Patents
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)
11/2012
11/13/2012CA2566020C Central vacuum cleaning system control subsystems
11/08/2012WO2012150893A1 Method and equipment to treat a fluid channel prior to a relining procedure and an exchangeable tool having a coupling mechanism to be used in connection thereto
11/08/2012US20120281444 Solar energy conversion and utilization system
11/08/2012US20120281443 Inverter device comprising a topology surveying a series of capacitors
11/08/2012US20120281327 Self-adaptive surge-proof circuit
11/08/2012US20120281321 Disconnector for distribution transformers with dielectric liquid
11/08/2012US20120280644 Inverter and a method for controlling an electric machine
11/08/2012DE102011075353A1 Fault monitoring system for feed point powered distribution station of electrical power supply network, has control device to determine whether error before input side, between input and output sides or behind output side is present
11/07/2012EP2521156A1 Disconnector for distribution tarnsformers with dielectric liquid
11/07/2012EP2519957A1 System for monitoring oil level and detecting leaks in power transformers, reactors, current and potential transformers, high voltage bushings and similar.
11/07/2012CN202524673U Protection type shell body of motor protector
11/07/2012CN202524306U Communication power supply module with a plurality of protection functions
11/07/2012CN202524146U High-efficiency energy-saving charger
11/07/2012CN202524135U Solar charging circuit
11/07/2012CN202524130U High-precision charging power supply
11/07/2012CN202524103U Bothway constant flow source charge-discharge device for storage battery
11/07/2012CN202524072U Cascading protection circuit of battery monomers
11/07/2012CN202524071U Battery pack protection and monitoring device of battery exchange system
11/07/2012CN202524070U Protective circuit for preventing reverse connection of accumulator
11/07/2012CN202524069U Reverse-polarity protection circuit
11/07/2012CN202524068U Vehicle inverter-to-ground short circuit protection device
11/07/2012CN202524067U Input over-voltage and under-voltage protection device of communication power supply module
11/07/2012CN202524066U Motor default phase protection device
11/07/2012CN202524065U Three-phase motor protection switch against phase loss and overcurrent
11/07/2012CN202524064U Relay protection system for power plant
11/07/2012CN202524063U 330kV-500kV transformer neutral point complete equipment
11/07/2012CN202524062U Overcurrent protection device for power factor correction
11/07/2012CN102771036A Electric motor for driving a motor vehicle component
11/07/2012CN102769315A Pre-charging control device for motor controller of electric vehicle and electric vehicle using pre-charging control device
11/07/2012CN102769280A Tree-shaped power supply mode override trip prevention system
11/07/2012CN102769279A High-resistance grounding phase selection method for longitudinal zero-sequence protection of line protection device
11/07/2012CN102769278A Layering protective system
11/07/2012CN102769277A Improved structure of safety protection device of low-voltage distribution cabinet
11/07/2012CN102769276A Implementing method of protecting IEGT (injection enhanced gate transistor) based on relay protection tripping signal
11/07/2012CN102769275A Over-discharge protection circuit for rechargeable battery
11/07/2012CN102769274A Battery management system
11/07/2012CN102769273A Switch power source output overcurrent protection device
11/07/2012CN102769272A Failure latching and resetting system of power converter and power converter
11/07/2012CN102769271A Output protection circuit for alternating-current power supply
11/07/2012CN102769270A Direct current (DC)-DC boosting power supply output circuit
11/07/2012CN102769269A Electric locomotive main transformer overheat protection control method
11/07/2012CN102769268A Distribution transformer protection device
11/07/2012CN102364869B Wide-voltage constant-power motor speed stabilization thermostat
11/07/2012CN102104252B Power system dynamic equivalence method suitable for electromagnetic transient analysis
11/07/2012CN101908851B Miniaturized crane safety starter
11/07/2012CN101895212B Method for supplying power to control circuit of power control device
11/07/2012CN101872978B Power supply device for ultrahigh-power silicon carbide smelting furnace and silicon carbide smelting device
11/07/2012CN101860015B Phase failure protector of electric motor
11/07/2012CN101834457B Lithium battery management system
11/07/2012CN101764555B Servo system and safety control device
11/07/2012CN101682094B Power storage unit and vehicle having power storage unit
11/06/2012US8305783 Systems and methods for polyphase alternating current transformer inrush current limiting
11/06/2012US8305782 Redundant current valve control in a high voltage power transmission system
11/06/2012US8305048 Vehicle power generating device and an alternator control method
11/06/2012US8305024 Motor starting and switching
11/06/2012US8305020 Electric power conversion device, compressor motor with the device, and air conditioner with the motor
11/06/2012US8304806 ESD and EMC optimized HV-MOS transistor
11/01/2012WO2012148992A1 Synchronous rectifier control techniques for a resonant converter
11/01/2012WO2012100564A3 Self-adaptive lightning-proof anti-surge control circuit
11/01/2012US20120275069 Electric machine assembly with fail-safe arrangement
11/01/2012US20120275068 Fault tolerant electrical machine
11/01/2012US20120275066 Grounding system for photovoltaic arrays
11/01/2012US20120274256 Cooled motor
11/01/2012US20120274219 Programmable Landscape Lighting Controller with Self-Diagnostic Capabilities and Fail Safe Features
10/2012
10/31/2012EP2517351A1 Disconnection from mains using switches for power tools
10/31/2012EP2517347A2 Reconfigurable inverter having failure tolerance for powering a synchronous poly-phase motor having permanent magnets, and assembly including said inverter and motor
10/31/2012EP2517342A2 Over voltage protection of a switching converter
10/31/2012EP2516218A1 Wiper controller
10/31/2012DE112010003366T5 Energieversorgungssteuerung Power supply controller
10/31/2012DE102011018972A1 Solar module protection device for solar energy plant that is attached at roof of building, has triggering device for activating switching unit depending on signal such that interconnection between input and output is disconnected
10/31/2012CN202513868U Voltage regulator of generator of automobile
10/31/2012CN202513861U Contactor-based centralized controller for irrigation and drainage pumping station
10/31/2012CN202513856U Warping machine automatic control energy-saving device
10/31/2012CN202513855U Dual insurance starter of three-phase asynchronous motor
10/31/2012CN202513839U Self-diagnosis direct current power supply
10/31/2012CN202513760U Motor with thermal protector
10/31/2012CN202513624U Electric automobile charging device with battery detecting function
10/31/2012CN202513584U Combined energy feedback type power-saving device of multiple control lift
10/31/2012CN202513569U Transformer neutral point overvoltage protector
10/31/2012CN202513564U Single-ended transient voltage protection device of ultra-high voltage direct current (DC) transmission line
10/31/2012CN202513561U Arc light protection system of high-voltage switch cabinet
10/31/2012CN202513560U Television, television power supply and television metal oxide semiconductor (MOS) tube short-circuit protection circuit
10/31/2012CN202513559U Battery short-circuit protection circuit
10/31/2012CN202513558U Solar battery hot spot protection circuit
10/31/2012CN202513557U Safety protecting system for energy storing device
10/31/2012CN202513556U Charging time control protector
10/31/2012CN202513555U DSP (Digital Signal Processor) digital control photovoltaic power generation inverter
10/31/2012CN202513554U Short-circuit protection apparatus of wind energy converter
10/31/2012CN202513553U Phase-failure and overload protector of machine tool
10/31/2012CN202513552U Voltage protector based on transistors
10/31/2012CN202513551U Open-phase automatic delay protector based on unijunction transistor
10/31/2012CN202513550U Irrigation and drainage motor automatic protector
10/31/2012CN102763303A Battery protection circuit and method for energy harvester circuit
10/31/2012CN102763297A Method of monitoring the grading margin between time-current characteristics of intelligent electronic devices
10/31/2012CN102762406A 功率转换装置 Power conversion means
10/31/2012CN102762010A Induction type illumination device for illuminating during power failure
10/31/2012CN102761302A Direct current motor controller for lifting hydraulic pump of electric forklift
10/31/2012CN102761287A Digital power module
10/31/2012CN102761248A Power conversion circuit and conversion controller
10/31/2012CN102761161A Mobile power supply
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