektrofahrzeugs Devices and methods for safe driving, loading and regenerative operation of an electric vehicle |
10/04/2012 | DE102011006512A1 Steuereinheit Control unit |
10/03/2012 | EP2504918A1 Preventing load rejection overvoltages in synchronous rectifiers |
10/03/2012 | EP2504900A1 Safety circuit assembly and method for the fail-safe monitoring of a movement variable |
10/03/2012 | CN202475363U Motor electricity-saving device |
10/03/2012 | CN202475336U Contactless reversing contactor |
10/03/2012 | CN202475325U Automatic motor control device |
10/03/2012 | CN202475272U Electric energy feedback type power supply aging device |
10/03/2012 | CN202475239U Filtering protection circuit applied to double-feed converter control system power supply |
10/03/2012 | CN202475034U On-site intelligent distributed feeder automation device |
10/03/2012 | CN202474957U Rechargeable battery pack |
10/03/2012 | CN202474940U Lithium battery miner lamp charging management switch based on current direction |
10/03/2012 | CN202474843U Total current interlocking low-current route selecting starter |
10/03/2012 | CN202474842U Three-phase phase variable current leakage operated protector |
10/03/2012 | CN202474841U Relay protection system of area power grid |
10/03/2012 | CN202474840U Area networking protecting device |
10/03/2012 | CN202474839U Alternating current emergency tripping power supply |
10/03/2012 | CN202474838U Integrated protector for full-automatic building power supply |
10/03/2012 | CN202474837U Mining dual-path combined switch protection device |
10/03/2012 | CN202474836U Outdoor high-voltage opened type bus protection composite apparatus |
10/03/2012 | CN202474835U Bus differential protection system of intelligent transformer substation |
10/03/2012 | CN202474834U Comprehensively protecting and blocking circuit for IGBT drive |
10/03/2012 | CN202474833U Output short-circuit protective circuit for battery charger |
10/03/2012 | CN202474832U Storage battery protective circuit for vehicle-mounted device |
10/03/2012 | CN202474831U Lithium battery protection circuit |
10/03/2012 | CN202474830U Power supply circuit via DC power supply for electronic device unit |
10/03/2012 | CN202474829U Heavy current switch group circuit for power lithium ion protection plate |
10/03/2012 | CN202474828U AC/DC power supply protecting circuit driven by electric power |
10/03/2012 | CN202474827U Countercurrent prevention controller |
10/03/2012 | CN202474826U Centralized power supply |
10/03/2012 | CN202474825U Low-voltage open-phase protected-type electrified display device |
10/03/2012 | CN202474824U Direct-current motor blocking and rotation preventing driving circuit of game machine |
10/03/2012 | CN202474823U Integrated protection device for electromotor |
10/03/2012 | CN202474822U Motor fan operation detector |
10/03/2012 | CN202474821U Circuit structure for preventing out of control of motor in electric operator |
10/03/2012 | CN202474820U Transition period transformer protection system |
10/03/2012 | CN202474819U Over-current protection device for transformer main body |
10/03/2012 | CN202474818U Apparatus for single phase transformer to study excitation inrush current |
10/03/2012 | CN202474817U Intelligent microcomputer comprehensive protection device for transformer of power plant |
10/03/2012 | CN202474816U Active reverse connection prevention and protection circuit of solar battery |
10/03/2012 | CN202474815U Overcurrent protection device for voltage transformer |
10/03/2012 | CN202474637U Box-type transformer substation |
10/03/2012 | CN202474129U Intelligent green environment-friendly starting battery pack |
10/03/2012 | CN1348623B Method and apparatus for automated reconfiguration of an electric power distribution system with enhanced protection |
10/03/2012 | CN102714482A Disconnection from mains using switches for power tools |
10/03/2012 | CN102714470A Protected power conversion device and control method |
10/03/2012 | CN102714416A Management techniques for electric power generation equipment |
10/03/2012 | CN102714407A Safety circuit assembly and method for the fail-safe monitoring of a movement variable |
10/03/2012 | CN102710215A Control circuit of oil pump motor for mobile garbage compression transfer station |
10/03/2012 | CN102710158A Inverter device |
10/03/2012 | CN102710134A Modular power supply device with reverse prevention function and reverse-prevention control circuit |
10/03/2012 | CN102710112A Overheat protection device and method of inverter |
10/03/2012 | CN102710022A Power distribution network feeder protection and reconfiguration scheme based on intelligent feeder terminal unit |
10/03/2012 | CN102709999A Energy-saving charger |
10/03/2012 | CN102709985A Modularized storage battery charging management system and charging management method |
10/03/2012 | CN102709980A Protective plate for series lithium battery pack based on battery protective chip |
10/03/2012 | CN102709894A On-line checking method and system for relay protection setting value |
10/03/2012 | CN102709893A Method for isolating faults of distributed generation/stored energy-containing microgrid |
10/03/2012 | CN102709892A Generalized element-based protection control method |
10/03/2012 | CN102709891A Distributed parameter measurement impedance-based relay protection method for single-phase grounding fault of power transmission line |
10/03/2012 | CN102709890A Distribution network protection method taking randomness of photovoltaic power station into consideration |
10/03/2012 | CN102709889A Self-healing method and self-healing system for faults of power distribution network |
10/03/2012 | CN102709888A Method and system of on-line fixed value operation of signal protection substation |
10/03/2012 | CN102709887A Control method for restraining secondary arc current of controllable series compensation circuit |
10/03/2012 | CN102709886A Status monitoring and overvoltage protection system of high-voltage TCR (Thyristor Controlled Reactor) thyristor valve gate set |
10/03/2012 | CN102709885A Method for isolating power distribution network fault without constant time lag in over-current protection of transformer substation |
10/03/2012 | CN102709884A Bridge type LC (inductance capacitance) resonance circuit with overcurrent protection function |
10/03/2012 | CN102709883A Under-voltage protection circuit of switch power source |
10/03/2012 | CN102709882A Short circuit protection circuit of direct current power supply provided with precharging function |
10/03/2012 | CN102709881A Device utilizing adjustable resistance method to curb DC of neutral point of transformer |
10/03/2012 | CN102709880A Module with optocoupler protection function |
10/03/2012 | CN102709879A Automatic identification method of relay protection device |
10/03/2012 | CN102709877A Household appliance |
10/03/2012 | CN102709870A Power supply protection circuit and electronic product |
10/03/2012 | CN102707198A Feeder automation failure positioning method based on failure backcasting |
10/03/2012 | CN102707107A Portable adjustable direct current voltage source for test of frequency changer |
10/03/2012 | CN101924480B Constant-current power supply circuit |
10/03/2012 | CN101908753B Current differential protection method automatically adaptive to variable frequency motor |
10/03/2012 | CN101867175B Shutdown circuit of GPS vehicle-mounted position system with function of remote multi-domain automatic shutdown |
10/03/2012 | CN101841296B Intelligent power distributing and saving device |
10/03/2012 | CN101841189B Centralized protection, measurement and control device and realizing method thereof |
10/03/2012 | CN101806270B Control device of starting and generating integrated system used for small-sized internal-combustion engine |
10/03/2012 | CN101764391B Method and system for braking magnetizing inrush current in differential protection of ultra-high voltage transformer |
10/03/2012 | CN101436773B Restarting method of motor |
10/03/2012 | CN101385397B Circuit arrangement for providing an operating DC voltage |
10/03/2012 | CN101383500B Method for suppressing neutral point DC magnetic biasing by single grounding network and device thereof |
10/03/2012 | CN101277011B Self-adjusting voltage filtering technique compensating for dynamic errors of capacitive voltage transformers |
10/02/2012 | US8280653 Zone selective interlocking test method and apparatus, and circuit interrupter apparatus and power distribution system including the same |
10/02/2012 | US8279644 Method and system for providing maximum power point tracking in an energy generating system |
10/02/2012 | US8279565 Methods and systems relating to overcurrent circuit protection |
10/02/2012 | US8278882 Charging monitor |
10/02/2012 | US8278855 Controller of motor preventing an increase in inverter loss |