| 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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| 07/03/2013 | CN102035181B Overcurrent and overvoltage protection circuit in switch power supply |
| 07/02/2013 | US8477517 Contact-input arrangement for power system devices |
| 07/02/2013 | US8477465 Earth leakage detection method |
| 07/02/2013 | US8477463 Vibration based user input for mobile devices |
| 07/02/2013 | US8476979 High-efficiency power module |
| 07/02/2013 | US8476853 Redundant overspeed protection for power tools |
| 07/02/2013 | US8476849 Multisensory control of a patient-lifting-device |
| 07/02/2013 | US8476790 Control device of power supply circuit |
| 06/27/2013 | WO2013095718A1 Traction motor drive system for a locomotive |
| 06/27/2013 | WO2013094565A1 Protective element, protective element fabrication method, and battery module in which protective element is embedded |
| 06/27/2013 | WO2013093814A2 Overload detection device |
| 06/27/2013 | WO2013093066A1 Hybrid dc circuit breaking device |
| 06/27/2013 | WO2013092142A1 Circuit arrangement for suppressing an arc occurring over a contact gap of a switching member |
| 06/27/2013 | WO2013092045A1 Method for protecting an intermediate circuit capacitor in a power converter circuit |
| 06/27/2013 | WO2013091834A1 Low-, medium-, or high-voltage switchgear |
| 06/27/2013 | WO2013091277A1 Iec61850-based synchronization performance test method for digital relay protection device |
| 06/27/2013 | WO2012101613A3 A switch arrangement |
| 06/27/2013 | US20130163125 Magnetizing inrush current suppression apparatus |
| 06/27/2013 | DE102011122363A1 Elektrische Ansteuerung für Elektromagnete Electrical control for electromagnets |
| 06/27/2013 | DE102011121934A1 Schutzschaltung für einen Akkupack Protection circuit for a battery pack |
| 06/26/2013 | EP2608399A2 Method for ground fault detection during operation of a converter |
| 06/26/2013 | EP2608348A2 Debalancing protection circuit for a battery pack |
| 06/26/2013 | EP2608345A1 Low-, medium-, or high-voltage switchgear |
| 06/26/2013 | EP2608344A1 Method for protecting an intermediate circuit condenser in a frequency converter circuit |
| 06/26/2013 | EP2608342A1 Overvoltage Protection System and Method |
| 06/26/2013 | EP2608341A1 Grounding device |
| 06/26/2013 | EP2608340A1 Multi-directional electrical power protection system |
| 06/26/2013 | CN203027186U Three-phase motor integration controller |
| 06/26/2013 | CN203027163U High-voltage pulse power supply |
| 06/26/2013 | CN203027151U Frequency converter |
| 06/26/2013 | CN203027150U Full-automatic compensation type electric voltage-stabilized power source |
| 06/26/2013 | CN203027136U 直流插座 DC socket |
| 06/26/2013 | CN203027126U Protection circuit for preventing output end alternating-current voltage misconnection, and alternating-current/direct-current conversion apparatus |
| 06/26/2013 | CN203026984U Charging circuit of battery |
| 06/26/2013 | CN203026926U Ethernet-based current differential protective device |
| 06/26/2013 | CN203026925U Photovoltaic power station low voltage ride through operation compatible type rapid contact line failure isolation device |
| 06/26/2013 | CN203026924U 负荷开关控制器 Load Switch Controllers |
| 06/26/2013 | CN203026923U Storage battery control circuit |
| 06/26/2013 | CN203026922U Automatic undervoltage power-off switch of electric torch |
| 06/26/2013 | CN203026921U Detection circuit for imbalance of parallel output current of inverters |
| 06/26/2013 | CN203026920U Short-circuit protection circuit |
| 06/26/2013 | CN203026919U Input under-voltage protection circuit of photovoltaic inverter power supply |
| 06/26/2013 | CN203026918U Input over-voltage protection circuit of smart grid terminal power supply |
| 06/26/2013 | CN203026917U Low voltage frequency converter with short circuit protection function |
| 06/26/2013 | CN203026916U Demagnetization-preventing protection device of compressor |
| 06/26/2013 | CN203026915U Intelligent type low-voltage motor protector |
| 06/26/2013 | CN203026914U Overvoltage controller for brushless excitation generator |
| 06/26/2013 | CN103181054A Apparatus, method and user device for power supply |
| 06/26/2013 | CN103181048A Voltage balancing of symmetric hvdc monopole transmission lines after earth faults |
| 06/26/2013 | CN103178743A Double-boosting high-voltage pulse power supply |
| 06/26/2013 | CN103178660A Driving motor with easily maintained temperature sensor and over-temperature protection method for driving motor |
| 06/26/2013 | CN103178606A Standby power for down-hole emergency refuge facility |
| 06/26/2013 | CN103178588A Mining gas pipeline uninterruptible direct current power supply |
| 06/26/2013 | CN103178587A Magnetizing power source for magnetic defect detector |
| 06/26/2013 | CN103178571A Battery parallel and protective device of electric vehicle |
| 06/26/2013 | CN103178564A Protection device used for multiple batteries |
| 06/26/2013 | CN103178508A Pilot protection method of VSC-HVDC (Voltage Source Converter-High Voltage Direct Current) power transmission circuit based on shunt capacitance parameter identification |
| 06/26/2013 | CN103178507A Transmission line self-adaptive single-end transient protection based on transition resistance and fault angle reductions |
| 06/26/2013 | CN103178506A Ground protection method improving transverse selectivity of coal mine 6-10kV power grid |
| 06/26/2013 | CN103178505A Short-circuit prevention control method, device and module for high-voltage perimeter precaution power grid |
| 06/26/2013 | CN103178504A Relay protection method for electric transmission line single-phase earth faults |
| 06/26/2013 | CN103178503A Centralized processing mode for feeder line fault of distribution network |
| 06/26/2013 | CN103178502A Single-phase grounding protection method for generator set main transformer bus on low voltage side |
| 06/26/2013 | CN103178501A Multifunctional intelligent protection measurement and control system for switch cabinet |
| 06/26/2013 | CN103178500A Overvoltage protection circuit and overvoltage protection method of terminal VCHG pin |
| 06/26/2013 | CN103178499A Rechargeable battery protection circuit with zero-volt recharge function |
| 06/26/2013 | CN103178498A Overvoltage protection system and method |
| 06/26/2013 | CN103178497A Intelligent digital controller for mine rectifier cabinet |
| 06/26/2013 | CN103178496A Overload short-circuit control device for traction rectifying device |
| 06/26/2013 | CN103178495A Overcurrent protection device for medium-frequency asynchronous motors |
| 06/26/2013 | CN103178494A Self-checking device of motor short circuit and application method thereof |
| 06/26/2013 | CN103178489A Regulator transient over-voltage protection |
| 06/26/2013 | CN103177860A Stereoscopic rolling iron core intelligent transformer |
| 06/26/2013 | CN102324918B IGBT (insulated gate bipolar transistor) drive circuit |
| 06/26/2013 | CN102291027B Inverter |
| 06/26/2013 | CN101950950B Self-checking protective device of motor before starting |
| 06/25/2013 | US8472217 Switching mode power supply with a multi-mode controller |
| 06/25/2013 | US8472216 Circuit arrangement and control circuit for a power-supply unit, computer power-supply unit and method for switching a power-supply unit |
| 06/25/2013 | US8472152 Receptacle with arc protection circuitry |
| 06/25/2013 | US8471413 Control device of power supply circuit |
| 06/25/2013 | CA2445152C Monitoring apparatus |
| 06/20/2013 | WO2013089288A1 System for prevention of and protection against fire due to fuse misuse |
| 06/20/2013 | WO2013087625A1 Apparatus for driving a switching device in a safety-oriented manner via an as-i system |
| 06/20/2013 | WO2013086944A1 High-voltage direct-current power-transmission whole-line speed protection method by using direct-current filter current |
| 06/20/2013 | US20130155734 Method and system for islanding detection and protection |
| 06/20/2013 | US20130155733 Generating a fast reset-signal using a fault-protection latch |
| 06/20/2013 | DE102011121599A1 Device for guard of electromotor for electromechanical steering system, compares actual value of rotational speed of motor with threshold value, for switching motor independently of current when actual value is lower than threshold |
| 06/20/2013 | DE102011089316A1 Steuervorrichtung für Halbleiterschalter eines Wechselrichters und Verfahren zum Ansteuern eines Wechselrichters A control device for the semiconductor switches of an inverter and method for controlling an inverter |
| 06/19/2013 | EP2605354A2 Protection for parallel lines in an electrical energy supply network |
| 06/19/2013 | EP2605353A2 Protection for parallel lines in an electrical energy supply network |
| 06/19/2013 | EP2605352A2 Protection for parallel lines in an electrical energy supply network |
| 06/19/2013 | CN203014722U Three-phase motor forward and backward rotation execution module |
| 06/19/2013 | CN203014694U Bridge-type rectifying circuit |
| 06/19/2013 | CN203014691U power circuit capable of converting AC to DC |
| 06/19/2013 | CN203014681U Power supply control circuit and direct-current wide-range input DC/DC power supply |
| 06/19/2013 | CN203014377U Power grid overvoltage inhibition apparatus |
| 06/19/2013 | CN203014365U Rural network distribution line adaptive protecting device |
| 06/19/2013 | CN203014364U Electrical protective device based on arc light detection |
| 06/19/2013 | CN203014363U Wind power and gas power lock protection device |
| 06/19/2013 | CN203014362U 10 kV inlet wire protection and monitor apparatus |