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