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)
06/2010
06/10/2010WO2010063366A1 Battery comprising a cell assembly of several individual cells which are interconnected in parallel and/or in series
06/10/2010US20100142235 Power conversion device
06/10/2010US20100142103 Compact Secondary Substation Comprising A Fault Protection System, A Method For Fault Protection In A Compact Secondary Substation, And A Control Unit For Performing The Method
06/10/2010US20100142102 Low Force Low Oil Trip Mechanism
06/10/2010US20100141195 Motor control method for mdps system
06/10/2010DE102008060975A1 Vorrichtung zur Überwachung von Thyristoren Device for monitoring of thyristors
06/10/2010DE102004020830B4 Sicherheits-Schaltungsverbund mit Ringkonzept für Steuergeräte der Leistungselektronik Safety switch with composite ring approach to control power electronics devices
06/09/2010EP2194547A1 Energy storage device
06/09/2010EP2193588A1 Multi-cell protection circuit and method
06/09/2010EP2193585A1 Adjustment device
06/09/2010CN201504223U Multi-power energy-saving motor for oil pumping unit
06/09/2010CN201504206U Automatic control single-phase motor
06/09/2010CN201504189U Three-phase inverter
06/09/2010CN201504094U High-voltage energy consumption control device
06/09/2010CN201504093U Electronic jumper capable of avoiding false triggering
06/09/2010CN201504084U Portable digital protection and monitoring device
06/09/2010CN1965457B Battery pack protecting circuit and battery pack
06/09/2010CN1929230B Power converter and power supply for conditional response to a fault condition
06/09/2010CN1866716B Electrical power source, operational method of the same, inverter and operational method of the same
06/09/2010CN1732612B Device and method for providing over-voltage protection during power up of DC-DC converter
06/09/2010CN101730963A Fault current limiter
06/09/2010CN101728973A Driving device and overload protection method thereof
06/09/2010CN101728874A Power system with charging protection mechanism
06/09/2010CN101728861A Deep discharge zero-power solar photovoltaic controller
06/09/2010CN101728858A Uninterruptible power supply and method for tripping thereof
06/09/2010CN101728857A Uninterruptible power supply and method for selective tripping thereof
06/09/2010CN101728842A Battery case
06/09/2010CN101728841A Battery case
06/09/2010CN101728819A Intelligent switch and control method thereof
06/09/2010CN101728818A Multi-drive amplifier system and overcurrent detection method thereof
06/09/2010CN101728817A Multi-axis driving system
06/09/2010CN101728816A Motor overheat protector
06/09/2010CN101728815A Compressor
06/09/2010CN101728810A Universal combined plastic shell of protector
06/09/2010CN101348085B Electric railway feeder line impedance protecting method based on power supply section differential pressure and leading-phase current
06/09/2010CN101325332B Method for implementing element for measuring earthing distance without relevance to load current and ground resistance
06/09/2010CN101291104B Protecting method for sudden drop of electric and electronic equipment with medium or high electric power
06/09/2010CN101267157B Control circuit with short-circuit protection for current sense terminal of power converters
06/09/2010CN101202436B Stator interturn protection method special for triple-frequency harmonical increment brake
06/09/2010CN101192748B Differential protection differential current reducing method for digital transformer
06/09/2010CN101188354B Test simulation method for failure line selection of small current ground system
06/09/2010CN101183786B Anti-CT saturated sampling value differential protection of predicting CT linear transform area
06/09/2010CN101165983B Current limiting short circuit protection circuit
06/09/2010CN101145756B A vertical installation line motor cut-off braking protection device and method
06/09/2010CN101136582B Control method of DC side-discharging circuit of full power convertor
06/09/2010CN101091298B Total switch device for backup protection
06/08/2010US7733620 Chip scale gas discharge protective device and fabrication method of the same
06/08/2010US7733616 Abnormality detecting device of electric power converting device and abnormality detecting method
06/03/2010WO2010060903A1 A method and device for facilitating the localisation of a fault in a grid
06/03/2010US20100136389 Power storage unit and vehicle having power storage unit
06/03/2010US20100134075 Electrical component fault detection
06/03/2010US20100134057 Overvoltage protection for a converter
06/02/2010EP2191549A2 Superconducting switch operation
06/02/2010DE102008059226A1 Electric tool device i.e. battery-operated electric hand tool device, operating method, involves determining and testing whether control measures are executed before reaching freewheeling phase based on level of freewheeling current
06/02/2010CN201499126U Control circuit of AC servo driver
06/02/2010CN201499093U High-frequency switch power supply
06/02/2010CN201499006U Power supply for on-line monitoring system of transmission line
06/02/2010CN201498988U ZnO and SiC compound circuit used for arc extinction, harmony extinction and overvoltage protection
06/02/2010CN201498982U Combined surge protector for end equipment
06/02/2010CN201498981U 10KV Low-current grounding wire selection system
06/02/2010CN201498980U Closing coil protective circuit of high-voltage switch operating mechanism
06/02/2010CN201498979U Circuit breaker anti-bouncing protecting circuit
06/02/2010CN201498978U Battery over-discharge protection circuit
06/02/2010CN201498977U High-frequency electroplating power supply controller
06/02/2010CN201498976U Non-contact intelligent overload protective device
06/02/2010CN201498936U High-voltage distribution box
06/02/2010CN201497948U Novel 6 U wide-temperature power supply
06/02/2010CN201497782U Device for monitoring insulating property of DC operation system
06/02/2010CN201497595U Transformer temperature measurer
06/02/2010CN201491574U Failure detecting device of irrigation sprinkler
06/02/2010CN101719696A Centralized bus protection device and method applied to digitized transformer station
06/02/2010CN101719664A Overload protection device for wind farms
06/02/2010CN101719663A Grounding line selection method, grounding line selection device and application system based on active component of zero sequence current
06/02/2010CN101719662A Fault line selection device for distribution line of small-current grounding system
06/02/2010CN101719661A Definite value check method for high-voltage DC transportation control protecting system
06/02/2010CN101719660A Method for automatically resetting grounding protection device of small-current system
06/02/2010CN101719659A An arc monitor
06/02/2010CN101719658A Short-circuit protection device of power supply
06/02/2010CN101719657A System and method for simulating internal fault of electric generator
06/02/2010CN101719656A Adjusting method of differential protection during voltage adjustment of on-load transformer
06/02/2010CN101719432A Vacuum switching tube for protective circuit breaker of generator outlet
06/02/2010CN101440991B Control method of low voltage operating fixed speed air conditioner
06/02/2010CN101359029B Single bus DC earth fault on-line automatic monitoring apparatus
06/02/2010CN101335493B H bridge driving device of automobile electric boosting steering motor
06/02/2010CN101320908B Interturn starting method of shunt reactor
06/02/2010CN101304217B Switch power supply for chain type convertor power unit controller
06/02/2010CN101295874B Electric power line pilot protection decision method based on fault component positive sequence synthetic impedance
06/02/2010CN101291062B Analysis method of DC power flow in dynamic topology electric network
06/02/2010CN101290931B Self-cooled thyristor valve of high power and mounting vehicle
06/02/2010CN101262172B Cycle time division control circuit
06/02/2010CN101262140B Serial and parallel switching and charging method and charging device for lithium dynamic battery unit
06/02/2010CN101242095B A permanent failure judgement method for power transmission line with parallel reactor
06/02/2010CN101237145B M-series modulation and variance judgement based parallel network active alone island detection system and method
06/02/2010CN101227086B Power distribution network cable-line commingle line fault route selection anastomosing method using extension theory
06/02/2010CN101217233B A distance relay of non-response system oscillation
06/02/2010CN101183789B Method for setting compound characteristic impedance suitable for series capacity compensation circuit
06/02/2010CN101159374B Load driving device and electrical device using the same
06/02/2010CN101145687B Delay time generation circuit, semiconductor device, battery pack, and electronic device
06/01/2010US7729148 Method for thermal protection of frequency converter and a frequency converter
06/01/2010US7728561 Apparatus for controlling power generation for vehicle