| 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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| 11/05/2013 | US8576527 Apparatus, system, and method for creating one or more slow-speed communications channels utilizing a real-time communication channel |
| 10/31/2013 | WO2013163266A1 Power conversion system with open- circuit fault detection and method thereof |
| 10/31/2013 | WO2013162493A1 Battery field disconnect method |
| 10/31/2013 | WO2013159557A1 Novel solid-state relay for running direction control of three-phase alternating current motor and method thereof |
| 10/31/2013 | WO2013159488A1 Massager and method for dealing with motor blockage thereof |
| 10/31/2013 | US20130286696 Methods, Systems, and Software For Controlling a Power Converter During Low (Zero)-Voltage Ride-through Conditions |
| 10/31/2013 | US20130286515 Fault Protection for Aircraft Power Systems |
| 10/31/2013 | US20130286514 Power conversion apparatus |
| 10/31/2013 | US20130286513 Subtransient Current Suppression |
| 10/31/2013 | DE102012207221A1 Retrofit lamp, has drive circuit does not activating two-pole relay such that drive circuit decouple LEDs of circuit device from output when voltage at input of circuit device exceeds predetermined threshold value |
| 10/31/2013 | DE102005059603B4 Vorrichtung zum Treiben eines bürstenlosen Gleichstrommotors An apparatus for driving a brushless DC motor |
| 10/30/2013 | EP2658065A1 Method for improving power distribution protection |
| 10/30/2013 | EP2658064A1 Power supply system, vehicle mounted therewith, and method of controlling power storage apparatus |
| 10/30/2013 | EP2658063A2 Subtransient current suppression |
| 10/30/2013 | EP2656466A1 Method and device for controlling an adjusting device of a motor vehicle |
| 10/30/2013 | CN203261251U Motorcycle voltage-stabilizing rectifier with temperature protection function |
| 10/30/2013 | CN203261016U Traction power supply system for thyristor rectification |
| 10/30/2013 | CN203261015U One-hundred-percent rapid protection system for internal fault of switch cabinet |
| 10/30/2013 | CN203261014U Lithium battery protection board |
| 10/30/2013 | CN203261013U Lithium-battery protection chip circuit based on PTC (Positive Temperature Coefficient) elements |
| 10/30/2013 | CN203261012U Protective device and protective system for battery disconnection |
| 10/30/2013 | CN203261011U Over-current protective device used for power MOSFET in inverter circuit |
| 10/30/2013 | CN203261010U Output overvoltage protection circuit for LED display-screen switch power supply |
| 10/30/2013 | CN203261009U Generator protective device with wearing state detection function |
| 10/30/2013 | CN203261008U Inverter air conditioner load protection circuit |
| 10/30/2013 | CN203261006U Protective chip circuit of lithium battery |
| 10/30/2013 | CN203261002U PFC under-voltage protection circuit |
| 10/30/2013 | CN203260996U Marine multifunctional protection apparatus |
| 10/30/2013 | CN203260906U Adjusting type low-voltage integrated distribution cabinet |
| 10/30/2013 | CN103378779A Temperature control device of brushless DC motor |
| 10/30/2013 | CN103378769A Power saving controller for motor |
| 10/30/2013 | CN103378725A A controller with a multifunctional pin and a conversion controller |
| 10/30/2013 | CN103378720A Compressor capacity charge control device and method and compressor |
| 10/30/2013 | CN103378586A Digital protection relay |
| 10/30/2013 | CN103378585A Fault protection system for a power system of dynamically positioned vessel |
| 10/30/2013 | CN103378584A Fault protection system for a power system of dynamically positioned vessel |
| 10/30/2013 | CN103378583A Feeder automation technical scheme based on intelligent rapid vacuum circuit breaker |
| 10/30/2013 | CN103378582A Overload protection device of motor of anchor winch |
| 10/30/2013 | CN102570617B Method for realizing wide area protection system among multiple substations |
| 10/30/2013 | CN102306936B Magnetron reactor capable of adjusting starting point |
| 10/30/2013 | CN102255391B Feeder automation system with on-line protective fixed value setting function |
| 10/30/2013 | CN102255294B Voltage acceleration inverse time-delay over-current protection method used for micro power grid |
| 10/30/2013 | CN102013668B Method for implementing overload inverse-time protection of alternating-current motor |
| 10/30/2013 | CN101981776B System and method for ground fault detection and interruption |
| 10/30/2013 | CN101447666B Power supply system and power overvoltage safety protection control method |
| 10/29/2013 | US8570780 Semiconductor device |
| 10/29/2013 | US8570779 Method for limiting damage to a converter having power semiconductors in the case of a short circuit in the DC voltage intermediate circuit |
| 10/29/2013 | US8570775 CMV reduction under bus transient condition |
| 10/29/2013 | US8570771 Systems and methods of primary-side sensing and regulation for flyback power converter with high stability |
| 10/29/2013 | US8570692 Overvoltage protection for inverters that comprise an EMC filter at their input end |
| 10/29/2013 | US8570003 Double fed induction generator converter and method for suppressing transient in deactivation of crowbar circuit for grid fault ridethrough |
| 10/29/2013 | CA2790020C Battery and electric apparatus assembly and battery for powering the apparatus, having magnetically controlled studs |
| 10/29/2013 | CA2790017C Assembly including an electric apparatus and a power supply battery sharing an oscillating circuit |
| 10/26/2013 | CA2814107A1 Link disconnect box for an electrical distribution network protector |
| 10/24/2013 | WO2013158117A1 Overvoltage protection systems and method |
| 10/24/2013 | WO2013087150A3 Method and apparatus for controlling an electric motor on the basis of temperature |
| 10/24/2013 | US20130279220 Switching control circuit with signal process to accommodate the synchronous rectifier of power converters |
| 10/24/2013 | US20130279219 Power circuit |
| 10/24/2013 | US20130279048 Method and an apparatus for supervision of current transformer in a differential protection system |
| 10/24/2013 | US20130277138 Motor drive apparatus |
| 10/24/2013 | DE102013103623A1 Motorsteuervorrichtung The motor control apparatus |
| 10/24/2013 | DE102012223045A1 Motorantriebssteuervorrichtung Motor drive control device |
| 10/24/2013 | DE102012103584A1 Elektrische Schaltungsanordnung Electrical circuitry |
| 10/24/2013 | DE10148740B4 Verfahren zur Erdschlussüberwachung eines Stromrichterantriebs A method for ground fault monitoring of a converter drive |
| 10/23/2013 | EP2654190A2 Method for operating an electric circuit |
| 10/23/2013 | EP2654157A1 Fault protection system for a power system of dynamically positioned vessel |
| 10/23/2013 | EP2654156A1 Fault protection system for a power system of dynamically positioned vessel |
| 10/23/2013 | EP2654155A2 Power converter, and method for operating a power converter |
| 10/23/2013 | EP2654154A2 Power management and distribution system having a fault detection and isolation assembly and method |
| 10/23/2013 | CN203251270U Motor control device carrying out motor protection against overheat according to presumptive temperature |
| 10/23/2013 | CN203251101U Mobile power supply |
| 10/23/2013 | CN203251083U Controllable switch-containing arc-extinguishing apparatus |
| 10/23/2013 | CN203251082U Power loss tripping device applied to latch type contactor |
| 10/23/2013 | CN203251081U Protector for electrical switch switching-on and trip-out mechanism |
| 10/23/2013 | CN203251080U Power supply device with avoidance of excessive discharge of battery module |
| 10/23/2013 | CN203251079U Two-wire type three-phase alternating-current motor protector |
| 10/23/2013 | CN203251078U Motor overcurrent protection circuit and motor driving device |
| 10/23/2013 | CN203251077U Rotor one-point grounding protection circuit for generator protection apparatus |
| 10/23/2013 | CN203251076U Anti-PID circuit and monitoring device thereof |
| 10/23/2013 | CN203251074U Three-phase load multifunctional protector |
| 10/23/2013 | CN103368499A Motor control device performing motor protection against overheat through presumed temperature |
| 10/23/2013 | CN103368217A Charging management system applied to lithium ion battery and lithium ion battery pack |
| 10/23/2013 | CN103368154A Different-phase two-point grounding short circuit selective tripping decision making device of ungrounded grounding system |
| 10/23/2013 | CN103368153A Accelerated factor-based power transmission line negative sequence current protective method |
| 10/23/2013 | CN103368152A Power transmission line single phase high-resistance grounding fault current protective method |
| 10/23/2013 | CN103368151A Method of realizing line-to-ground fault phase selection by using sequence voltage phase characteristic |
| 10/23/2013 | CN103368150A Three-phase power switching interlocking protection circuit |
| 10/23/2013 | CN103368149A Low-voltage power distribution system fault monitoring method |
| 10/23/2013 | CN103368148A Protection system suitable for power electronic equipment simulation |
| 10/23/2013 | CN103368147A Battery pack charging protection device |
| 10/23/2013 | CN103368146A Semiconductor device |
| 10/23/2013 | CN103368145A Relay welding detector of battery system and battery system which uses detector |
| 10/23/2013 | CN103368144A Overvoltage protection circuit |
| 10/23/2013 | CN103368143A Overpower protection circuit for current-type switching power supply |
| 10/23/2013 | CN103368142A Direct-current motor stalling protection circuit and search light |
| 10/23/2013 | CN103368141A Method of measurement for detecting a fault of a three-phase zone |
| 10/23/2013 | CN103368140A Network-sampling-based proportional braking coefficient variable digital transformer protection device |
| 10/23/2013 | CN103368139A 变压器保护电路 Transformer protection circuit |
| 10/23/2013 | CN103368138A Transformer station integrated-protection device based on ARM microcontroller |
| 10/23/2013 | CN103368137A Multi-terminal self-repairing data synchronization differential protection method based on network self-repairing |