| 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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| 03/27/2013 | CN202840606U Power supply device with safety mechanisms |
| 03/27/2013 | CN202840523U High-voltage reactive on-site compensation circuit |
| 03/27/2013 | CN202840502U Electric forklift hydraulic pump DC motor controller based on CANopen |
| 03/27/2013 | CN202840496U Wind electricity grid relay protection device |
| 03/27/2013 | CN202840495U Improved crown block protection cabinet major loop control circuit |
| 03/27/2013 | CN202840494U Transformer high-voltage side backup protection and monitoring device for railway power substation |
| 03/27/2013 | CN202840493U Motor, controller thereof and overheating protection circuit of power drive module thereof |
| 03/27/2013 | CN202840492U Solar cell module protection circuit, solar junction box and solar power generation system |
| 03/27/2013 | CN202840491U Active vehicle recharging protection apparatus |
| 03/27/2013 | CN202840490U Lithium battery protective circuit and device |
| 03/27/2013 | CN202840489U Output short-circuit protection and output overload protection apparatus for inverter |
| 03/27/2013 | CN202840488U Switch power control circuit with short circuit protection |
| 03/27/2013 | CN202840487U Metal organic chemical vapor deposition (MOCVD) device and power failure protection device therein |
| 03/27/2013 | CN202840486U Phase loss and phase dislocation detecting circuit of three-phase power source |
| 03/27/2013 | CN202840485U Intelligent low-voltage switch for coal mines |
| 03/27/2013 | CN202840484U Smart comprehensive protection device for multi-speed motor |
| 03/27/2013 | CN202840483U Motor temperature anomaly protection circuit for air compressor system |
| 03/27/2013 | CN202840482U Leakage protection device for mobile power generators |
| 03/27/2013 | CN202840481U Differential protector of phase-shifting transformer |
| 03/27/2013 | CN202840480U Power system differential protection system for aircraft electric power source |
| 03/27/2013 | CN202840479U Underground coal mine high-voltage switch protector |
| 03/27/2013 | CN202839878U Storage battery provided with reverse connection protector |
| 03/27/2013 | CN202837938U Remote bidirectional intelligent monitor and motor protective device of electric water pump |
| 03/27/2013 | CN202837520U Power-off detection circuit for alternating-current power source and direct-current variable-frequency air conditioner |
| 03/27/2013 | CN202836824U Low-voltage intelligent capacitor temperature measuring system |
| 03/27/2013 | CN103004049A Breaker failure protection of HVDC circuit breakers |
| 03/27/2013 | CN103004048A Fault protection of HVDC transmission lines |
| 03/27/2013 | CN103001562A Temperature-protection built-in integrated direct-current motor driving circuit for toy |
| 03/27/2013 | CN103001497A Power supply apparatus and image forming apparatus |
| 03/27/2013 | CN103001490A Direct current (DC)-DC conversion controller with overload protection function |
| 03/27/2013 | CN103001324A Method for optimizing scheduling and handling of power grid accidents |
| 03/27/2013 | CN103001268A Electric automobile charging system, electric automobile charging method and automobile with electric automobile charging system |
| 03/27/2013 | CN103001265A High-voltage output electrical box for power battery |
| 03/27/2013 | CN103001213A Continuous power supplying guarantee device for power supply |
| 03/27/2013 | CN103001199A Ethernet-based current differential protection device and implementation method thereof |
| 03/27/2013 | CN103001198A Power box |
| 03/27/2013 | CN103001197A Method for achieving dynamic self-adapting bidirectional current protection |
| 03/27/2013 | CN103001196A Relay production method for cutting transformer dead zone faults |
| 03/27/2013 | CN103001195A Relay protection method capable of quickly removing dead zone fault of transformer |
| 03/27/2013 | CN103001194A On-line line fault monitoring and protection device and protection method thereof |
| 03/27/2013 | CN103001193A Centralized feeder automation control method for demarcation fault processing |
| 03/27/2013 | CN103001192A Voltage-time feeder automation control method based on primary station control strategies |
| 03/27/2013 | CN103001191A Busbar differential protection method and system for flexible direct-current closed-loop intelligent distribution network |
| 03/27/2013 | CN103001190A Battery protection circuit and battery protection device and battery pack |
| 03/27/2013 | CN103001189A Converter overvoltage and overcurrent fault alarming protective circuit |
| 03/27/2013 | CN103001188A Method of operating a residual current circuit breaker and residual current circuit breaker for a frequency converter |
| 03/27/2013 | CN103001187A Frequency inverter and method for detecting and blocking a fault current in a frequency inverter |
| 03/27/2013 | CN103001186A Motor-driven controller with current-limiting protection |
| 03/27/2013 | CN103001185A Warning method for instantaneous overload of cold rolling production line looper motor |
| 03/27/2013 | CN103001184A Method for controlling intelligent protection system of direct-current motor |
| 03/27/2013 | CN103001183A Intelligent protection system for direct current motor |
| 03/27/2013 | CN103001182A Protection control method for overtemperature and super wind speed of wind-driven generator |
| 03/27/2013 | CN103001181A Method for solving false action of differential protection when power transfer of transformer |
| 03/27/2013 | CN103001180A Sensitivity check result display method based on geographical wiring diagram |
| 03/27/2013 | CN103001179A LED luminaire and short-circuit protection circuit thereof |
| 03/27/2013 | CN102998583A Method for judging line breaking of neutral line of voltage circuit |
| 03/27/2013 | CN102369644B Control circuit for preventing battery group from being reversely connected and power supply system for base station |
| 03/27/2013 | CN102355177B Reactive circuits of electric fork truck AC servo control system |
| 03/27/2013 | CN102354958B Device and method for protecting power switching tube of inverter through software and hardware combination |
| 03/27/2013 | CN102156240B Regional electric network failure diagnosis method based on five-layer and three-region cause and effect rule network |
| 03/27/2013 | CN102080694B Device and method for preventing locking of motor of purely electric vehicle |
| 03/27/2013 | CN102055368B 100-KVA micro-grid energy storage bidirectional converter |
| 03/27/2013 | CN101950948B Intelligent motor management unit of chest of drawers |
| 03/27/2013 | CN101917116B Short circuit current controlling method and apparatus in switch mode DC/DC voltage regulators |
| 03/27/2013 | CN101916982B Judgement and protection method for open phase of frequency-conversion air conditioner compressor |
| 03/27/2013 | CN101916980B Interlock protection device and method for dry type transformer |
| 03/27/2013 | CN101909969B Method for the detection of a thermal overload situation in a hand-held power tool |
| 03/27/2013 | CN101888114B Multifunctional power supply of vehicular automotive electronic device |
| 03/27/2013 | CN101872988B Battery pack |
| 03/27/2013 | CN101867177B Over-voltage and over-current hardware protection circuit and DC power supply circuit |
| 03/27/2013 | CN101710628B Battery low-voltage protection circuit and battery management circuit |
| 03/27/2013 | CN101051744B Electric machine tool and method for operating thereof |
| 03/26/2013 | US8406018 Series resonant converter with overload delay and short-circuit protection mechanisms |
| 03/26/2013 | US8405938 Power supply module |
| 03/26/2013 | US8405410 Detection apparatus and method for superconducting coil quench |
| 03/26/2013 | US8405365 Output voltage control apparatus of generator |
| 03/26/2013 | US8405357 Battery unit, battery system, electronic device, charging control method of battery, and discharging control method of battery |
| 03/26/2013 | US8405332 Method to eliminate current surge during spindle spin up |
| 03/26/2013 | CA2789763A1 Motor control center unit with multiple feeder configurations |
| 03/21/2013 | WO2013038919A1 Magnetizing inrush current suppressing device |
| 03/21/2013 | WO2013037418A1 Device and method for protecting a load |
| 03/21/2013 | WO2013037417A1 Device and method for protecting a consumer |
| 03/21/2013 | WO2012118701A3 System and method for operating inverters |
| 03/21/2013 | US20130070373 Method For Compensating Overload Trip Curve For CT Error |
| 03/21/2013 | DE19939861B4 Motor-Laststeuersystem Engine load control system |
| 03/21/2013 | DE102012018321A1 Method for separation of traction battery of electrical vehicle from electrical load, involves connecting one of two contactors in series arrangement with precharge relay, and opening another contactor and/or precharge relay |
| 03/21/2013 | DE102012018299A1 Motorwindungsüberhitzungs-Schutzvorrichtung und Motorsteuervorrichtung Motorwindungsüberhitzungs protection device and engine control device |
| 03/21/2013 | DE102011053728A1 Battery system, has energy storage modules comprising control units that are connected with each other with network, where modules are provided with switching elements that are controlled by control units and switching off storage modules |
| 03/21/2013 | CA2844245A1 Magnetizing inrush current suppression device |
| 03/20/2013 | EP2571127A1 Electrical supply control device |
| 03/20/2013 | EP2569843A1 A plant for transmitting high voltage dc electric power including overvoltage protection |
| 03/20/2013 | EP2569796A1 Protection device to be associated with a current cutout device in an electrical circuit with increased lifetime |
| 03/20/2013 | EP2569782A2 On-load tap changer |
| 03/20/2013 | CN202818368U Regional electrical network relay protection setting system |
| 03/20/2013 | CN202818205U Series-excited brush direct-current motor controller |
| 03/20/2013 | CN202818200U Motor control chip and DC brushless motor |
| 03/20/2013 | CN202818178U Motor soft starter |
| 03/20/2013 | CN202818159U Solar photovoltaic control system |
| 03/20/2013 | CN202818128U Power adapter possessing automatic protection function |
| 03/20/2013 | CN202818121U Frequency converter, and wind and light energy complementation power generation system |