| 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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| 01/02/2013 | CN202651772U Power unit bypass circuit |
| 01/02/2013 | CN202651771U Delayed resistor element with temperature protection function |
| 01/02/2013 | CN202651770U Motor phase loss protection circuit |
| 01/02/2013 | CN202651769U Automatic protection switch of phase loss |
| 01/02/2013 | CN202651768U Phase lack detection and protection system for three-phase motors |
| 01/02/2013 | CN202651767U Three-phase asynchronous motor control circuit |
| 01/02/2013 | CN202651766U Single-phase motor protective device |
| 01/02/2013 | CN202651765U Anchor winch motor overload protection device |
| 01/02/2013 | CN202651764U Asynchronous motor protector |
| 01/02/2013 | CN202651763U Motor over heating protection device |
| 01/02/2013 | CN202651762U Underload protection circuit inactive on startup |
| 01/02/2013 | CN202651761U Low voltage motor protector with dual-path communication function |
| 01/02/2013 | CN202651760U Low voltage motor protector with leakage lockout function |
| 01/02/2013 | CN202651759U Low voltage motor protector with digital maloperation preventing function |
| 01/02/2013 | CN202651758U Three-phase asynchronous alternating current motor protection circuit |
| 01/02/2013 | CN202651304U Online desulphuration instrument using high frequency harmonic pulse oscillation |
| 01/02/2013 | CN102858669A 安全电路 Safety circuit |
| 01/02/2013 | CN102857152A Electromagnetic starter and detection method thereof |
| 01/02/2013 | CN102857105A Switch power source circuit and corresponding switch power source device |
| 01/02/2013 | CN102856981A Station-area protection and control device with protection and control functions in converting station |
| 01/02/2013 | CN102856891A Self-adapting zero sequence current protection method of feeder line |
| 01/02/2013 | CN102856890A Adaptive current differential protection method applied to high-compensation-degree series compensation system |
| 01/02/2013 | CN102856889A Self-restoring type over/under-voltage protection device |
| 01/02/2013 | CN102856888A Feed overload protection device and device used for current monitoring |
| 01/02/2013 | CN102856887A Resetting of disturbance arc protection device |
| 01/02/2013 | CN102856886A Electromobile battery protecting circuit |
| 01/02/2013 | CN102856885A Dynamic lithium ion protective plate large current switch group circuit |
| 01/02/2013 | CN102856884A Heat accumulation based frequency converter overload method |
| 01/02/2013 | CN102856883A Mixing machine and protective device and protection method of same |
| 01/02/2013 | CN102856882A Motor locked rotor protection circuit and protection method thereof |
| 01/02/2013 | CN102856881A Full-bridge MMC (multi-media card)-HVDC (high-voltage direct current) fault classification detection and protection method |
| 01/02/2013 | CN102856880A Power supply overvoltage protecting circuit |
| 01/02/2013 | CN102856796A Novel switch cabinet |
| 01/02/2013 | CN102855382A Method for resolving three-phase short-circuit fault critical clearing time (CCT) of power system on line |
| 01/02/2013 | CN102263544B IGBT driving circuit with electrification protection |
| 01/02/2013 | CN101908754B High-voltage isolation protective circuit |
| 01/02/2013 | CN101895102B Centralized and integrated application method of relay protection setting calculation |
| 01/02/2013 | CN101860016B Protection and control method of battery system of plug-in electromobile |
| 01/02/2013 | CN101854051B Hot plug device of high-voltage DC UPS |
| 01/02/2013 | CN101783584B Inversion three-level wave-chasing current limiting circuit and wave-chasing current limiting method thereof |
| 01/02/2013 | CN101777846B System and method for controlling switch power supply |
| 01/02/2013 | CN101777759B Complete set of protection devices for ultrahigh-speed DC line on basis of single-ended transient signals and protection method thereof |
| 01/02/2013 | CN101741294B Motor protector dual-machine linkage method and linkage device |
| 01/02/2013 | CN101707432B Electric power switching device and abnormal test method thereof |
| 01/02/2013 | CN101641848B Method for the automatic adjustment of a protective device having an excess-current release, particularly a low-voltage circuit breaker |
| 01/02/2013 | CN101630674B Circuit protection device including resistor and fuse element |
| 01/02/2013 | CN101427435B Device for operating an electric motor |
| 01/02/2013 | CN101394079B Novel frequency conversion power source protecting device |
| 01/02/2013 | CN101277008B Arc flash elimination apparatus and method |
| 01/01/2013 | US8345393 Exterior primary fuse system for transformers |
| 01/01/2013 | US8345392 Quench energy dissipation for superconducting magnets |
| 01/01/2013 | US8344704 Method and apparatus for adjusting the reference impedance of a power generator |
| 01/01/2013 | US8344675 Rechargeable electric power tool |
| 01/01/2013 | US8344555 Control device of power supply circuit |
| 12/27/2012 | WO2012175858A2 System and method for compensating a battery charger installed in a vehicle |
| 12/27/2012 | WO2012174848A1 Dynamic simulation experiment device for researching dynamic characteristic of dc power transmission system |
| 12/27/2012 | WO2012069468A3 Circuit arrangements for electronically controlled dc networks |
| 12/27/2012 | US20120327539 Assembly of electric motor starter components |
| 12/27/2012 | DE19634186B4 Netzgeführte Thyristorbrücke Line-commutated thyristor |
| 12/27/2012 | DE102012002023A1 Method for operating inverter circuit of permanent magnet synchronous electric machine e.g. electric motor, involves operating electric machine in active short-circuit mode, when rotational speed is above threshold value |
| 12/27/2012 | DE102011077967A1 Elektrode und Verfahren zur Stromversorgung eines Reaktors Electrode and method for the power supply of a reactor |
| 12/26/2012 | EP2538513A1 Protection circuit, battery control device, and battery pack |
| 12/26/2012 | EP2537218A1 Supraconductive coil transition detector |
| 12/26/2012 | CN202634313U 逆变器 Inverter |
| 12/26/2012 | CN202634308U Intrinsically safe power supply module for coal mine |
| 12/26/2012 | CN202634304U Energy-saving protecting device of alternating current contactor |
| 12/26/2012 | CN202634297U Novel 18V mine explosion suppression and intrinsic safety power supply based on dual-redundancy protection circuit |
| 12/26/2012 | CN202634049U Control circuit of multi-line power supply system |
| 12/26/2012 | CN202633978U Power supply device |
| 12/26/2012 | CN202633975U Additional device for accelerating charging of electric bicycle |
| 12/26/2012 | CN202633945U Electrical anti-interference loop |
| 12/26/2012 | CN202633942U AC (alternating-current) distribution system |
| 12/26/2012 | CN202633925U Power-grid inverted-feed protection device |
| 12/26/2012 | CN202633924U Remote optic-fiber signal latch-up protection device |
| 12/26/2012 | CN202633923U Programmable BTZ device for refining power supply system |
| 12/26/2012 | CN202633922U Device for preventing override trip of coal mine power network |
| 12/26/2012 | CN202633921U Arc light protection device |
| 12/26/2012 | CN202633920U Intelligent monitoring system for branch circuit switch |
| 12/26/2012 | CN202633919U Split-type eight-path direct-current differential device |
| 12/26/2012 | CN202633918U MOS pipe over-current self-recovery protection circuit |
| 12/26/2012 | CN202633917U Portable automatic monitoring device for high-capacity battery pack |
| 12/26/2012 | CN202633916U Automobile storage battery protective device |
| 12/26/2012 | CN202633915U Output overvoltage protective circuit for inverter power supply |
| 12/26/2012 | CN202633914U Overvoltage protecting circuit of output electrolytic capacitor of active PFC (Power Factor Correction) circuit and switching power supply |
| 12/26/2012 | CN202633913U Fork lock protection circuit based on insulated gate bipolar transistor (IGBT) half bridge gate drive |
| 12/26/2012 | CN202633912U Rectifier of high-frequency interface in electronic label |
| 12/26/2012 | CN202633911U Frequency converter fault protection automatic reset apparatus |
| 12/26/2012 | CN202633910U Power supply module with overvoltage protection function |
| 12/26/2012 | CN202633909U Novel overheating protection electric roller |
| 12/26/2012 | CN202633908U Pump protector simulation circuit |
| 12/26/2012 | CN202633907U Brushless DC motor open-phase short circuit protective apparatus |
| 12/26/2012 | CN202633906U Electromotor protecting switch |
| 12/26/2012 | CN202633905U Digital motor fire protection device |
| 12/26/2012 | CN202633778U General electric automobile high voltage distribution box |
| 12/26/2012 | CN202633750U High-pressure water pump control cabinet |
| 12/26/2012 | CN202633748U Multifunctional low-voltage distribution cabinet |
| 12/26/2012 | CN202632917U Device combining temperature fuse and resistor |
| 12/26/2012 | CN102844955A Deactivation device for separating electrical energy source from load and circuit system having deactivation device |
| 12/26/2012 | CN102843071A Solar photovoltaic control system |
| 12/26/2012 | CN102843049A Rectifier voltage regulator for motorcycles |