| 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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| 12/05/2012 | CN102810843A Protective measuring and monitoring device for box-type transformer of wind driven generator |
| 12/05/2012 | CN102806986A Solar yacht with over-current protection |
| 12/05/2012 | CN102386815B Integrated motor starting and protecting device with improved structure |
| 12/05/2012 | CN102096044B Method for measuring temperature of permanent-magnet synchronous motor of hybrid electric vehicle |
| 12/05/2012 | CN102064611B Transformer substation sequentialization control system with visualization and interactivity |
| 12/05/2012 | CN101924354B Artificially neural network routing method for distribution network failure by using S-transforming energy sampling property |
| 12/05/2012 | CN101895097B Realization method of protecting circuit with converter |
| 12/05/2012 | CN101888109B Storage battery charge control circuit adopting two-way reverse connecting protection |
| 12/05/2012 | CN101814730B Fault phase selection method of double transmission line protection on the same pole |
| 12/05/2012 | CN101788602B Earth leakage tester, earth leakage circuit breaker equipped with the same, circuit breaker, and insulation monitor |
| 12/05/2012 | CN101567556B Over-voltage charge protective device and method used for charging cell phone |
| 12/05/2012 | CN101515758B Device for protecting a speed controller against overcurrent |
| 12/05/2012 | CN101494372B Method for controlling torque signal, temperature estimation controller and electromotor system |
| 12/04/2012 | CA2444159C Arc fault detector with circuit interrupter |
| 11/29/2012 | WO2012159505A1 Early warning method of leading-phase depth of steam/hydraulic turbine generator |
| 11/29/2012 | US20120299521 Electric motor and method for controlling the same |
| 11/29/2012 | DE102012208632A1 Verfahren und Vorrichtung zum Betrieb eines bürstenlosen Motors Method and apparatus for operation of a brushless motor |
| 11/29/2012 | DE102012208631A1 Verfahren und Vorrichtung zum Betrieb eines bürstenlosen Motors Method and apparatus for operation of a brushless motor |
| 11/29/2012 | DE102012010083A1 Photovoltaische Sicherheitsabschaltungsvorrichtung Photovoltaic safety shut-off device |
| 11/28/2012 | EP2526645A1 Method and apparatus for control of a commodity distribution system |
| 11/28/2012 | EP2526607A2 Smart battery charging system for electrical generator |
| 11/28/2012 | EP2526602A2 Superconducting fault current-limiter with variable impedance shunt coil |
| 11/28/2012 | EP2526601A1 Electronic overcurrent release for circuit breakers |
| 11/28/2012 | CN202565220U Network intelligent stepper motor driver |
| 11/28/2012 | CN202565213U Novel solid-state relay for controlling operating direction of three-phase AC motor |
| 11/28/2012 | CN202565212U Electric tool provided with short-time on-off protection |
| 11/28/2012 | CN202565185U Single crystal furnace intelligent high-frequency power supply |
| 11/28/2012 | CN202565158U Explosion suppression and intrinsic safety switch power with power factor correction |
| 11/28/2012 | CN202565006U Static zero-power energy-saving charging power supply with charging protection function |
| 11/28/2012 | CN202565005U Plumbic acid cell floating charge circuit |
| 11/28/2012 | CN202565004U Vehicle-mounted power supply intelligent manager |
| 11/28/2012 | CN202564931U Switch-off/switch-on self-hold circuit |
| 11/28/2012 | CN202564930U Direct current operation loop anti-pumping circuit |
| 11/28/2012 | CN202564929U 110 kV parallel double-loop operation line for rapid disconnection |
| 11/28/2012 | CN202564928U Insulated gate bipolar transistor protection circuit |
| 11/28/2012 | CN202564927U High tension switch cabinet trip alarming system |
| 11/28/2012 | CN202564926U Multiple lithium ion battery charging and discharging protection circuit |
| 11/28/2012 | CN202564925U Input overcurrent overvoltage protector used for frequency converter |
| 11/28/2012 | CN202564924U Intelligent relay protection device for motor |
| 11/28/2012 | CN202564923U Automatic power interruption device for high-voltage transformer |
| 11/28/2012 | CN202564922U Non-contact online detecting signal lightning arrester |
| 11/28/2012 | CN202564921U Abnormal protection circuit |
| 11/28/2012 | CN202564846U Environment friendly gas-insulated metal-enclosed switchgear having alarming function |
| 11/28/2012 | CN202564788U High voltage load switch cabinet with over current control |
| 11/28/2012 | CN202564487U Lithium iron phosphate power supply device of mine electric locomotive |
| 11/28/2012 | CN1267927B Protection method, control circuit and battery apparatus |
| 11/28/2012 | CN102802289A Electromagnetic induction heating control circuit based on digital signal processing |
| 11/28/2012 | CN102801350A H-bridge photovoltaic grid-connected inverter |
| 11/28/2012 | CN102801334A Thickened oil electric thermal recovery heating power supply with fault diagnosis and warning functions |
| 11/28/2012 | CN102801310A Direct-current switch power supply circuit |
| 11/28/2012 | CN102801254A Energy-saving motor for hydraulic pump drive |
| 11/28/2012 | CN102801198A Energy storage device |
| 11/28/2012 | CN102801192A Wireless sensor network node solar charging and storage battery discharging protective circuit |
| 11/28/2012 | CN102801184A Battery pack management system |
| 11/28/2012 | CN102801149A Wire inlet protector |
| 11/28/2012 | CN102801145A System electricity-saving appliance |
| 11/28/2012 | CN102801143A Device and method for automatically isolating automatic system line fault in power distribution network |
| 11/28/2012 | CN102801142A Insulated gate bipolar transistor-driven protective circuit |
| 11/28/2012 | CN102801141A Parallel-connection settable hardware protection device for active power filter (APF) |
| 11/28/2012 | CN102801140A Marine high-power AC-DC (alternating current-direct current) converter based on thyristor |
| 11/28/2012 | CN102801139A Redundancy protection circuit of photovoltaic grid-connected inverter and inverter comprising circuit |
| 11/28/2012 | CN102801138A Light-emitting diode (LED) over current protection circuit and light fitting |
| 11/28/2012 | CN102801137A Light-emitting diode (LED) short circuit protection circuit and light fitting |
| 11/28/2012 | CN102297148B Fan control circuit for prolonging service life of direct current carbon brush motor of fan |
| 11/28/2012 | CN101902037B Distributed single-phase earth fault isolation method in low-current earthed system |
| 11/28/2012 | CN101867183B Method for calculating interactive-influenced electricity transmission limit with multiple sections and stable transmission level |
| 11/28/2012 | CN101657945B Flux control system for active voltage conditioning |
| 11/27/2012 | US8320140 Optimizing operation of DC-to-AC power converter |
| 11/27/2012 | US8320088 Power transfer mechanism for use in transmission and distribution level electrical power systems |
| 11/27/2012 | US8319471 Battery power delivery module |
| 11/27/2012 | US8319466 Modular line-to-ground fault identification |
| 11/27/2012 | CA2651807C Battery for a children's ride-on vehicle |
| 11/27/2012 | CA2411238C Circuit breaker for detecting an excessive voltage and tripping responsive thereto |
| 11/22/2012 | WO2012155974A1 Method for generating a fault signal |
| 11/22/2012 | WO2012155337A1 Protection circuit of dc brush motor |
| 11/22/2012 | US20120294428 Power converter, x-ray ct apparatus, and x-ray imaging apparatus |
| 11/22/2012 | US20120294053 Method for protecting a converter and a converter implementing the method |
| 11/22/2012 | US20120293896 Inrush-current suppressing device and inrush-current suppressing method |
| 11/22/2012 | US20120293895 Protection circuit for brushed dc motor |
| 11/22/2012 | US20120293894 Supervision and protection for an electric capstan |
| 11/22/2012 | US20120292989 Control of a converter for an electric vehicle |
| 11/22/2012 | DE102011088996A1 Steuerung eines Konverters für ein Elektrofahrzeug A converter control system for an electric vehicle |
| 11/22/2012 | DE102011082342A1 Switchgear arrangement for distributing current on branches of electrical system, has logic unit including algorithm to recognize arc, and downstream switch whose interruption is triggered by command when arc is recognized |
| 11/22/2012 | DE102011082340A1 Arrangement for power distribution in plant, has electronic trip unit that detects occurrence of electric arcs between different grading levels using algorithm based on detected current and voltage |
| 11/22/2012 | DE102011075869A1 Verfahren und Steuergerät zur Erkennung einer geblockten Elektromaschine in einem Elektrofahrzeug A method and control device to detect a blocked electric machine in an electric vehicle |
| 11/21/2012 | EP2524424A2 A fault tolerant electrical machine |
| 11/21/2012 | CN202550952U Motor driving device and motor device applying same |
| 11/21/2012 | CN202550947U Efficient control device for direct-current brushless motor based on phase current cutoff angle |
| 11/21/2012 | CN202550910U Vehicle-mounted power supply inverter of electric vehicle |
| 11/21/2012 | CN202550637U Self-adaptive energy-saving charging maintainer for electric vehicle storage battery |
| 11/21/2012 | CN202550624U Lithium battery charging power supply with charging protection function |
| 11/21/2012 | CN202550572U Valve bank controller |
| 11/21/2012 | CN202550532U Intelligent microgrid power supply system |
| 11/21/2012 | CN202550515U High-power IGBT (insulated gate bipolar transistor) comprehensive overcurrent protection circuit |
| 11/21/2012 | CN202550506U Electronic transformer with function of circuit protection |
| 11/21/2012 | CN202550505U Protection simulation device for inconsistency of three phases of circuit breaker |
| 11/21/2012 | CN202550504U DC stage difference device having printing function |
| 11/21/2012 | CN202550503U Direct-current differential device based on embedding technology |
| 11/21/2012 | CN202550502U Electric transmission line optical fiber protection provided with double-passage function |
| 11/21/2012 | CN202550501U High voltage circuit breaker with closing coil overtemperature protection function |