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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01/10/2013 | WO2013004289A1 Method for obtaining a long-term short-circuit in a power electronics module |
01/10/2013 | WO2013004285A1 System for detecting internal winding faults of a synchronous generator, computer program product and method |
01/10/2013 | US20130010507 Protected power conversion device and control method |
01/10/2013 | DE202012010078U1 Rangierantrieb mit intelligenter Zentraleinheit Moving device with intelligent CPU |
01/10/2013 | DE102011078687A1 Aktivieren einer Steuerungsvorrichtung zur Abschaltung des Hochvoltsystems Activating a control device for switching off the high-voltage system |
01/10/2013 | DE102011078672A1 Elektronisch kommutierter Elektromotor mit einer Defektabschaltung Electronically commutated electric motor with a cut-off defect |
01/09/2013 | EP2544353A1 Inverter and overload protection method |
01/09/2013 | EP2544322A1 A method of selecting between internal and external faults in parallel lines using one-end measurements |
01/09/2013 | EP2543534A1 Energy storage device with improved security, automobile with a respective energy storage device and method for operating an energy storage device |
01/09/2013 | EP2543096A1 Battery and electric apparatus assembly and battery for powering the apparatus, having magnetically controlled studs |
01/09/2013 | DE202011106224U1 Intelligentes Mittelspannungsnetz Intelligent medium voltage network |
01/09/2013 | CN202663172U Novel lithium battery charger |
01/09/2013 | CN202663103U Feeder microcomputer protection device |
01/09/2013 | CN202663102U Electric power load detecting system |
01/09/2013 | CN202663101U Intelligent low-voltage anti-electric-shock protection device |
01/09/2013 | CN202663100U Middle and low-voltage bus protection device based on optical principles |
01/09/2013 | CN202663099U Over-current and over-voltage protector with bimetallic-strip temperature switch |
01/09/2013 | CN202663098U Water level protective device for low voltage power distribution cabinet |
01/09/2013 | CN202663097U Improved structure of safety protection device of low-voltage distribution box |
01/09/2013 | CN202663096U Safety device for low-voltage power distribution cabinet |
01/09/2013 | CN202663095U Inversion-voltage protective circuit of insulated gate bipolar transistor (IGBT) |
01/09/2013 | CN202663094U Hysteresis protective circuit |
01/09/2013 | CN202663093U Battery protection and windy self-starting circuit of off-grid wind power generation system |
01/09/2013 | CN202663092U Circuit protecting battery against overcharge |
01/09/2013 | CN202663091U Output protection circuit for alternating-current power supply |
01/09/2013 | CN202663090U Open-phase monitoring device |
01/09/2013 | CN202663089U Current-type open-phase protection module |
01/09/2013 | CN202663088U Phase sequence recognition control device of electromotor |
01/09/2013 | CN202663087U Smart protector for motor |
01/09/2013 | CN202663086U Intelligent motor protecting breaker |
01/09/2013 | CN202663085U Protecting and monitoring system for motor |
01/09/2013 | CN202662259U Solar multifunctional media machine |
01/09/2013 | CN202653894U Rapid protection circuit of pressure cooker |
01/09/2013 | CN102870305A Protection circuit, battery control device, and battery pack |
01/09/2013 | CN102869148A Led driving circuit with open-circuit protection |
01/09/2013 | CN102868333A Liquid soft starter for high-voltage motor |
01/09/2013 | CN102868332A Star delta closed type change-over starting device protected by microcomputer |
01/09/2013 | CN102868329A Medium-voltage motor soft start device in water chilling unit |
01/09/2013 | CN102868237A Circuit for improving energy transmission efficiency of non-contact type IC (integrated circuit) card |
01/09/2013 | CN102868234A Non-contact power feeding apparatus |
01/09/2013 | CN102868225A Microcomputer relay protection device based on DSP (digital signal processor) |
01/09/2013 | CN102868219A Intelligent electric carrier classification locking device |
01/09/2013 | CN102868199A Battery pack balance method, battery pack balance device and system including device |
01/09/2013 | CN102868152A Self-adapting voltage quick-break protection method of distribution circuit |
01/09/2013 | CN102868151A Power distribution line self-adaptive current quick-breaking protection method based on matrix pencil |
01/09/2013 | CN102868150A Full-current differential protection braking coefficient adaptive regulating method for transmission line |
01/09/2013 | CN102868149A Short circuit protection module and protection method for insulated gate bipolar transistor (IGBT) module |
01/09/2013 | CN102868148A Intelligent breaker for solar cell component string and protecting method |
01/09/2013 | CN102868147A Voltage-sharing detection protector for serially connected capacitors |
01/09/2013 | CN102868146A Protection circuit used for power supply converter |
01/09/2013 | CN102868145A Lightning-proof equipment of micro-inverter |
01/09/2013 | CN102868144A Ground fault protecting circuit of photovoltaic inverter |
01/09/2013 | CN102868143A Overcurrent protection circuit of push-pull converter |
01/09/2013 | CN102868142A Topological structure for operation of short circuit impact generator |
01/09/2013 | CN102868141A Over-temperature protection circuit structure for transformer |
01/09/2013 | CN102868140A Overload alarming device for power transformer |
01/09/2013 | CN102868137A Method and device for controlling ultrahigh-voltage transmission line single-phase automatic reclosing |
01/09/2013 | CN102142710B Adaptive storage battery charging device capable of selecting capacity |
01/09/2013 | CN102006007B Motor control system of electric automobile |
01/09/2013 | CN101872964B Wide area measurement system based back-up protection method of multi-terminal high-voltage power transmission area |
01/08/2013 | US8351226 Rectifier circuit, semiconductor device using the rectifier circuit, and driving method thereof |
01/08/2013 | US8351171 Integrated automatic selection of maintenance mode in electronic tripping systems to minimize arc fault energy |
01/08/2013 | US8351169 System and method for preventing, protecting OLTC from fire and/or transformer from explosion |
01/08/2013 | US8351168 Open circuit detector and method therefore |
01/08/2013 | US8350518 Control apparatus for matrix converter |
01/08/2013 | CA2731552C Assembly of actuators and of a system for supplying electrical power from a network |
01/08/2013 | CA2677330C Fuse saving power distribution system fault protection |
01/03/2013 | WO2013002016A1 Power conversion device |
01/03/2013 | WO2013001236A2 System for protecting against heating for a rotating electric machine, in particular a starter |
01/03/2013 | WO2013001066A1 Device for protecting against a short-circuit fault in an electrical network |
01/03/2013 | WO2013000608A1 A tap changer and a method of operating a tap changer |
01/03/2013 | WO2012045666A3 Method and device to protect an esp power supply from transient over-voltages on the power grid |
01/03/2013 | US20130003429 Power conversion device |
01/03/2013 | US20130003238 System and method for automated fault control and restoration of smart grids |
01/03/2013 | US20130003232 Vehicle steering system |
01/03/2013 | US20130003231 Overvoltage prevention in an aircraft electrical power generation system |
01/03/2013 | US20130002017 Car battery system |
01/03/2013 | DE102012105502A1 Steuersystem für ein elektrisches Energieversorgungssystem A control system for an electric power supply system |
01/03/2013 | DE102011078551A1 Feed overload protection device for connecting feed device to electric load circuit in e.g. multi-family house, has detection unit to determine magnitude of current and reduce current flow in line when exceeding threshold value |
01/03/2013 | DE102011078239A1 Rücksetzen eines Störlichtbogenschutzgeräts Resetting a Störlichtbogenschutzgeräts |
01/03/2013 | DE102011003518B4 Verfahren zum Schutz eines Ladekabels und Ladeeinrichtung A method of protecting a charging cable and charger |
01/03/2013 | DE102005028559B4 Verfahren und Vorrichtung zur Drehzahlüberwachung eines Elektromotors Method and apparatus for monitoring speed of an electric motor |
01/02/2013 | EP2541717A2 System and method for automated fault control and restoration of smart grids |
01/02/2013 | EP2541715A1 Dc power supply insulation fault detection circuit |
01/02/2013 | EP2541572A1 Method and apparatus for monitoring of a tap changer |
01/02/2013 | EP2541349A2 Inverter system having a safety module |
01/02/2013 | EP2540952A2 Monitoring device for weight balancing device and building closure comprising same and door drive |
01/02/2013 | EP2539993A2 Electric motor for driving a motor vehicle component |
01/02/2013 | CN202652602U Solar LED lighting system |
01/02/2013 | CN202652601U Remote-control-type emergency light |
01/02/2013 | CN202652085U Watt offline flyback insulation type multi-output power supply |
01/02/2013 | CN202651862U Intelligent electronic storage battery charger |
01/02/2013 | CN202651840U Solar energy electricity using system |
01/02/2013 | CN202651782U Circuit capable of bearing high direct current and possessing reverse connection protection function |
01/02/2013 | CN202651781U Neutral point integrated grounding complete device |
01/02/2013 | CN202651777U Microcomputer-based line protection monitoring device |
01/02/2013 | CN202651776U Relay protection error-collision prevention device |
01/02/2013 | CN202651775U Parameter setting device for coal mine power center protective circuit |
01/02/2013 | CN202651774U Under-voltage protection circuit in LED drive chip |
01/02/2013 | CN202651773U Overvoltage protection device of direct current adapter |