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)
11/2012
11/21/2012CN202550500U Coal mine power center high-voltage and low-voltage integrated control device
11/21/2012CN202550499U Arc light protection system for middle-low-voltage busbar
11/21/2012CN202550498U Series circuit breaker-free unified power flow controller
11/21/2012CN202550497U Split simplex direct-current differential device
11/21/2012CN202550496U Individual unit DC (Direct Current) stage differential device
11/21/2012CN202550495U Non-contact intelligent press board system
11/21/2012CN202550494U Field-effect tube overvoltage protection circuit
11/21/2012CN202550493U Substation intelligent line protection device
11/21/2012CN202550492U Battery recognition device
11/21/2012CN202550491U Battery over-discharge projection circuit
11/21/2012CN202550490U Low-loss isolating protective circuit for solar battery
11/21/2012CN202550489U Battery protection device
11/21/2012CN202550488U Regulated rectifier with failure indicator
11/21/2012CN202550487U Optocoupler fail-safe circuit of switching power supply
11/21/2012CN202550486U Motor control circuit of paper shredder
11/21/2012CN202550485U Multifunctional intelligent control protection system
11/21/2012CN202550484U Intelligent monitoring and motor protecting device with liquid level control function for electric water pump
11/21/2012CN202550483U Intelligent monitoring and motor protecting device of electric water pump
11/21/2012CN202550482U Protection circuit of motor in meter lathe
11/21/2012CN202550481U Abnormal voltage protection and display circuit and constant speed air conditioner
11/21/2012CN202550296U Electrical wiring device used for power distribution system
11/21/2012CN202549602U Current transformer for motor protection
11/21/2012CN102790574A Control circuit for power generator for hazardous article transport vehicle
11/21/2012CN102790384A Override trip prevention method for supply network
11/21/2012CN102790383A Automatic rapid protection control method of novel feeder
11/21/2012CN102790382A Current limited soft connecting/disconnecting device
11/21/2012CN102790381A Tripping control device for start of switching current of distribution network 10kV switching station
11/21/2012CN102790380A Method suitable for intelligent electronic circuit breaker adopting inverter power supply as power supply
11/21/2012CN102790379A Novel fault protection self-repairing circuit
11/21/2012CN102790378A Intelligent motor protector and protection method thereof
11/21/2012CN102790377A Safety device and motor
11/21/2012CN102790360A Low-voltage complete switch equipment and control method thereof
11/21/2012CN102064613B Fault locking method for relay protection in digital substation
11/21/2012CN101938116B Relay protection method and device
11/21/2012CN101916978B Uninterrupted power supply (UPS) power-off controller for logging unit in emergency state
11/21/2012CN101867170B Fibre channel protector test method for simulating system failure and channel abnormal simultaneously
11/21/2012CN101783640B Motor speed closed loop control method
11/21/2012CN101741068B Synchronous sampling method for optical fiber longitudinal differential protection between digital transformer station and traditional transformer station
11/21/2012CN101604851B Monitoring system and method of storage battery LVD value
11/21/2012CN101593974B Compound overvoltage protection device and application thereof in semiconductor convertor equipment
11/21/2012CN101515714B Kickback voltage suppression circuit
11/20/2012US8315072 Controller for switching power supply
11/20/2012US8315022 Integral current transformer shunt resistor
11/20/2012US8315021 Motor detecting and protecting apparatus and its method
11/20/2012US8314586 System for adapting the resonant operation of a personal care appliance during the lifetime thereof
11/20/2012US8314575 Method and device for determining a drive force produced by an electric motor
11/15/2012WO2012152304A1 Method and protective device for recognising a symmetrical short-circuit in a multi-phase electrical power supply network
11/15/2012WO2011061215A3 Vibration energy harvester for converting mechanical vibrational energy into electrical energy
11/15/2012US20120286709 Motor with circuits for protecting motor from input power outages or surges
11/15/2012US20120285086 Collision monitoring system
11/15/2012DE102011101530A1 Method for operating loading device of vehicle e.g. electric vehicle, involves decoupling loading device from power supply system by comparing determined loop impedance with predetermined impedance threshold value
11/15/2012DE102011075846A1 Device for monitoring of charging device for e.g. lithium ion battery of electric vehicle, has control device supplying microprocessor with power supply voltage and resetting microprocessor when integrity of microprocessor is not ensured
11/15/2012DE102011075567A1 Switch i.e. low-voltage power switch, for protecting electrical switchgear against e.g. overload in electrical grid, has microcontroller for triggering disconnection of switching contacts when current value of switch exceeds threshold value
11/14/2012EP2523327A1 Frequency inverter with excess voltage protection and method for operating same
11/14/2012EP2523295A1 Frequency inverter with excess voltage protection for an emergency shutdown and method for operating the same
11/14/2012EP2523293A1 Circuit for protection against an overcurrent
11/14/2012EP2523292A1 A method and a system for protecting a power transformer against voltage surges while the circuit breaker is opening
11/14/2012CN202535580U Solar energy timed light circuit with electric quantity control
11/14/2012CN202535302U 无刷直流电机驱动器 Brushless DC motor drive
11/14/2012CN202535285U Rectifier silicon bridge
11/14/2012CN202535052U Neutral point grounding system via combination of reactance and resistor
11/14/2012CN202535050U Combined type grounding system for reactance and resistor in power distribution network
11/14/2012CN202535048U Fast switching system
11/14/2012CN202535047U Microcomputer-based protection and control system for remote control of switching-on/off operation of reclosing
11/14/2012CN202535046U Microcomputer monitoring and protection device for mine-used high-voltage switch
11/14/2012CN202535045U Charged display locking device
11/14/2012CN202535044U Breaker switching-on and tripping control circuit
11/14/2012CN202535043U Relay contact adhesion detection protective device in industrial remote controller
11/14/2012CN202535042U Trip loop of high-voltage circuit breaker
11/14/2012CN202535041U Short-circuit protecting circuit of high-power photovoltaic inverter
11/14/2012CN202535040U Over-temperature protection circuit used for power device
11/14/2012CN202535039U LED variable-frequency power supply overvoltage protection circuit
11/14/2012CN202535038U Electric-dazzling prevention control circuit for three-phase asynchronous motor
11/14/2012CN202535037U Multifunctional electromechanical controller
11/14/2012CN202535036U Dual-processor integrated type low-voltage motor protection device
11/14/2012CN202535035U Storage battery reverse connection protection device
11/14/2012CN202534945U Power transformation system provided with 0.4-KV low-voltage switches
11/14/2012CN202534942U Wiring form for air cooling low voltage factory
11/14/2012CN102780397A Buck converter circuit
11/14/2012CN102780396A Buck converter circuit
11/14/2012CN102780250A Solar charge controller
11/14/2012CN102780248A Battery pack with intelligent discharge protection function
11/14/2012CN102780216A Surge suppression power supply system and working method thereof
11/14/2012CN102780212A Single-phase grounding traveling-wave protection device for distribution line
11/14/2012CN102780211A Distribution line single-phase grounding traveling wave protection method
11/14/2012CN102780210A Battery pack charging and discharging protector
11/14/2012CN102780209A Storage battery protection device for communication equipment
11/14/2012CN102780208A Short-circuit protection circuit for motor controller
11/14/2012CN102780207A Voltage protection system and voltage protection method
11/14/2012CN102778285A Power source management device of capacitance keyboard of electronic scale
11/14/2012CN102097994B Generator excitation intelligent switch
11/14/2012CN102017030B Method and device for determining the relative humidity of an insulating liquid filled electric apparatus
11/14/2012CN101854057B Novel method for protecting subway 10 kV/35 kV ring network power supply circuit
11/14/2012CN101634469B Portable warmer
11/14/2012CN101558541B Method and device for determining a drive force produced by an electric motor
11/14/2012CN101499648B Semiconductor device for protecting secondary battery, battery pack, and electronic device using same
11/14/2012CN101237144B Relay device and corresponding method
11/14/2012CN101034805B Ic power supply protection circuit
11/13/2012US8310850 Method and apparatus for varying current limit to limit an output power of a power supply
11/13/2012US8310187 Motor drive device
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