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