Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
06/2013
06/12/2013CN202997517U Mine terminal motor safety monitoring device
06/12/2013CN202997516U Motor protection device of magnetic separator
06/12/2013CN202997515U Brushless DC motor fault detection controller
06/12/2013CN202997514U Over-moment protection control device for three-phase electric actuator
06/12/2013CN202997513U Motor protector
06/12/2013CN202997512U Generator main circuit protection unit
06/12/2013CN202997511U Alternating current and direct current injection type rotor one-point-grounding protecting device
06/12/2013CN202997510U Power lightning protection status automatic feedback system
06/12/2013CN202997497U Short-circuit protection circuit based on hall current sensor and digital voltage comparator
06/12/2013CN103155329A Method and system for online ferroresonance detection
06/12/2013CN103155325A Method and device for safely switching a photovoltaic system after differentiating the arc type
06/12/2013CN103151921A DC power step-down transformer circuit
06/12/2013CN103151842A Hierarchical protection control system facing regional power grid
06/12/2013CN103151826A Power supply circuit of sensor network terminal node
06/12/2013CN103151765A Self-adaptive zero-time difference over-current protection method
06/12/2013CN103151764A Electric transmission line one-phase grounding fault full-component voltage protection method
06/12/2013CN103151763A Fault identification and protection method of electrified railway AT traction network
06/12/2013CN103151762A Differential protection method of non-power-cut line replacing operation of by-pass switch
06/12/2013CN103151761A Novel highly-intelligent balanced protection plate
06/12/2013CN103151760A Over-current protection method and protection circuit of motor of electric vehicle
06/12/2013CN103151759A Motor temperature insurance equipment
06/12/2013CN102163878B Method for classifying and realizing integral alarm facing to dispatching running way
06/12/2013CN102035190B Over-current protection circuit
06/12/2013CN102005739B Method for identifying extra-high voltage direct current transmission line area inside and outside fault wavelet energy
06/12/2013CN101923483B Simulated direct-current power transmission control protection system
06/12/2013CN101882860B Insulated gate bipolar translator (IGBT) drive and protection circuit
06/11/2013US8462524 3-level pulse width modulation inverter with snubber circuit
06/11/2013US8462523 Phase angle measurement of a dimming circuit for a switching power supply
06/11/2013US8462475 Multi-terminal power line protection relay system
06/11/2013US8462474 Reclosing system for power transmission line
06/11/2013US8462470 Auto power-off and actuation circuit for a fan
06/11/2013US8461876 Semiconductor device
06/11/2013US8461792 Pulse width modulation fan controller
06/11/2013US8461787 Electrical full bridge circuit configuration
06/06/2013WO2013078851A1 Current-limiting protection method and device for resonance circuit
06/06/2013WO2013078848A1 Terminal charging protection circuit
06/06/2013WO2012146412A3 Method and control device for protection time setting in an electric drive system
06/06/2013WO2012112430A3 Regenerative braking safety system and method of use
06/06/2013US20130141026 Motor with circuits for protecting motor from input power outages or surges
06/06/2013DE19700828C5 Verfahren zum Betrieb einer automatischen Türanlage A method for operating an automatic door system
06/06/2013DE102012022971A1 Motor-Ansteuervorrichtung mit einer Stromausfall-Erfassungseinheit zur Bestimmung des Vorhandenseins oder des Fehlens eines Stromausfalls The motor driver having a power failure detection unit for determining the presence or absence of a power outage
06/06/2013DE102011087488A1 Schaltungsanordnung sowie Verfahren zur Vermeidung von Tiefentladungen eines Energiespeichers in einem Kraftfahrzeug-Bordnetz Circuit arrangement and method for preventing deep discharge of an energy storage in a motor vehicle electrical system
06/06/2013DE102011005563B4 Verfahren und Vorrichtung zur Umschaltung von Stromeinspeisungen Method and apparatus for switching power supplies
06/05/2013EP2600477A1 Mobile terminal
06/05/2013EP2599100A1 Protection system for electric transformer
06/05/2013CN202979359U Solar LED lamp controller
06/05/2013CN202978816U Frequency conversion and speed regulation system by using slip frequency vector to control traction
06/05/2013CN202978782U Motor control device for lead drawing machine
06/05/2013CN202978531U Low voltage fan-cooled explosion-proof type variable-frequency motor
06/05/2013CN202978493U Conical stator winding with thermoswitches for electric hoist motors
06/05/2013CN202978244U Override trip preventing and protecting device
06/05/2013CN202978243U Line transformer protection device with tripping and closing current measuring function
06/05/2013CN202978242U Photoelectric type arc light protection device
06/05/2013CN202978241U Voltage drop suppressor and multi-subcircuit direct current power supply system
06/05/2013CN202978240U Breaker closing circuit protecting device and corresponding breaker closing circuit
06/05/2013CN202978239U IGBT straight-through overcurrent protection circuit
06/05/2013CN202978238U Automatic high- and low-voltage protection circuit for vehicular system
06/05/2013CN202978237U Inverter with load protection
06/05/2013CN202978236U Current limiting protection circuit of AC current of photovoltaic inverter
06/05/2013CN202978235U >Switch power supply high-precision overvoltage protection circuit
06/05/2013CN202978234U Fault-detection protection apparatus for DC high-frequency switch power supply
06/05/2013CN202978233U Direction-current power source protection device
06/05/2013CN202978232U Motor turn-off device control circuit structure for realizing voltage slowly-rising and motor starting functions
06/05/2013CN202978231U Motor turn-off device control circuit structure for realizing function of resisting high-voltage?pulses
06/05/2013CN202978230U Turn-off device control circuit structure for realizing motor protection after failure of single component
06/05/2013CN202978229U Motor controller
06/05/2013CN202978228U Protective device for split type electromotor
06/05/2013CN202978227U Mine-used magnetic starter switch microcomputer monitoring and protecting device
06/05/2013CN202978226U Main-transformer split-type differential protective apparatus
06/05/2013CN202978225U Magnetizing?inrush?current research device for three-phase transformer
06/05/2013CN202978224U Temperature alarm protective device of electrolytic copper powder rectification transformer
06/05/2013CN202978223U Mechanism for controlling action of transformer neutral point gap
06/05/2013CN202978222U High-voltage electric furnace discharge protector
06/05/2013CN202978221U Relay-protection setting simulation apparatus
06/05/2013CN202978212U Practical?grounding?protection circuit
06/05/2013CN202977977U Power distribution cabinet control system
06/05/2013CN202977969U Efficient protection circuit of laser coupling power source
06/05/2013CN103141003A Pilot signal generation circuit
06/05/2013CN103138607A High direct voltage constant current power supply safety protection device with low-voltage protection function
06/05/2013CN103138590A Current-limiting protection method and device of resonance circuit
06/05/2013CN103138540A Converter IGBT gate driving device
06/05/2013CN103138287A Three phase inverter used for solar photovoltaic grid-connected system
06/05/2013CN103138249A Power transformer with functions of lightning protection and energy conservation and a function of preventing people from being hurt by electricity of output power grid
06/05/2013CN103138245A High-integration integrated automation protective device provided with on-line temperature measurement and arc light monitoring
06/05/2013CN103138244A Overheating protection alternating-current power control device
06/05/2013CN103138243A Charging circuit and charging device used for portable lamps
06/05/2013CN103138242A Charging protection structure of multiple output mobile battery charger
06/05/2013CN103138241A Storage battery protective circuit for solar charging station
06/05/2013CN103138240A Backward-flowing current prevention circuit, backward-flowing current prevention method and power supply system
06/05/2013CN103138239A Accident handling method in generator-motor set back-to-back start-up process
06/05/2013CN103138238A Motor control device and motor control method
06/05/2013CN103138237A Method and device used for transformer neutral point protective gap actions
06/05/2013CN103138236A Anti-inductive- thunder transformer
06/05/2013CN103138235A Power transformer no-load automatic power-off device
06/05/2013CN103138234A Reeding machine short circuit self-stopping protection device
06/05/2013CN102200561B Function test platform and method for bus relaying protection device based on real time digital system (RTDS)
06/05/2013CN102200560B Function test platform and method for transformer relaying protection device based on real time digital system (RTDS)
06/05/2013CN102074941B Distributed parameter model circuit-based interphase reactance relay
06/05/2013CN102007681B Drive circuit for a DC motor, comprising an h-bridge and a motor braking circuit
06/05/2013CN101976823B Undervoltage protection circuit for battery
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