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)
04/2014
04/01/2014US8687326 Short circuit protecting device and method thereof for DC-DC converter with soft-start function
04/01/2014US8686677 Synchonrous oscillating fan system for livestock shelter
04/01/2014US8686676 Trash can with power operated lid
04/01/2014US8686591 Electrically-driven vehicle and charge control system which enable simultaneous performance of driving of an accessory unit and a charging process of a battery
04/01/2014DE202012104973U1 Anordnung zur unterbrechungsfreien Stromversorgung, nämlich Online-USV Arrangement for uninterruptible power supply, namely on-line UPS
04/01/2014CA2528778C Method for increasing the capacity of an installation used to carry out an industrial process
03/2014
03/27/2014WO2014045745A1 Power storage system and battery protection method
03/27/2014WO2014044328A1 Fault identification in an energy supply network with decentralised energy feeding
03/27/2014WO2011146117A3 Low cost rugged portable data storage device and docking station
03/27/2014US20140085947 Off-line power converter and integrated circuit suitable for use in same
03/27/2014DE202013009493U1 Eigensichere elektronische Schaltung ( BG-90 ) zur Ansteuerung einer elektronischen Bremselementeinrichtung. Intrinsically safe electronic circuit (BG-90) for controlling an electronic brake element means.
03/27/2014DE102012217280A1 Trennanordnung für ein Hochspannungsgleichstromnetz Separating arrangement for a high voltage DC power
03/26/2014EP2710726A2 Device for actuating an electronically commutated electric motor
03/26/2014CN203504467U Full-voltage sampling industrial-grade voltage regulator of generator
03/26/2014CN203504465U Continuous caster tension leveler excitation power supply
03/26/2014CN203504447U Constant-current current-limiting type inverter
03/26/2014CN203504434U Simple switching power supply for router
03/26/2014CN203504388U Inner radiation ring and intelligent protection type permanent magnetic coupling
03/26/2014CN203504362U Pumping unit motor with phase failure protection function
03/26/2014CN203504263U Power storage battery charging device
03/26/2014CN203504240U Novel wind and solar hybrid portable power supply
03/26/2014CN203504163U Turn adjusting arc suppression coil automatic tracking compensating controller
03/26/2014CN203504162U Protective device for power supply load loop
03/26/2014CN203504161U Cable branch box
03/26/2014CN203504160U Arc protection system
03/26/2014CN203504159U Electric power microcomputer integrated protective device
03/26/2014CN203504158U Overvoltage/under-voltage/overheating protection circuit
03/26/2014CN203504157U IGBT protection circuit
03/26/2014CN203504156U IGBT temperature protective device
03/26/2014CN203504155U Lithium battery protection module based on module with front communication function
03/26/2014CN203504154U Battery protection switch circuit
03/26/2014CN203504153U Capacitor harmonic resonance overvoltage protector
03/26/2014CN203504152U Inverter protector preventing reverse current and overvoltage
03/26/2014CN203504151U Motor overload controlling device
03/26/2014CN203504150U Motor water flooding protection circuit
03/26/2014CN203504149U Braking circuit for preventing misoperation of transformer protection
03/26/2014CN203504132U Overcurrent protection device for mining mobile transformer station of flame-proof type
03/26/2014CN203502908U Computer switch-on and switch-off current impact resistant circuit
03/26/2014CN203502503U Phase sequence detector for industrial motor
03/26/2014CN203502502U Phase-loss and phase-dislocation judgment circuit of three-phase asynchronous motor
03/26/2014CN103688434A Fault identification and location in a power supply line which is fed from one side
03/26/2014CN103684205A Motor control device
03/26/2014CN103684111A Contactless reversing contactor and electric vehicle
03/26/2014CN103683950A Switching power supply device
03/26/2014CN103683939A Special high-voltage driving power source for intelligent piezoelectric valve positioner
03/26/2014CN103683931A Power supply switching circuit
03/26/2014CN103683893A Software protecting method for start short circuit of off-line inverter
03/26/2014CN103683439A System and method for controlling charge of lithium battery pack
03/26/2014CN103683425A Intelligent maintenance-free power source controlled by unibus
03/26/2014CN103683402A Coal mine equipment power source with protection circuit
03/26/2014CN103683394A Charge protection circuit for storage battery
03/26/2014CN103683266A Rechargeable battery protection circuit
03/26/2014CN103683233A Pilot protection method for automatically adapting power converse of power transmission line
03/26/2014CN103683232A GPRS (General Packet Radio Service) monitoring method, device and system for demarcation load switch
03/26/2014CN103683231A Power distribution network switching station with intelligent switch cabinet
03/26/2014CN103683230A Method and structure for achieving distance protection of power distribution network of power system
03/26/2014CN103683229A Method for protecting power grid wide-area relay based on unit output power and load change influence
03/26/2014CN103683228A Control method of breaker failure protection and automatic reclosing device
03/26/2014CN103683227A Two-section protection stage difference coordination method for alternating current power supply of transformer substation
03/26/2014CN103683226A Method for shortening phase spacing protection overall actuation time
03/26/2014CN103683225A Ground fault protection method of nuclear plant low-voltage power distribution system in all power supply ranges
03/26/2014CN103683224A Protective device for trip acceleration of common-tower lines
03/26/2014CN103683223A Circuit protection system
03/26/2014CN103683222A Electric power system insulation fault removal apparatus
03/26/2014CN103683221A Power distribution systems and methods of operating a power distribution system
03/26/2014CN103683220A Switching device in current distribution system
03/26/2014CN103683219A Lighting protection module
03/26/2014CN103683218A Distributed bus protection device based on HSR
03/26/2014CN103683217A Fault positioning protecting device and method based on power distribution network smart terminal
03/26/2014CN103683216A Busbar differential protection method
03/26/2014CN103683215A Short-circuit protection circuit of electronic switch
03/26/2014CN103683214A High-voltage circuit breaker longevity protection device
03/26/2014CN103683213A High-reliability protective circuit
03/26/2014CN103683212A Storage battery with long service time
03/26/2014CN103683211A Battery protection circuit and battery pack including the same
03/26/2014CN103683210A Charge/discharge protection circuit and explosion-proof lamp using same
03/26/2014CN103683209A Identifying method based on high-speed switch type serial compensation system and controller thereof
03/26/2014CN103683208A Protective circuit, power panel, television set and control method of protective circuit
03/26/2014CN103683207A Under-voltage and over-voltage protection circuit for power supply circuit
03/26/2014CN103683206A Input overvoltage and undervoltage protection circuit with high-voltage startup function and input overvoltage and undervoltage protection method
03/26/2014CN103683205A Circuit arrangement for connection to an electrical circuit and electrical circuit
03/26/2014CN103683204A Switching power supply over-current protection circuit
03/26/2014CN103683203A Overheating protection for switch power converter
03/26/2014CN103683202A Device and method for detecting output earth short circuit condition of frequency converter
03/26/2014CN103683201A Method for distributing current and switch device for implementing method
03/26/2014CN103683200A Relay protection method for dead-zone faults of voltage transformers on basis of starting at switching positions and sealed current transformers TA
03/26/2014CN103683199A Relay protection method for dead-zone faults of voltage transformers on basis of starting at switching positions
03/26/2014CN103683198A Excitation surge current fast identification method based on planar adjacent point distances formed by differential current adjacent order difference
03/26/2014CN103683197A Method of calculating delta-side three-phase winding primary current of Y/delta transformer
03/26/2014CN103683196A A transformer excitation surge current discriminating method based on multi-factional spectrums
03/26/2014CN103683195A Frequency-conversion differential protection method for output transformer of SFC system
03/26/2014CN103683194A Transformer neutral point direct current suppression device
03/26/2014CN103683193A Transformer microcomputer protection device for automatic constant value setting
03/26/2014CN103683192A Large-capacity phase shift rectification transformer excitation inrush current suppression apparatus and method
03/26/2014CN103683182A Circuit arrangement used for electric protective device
03/26/2014CN103682234A Battery pack with independent cutoff protection
03/26/2014CN103681038A Split switch, splittable power battery set and running method of split switch
03/26/2014CN103675415A Excitation surge current detection method, excitation surge current brake method and excitation surge current detection device
03/26/2014CN103669252A Automatic gate
03/26/2014CN103663157A Crane motor reversing contactless dustproof wireless receiver and control system thereof
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