| 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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| 01/19/2011 | CN101552461B Method for protecting power distribution network containing distributed generation |
| 01/19/2011 | CN101383565B Wave flexibly controlled high-frequency soft switching square wave inverting power source |
| 01/19/2011 | CN101055985B Battery pack for electric hand-held power tool |
| 01/19/2011 | CN101023366B A method of monitoring line faults in a medium voltage network |
| 01/18/2011 | US7872881 Secondary regulation in a multiple output flyback topology |
| 01/18/2011 | US7872842 Overcurrent protection device for a power supply device and related power supply device |
| 01/18/2011 | US7872362 Vehicle-use power supply control apparatus |
| 01/17/2011 | CA2709565A1 Dc power tool with safety detection device |
| 01/13/2011 | WO2011005534A2 Charged capacitor warning system and method |
| 01/13/2011 | WO2011003816A2 Method for operating a closing device of a motor vehicle and a closing device |
| 01/13/2011 | WO2011003675A1 Substation automation system with remote redundant protection function |
| 01/13/2011 | WO2011003435A1 An arrangement and a method for monitoring the status of dc-side reactors in an hvdc transmission |
| 01/13/2011 | US20110008195 Centrifugal pump having increased operational safety |
| 01/13/2011 | US20110008141 Electronic control system and method for an auxiliary device interlock safety system |
| 01/13/2011 | US20110007436 Device and method for taking a safety precaution an in electrical tool |
| 01/13/2011 | US20110006716 Method for protecting an electronic device driven by dc motor and circuit for detecting positioning signals thereof |
| 01/13/2011 | US20110005689 Motor control systems, foldable partitions employing motor control systems, methods of monitoring the operation of electric motors and foldable partitions |
| 01/12/2011 | EP2273644A1 Substation automation system with protection functions |
| 01/12/2011 | EP2273643A1 Protection circuit for a power supply unit and respective power supply unit |
| 01/12/2011 | EP2273642A2 Method and apparatus for automated reconfiguration of an electric power distribution system with enhanced protection |
| 01/12/2011 | EP2273107A1 Variable speed distributed drive train wind turbine system |
| 01/12/2011 | CN201708757U Field suppression loop in short connection with generator rotor in halt state of synchronous generator |
| 01/12/2011 | CN201708756U Driving device of series excited DC motor of variable paddle control system |
| 01/12/2011 | CN201708690U IGBT direct serial protective device |
| 01/12/2011 | CN201708582U Redundant transmission line operating condition on-line monitoring device |
| 01/12/2011 | CN201708581U Double-power-supply automatic switching loop |
| 01/12/2011 | CN201708568U Charger utilizing used batteries to supply power |
| 01/12/2011 | CN201708559U Energy-saving electric automobile charger |
| 01/12/2011 | CN201708554U Novel vanadium battery charging and discharging control cabinet |
| 01/12/2011 | CN201708535U Diversion protective cover for overhead line terminal |
| 01/12/2011 | CN201708534U Panel kit of 10kV feeder protective device |
| 01/12/2011 | CN201708533U Touch-type all-metal 10kV feeder protection device |
| 01/12/2011 | CN201708532U Reverse connection and backflow preventing system for electric car charger |
| 01/12/2011 | CN201708531U Lithium ion intelligent battery group capable of charging and discharging circularly |
| 01/12/2011 | CN201708530U UPS battery group voltage-sharing protector |
| 01/12/2011 | CN201708529U Charging protection device for lithium battery charger |
| 01/12/2011 | CN201708528U Inverter with reverse connection protection |
| 01/12/2011 | CN201708527U Railway turnout indicating circuit |
| 01/12/2011 | CN201708526U Protective device for power brake of test board |
| 01/12/2011 | CN201708525U Three-phase motor protector |
| 01/12/2011 | CN201708524U Motor open-phase overload temperature monitoring protector |
| 01/12/2011 | CN201708523U Electronically-controlled protection device |
| 01/12/2011 | CN201708522U Cooling pipe of cooler |
| 01/12/2011 | CN201708521U High-voltage motor differential protection mechanism consisting of self-balance transformers |
| 01/12/2011 | CN201708520U 35kV combined type transformer fuse protector |
| 01/12/2011 | CN201708519U Overtemperature protection circuit of induction cooker |
| 01/12/2011 | CN201707427U Selectively combined-type relay protection testing circuit |
| 01/12/2011 | CN201707406U High-frequency electric dust-removing flashover detecting circuit |
| 01/12/2011 | CN101944737A Novel surge protector |
| 01/12/2011 | CN101944736A Novel surge protector |
| 01/12/2011 | CN101944735A Novel surge protector |
| 01/12/2011 | CN101944734A Novel surge protector |
| 01/12/2011 | CN101944733A Novel surge protector |
| 01/12/2011 | CN101944732A Novel surge protector |
| 01/12/2011 | CN101944731A Novel surge protector |
| 01/12/2011 | CN101944723A Islet operation detecting method for photovoltaic parallel network generating system |
| 01/12/2011 | CN101944722A Method and device for adjusting output power of electronic equipment |
| 01/12/2011 | CN101944721A Valve fault detection treatment method of high-voltage direct-current transmission system |
| 01/12/2011 | CN101944720A Motor overload protector |
| 01/12/2011 | CN101944719A Detection system and detection method of capacitance sleeve pipe and current transformer |
| 01/12/2011 | CN101944718A Overload protective device of electric furnace transformer |
| 01/12/2011 | CN101499651B Fast acting method for microcomputer type relay protection |
| 01/12/2011 | CN101488671B Management module for multi-section series lithium ionic cell pack |
| 01/12/2011 | CN101483332B Phase differential protection method for sampling value differential starting |
| 01/12/2011 | CN101453161B Switch type converter having over-current protection |
| 01/12/2011 | CN101394077B Digital protective relay system |
| 01/12/2011 | CN101299538B Cable-aerial mixed line fault travelling wave ranging method |
| 01/11/2011 | US7869235 Flyback converter having an active snubber |
| 01/11/2011 | US7869167 Method and device for prevention and protection of electrical transformer against explosion and fire |
| 01/06/2011 | WO2011001845A1 Power distribution system |
| 01/06/2011 | WO2011000670A1 Device and method for securing an electric line with a controllable switching element |
| 01/06/2011 | US20110001446 Driving device with motor current overload protection assembly |
| 01/05/2011 | EP2269296A2 Drive circuit for a dc motor, comprising an h-bridge and a motor braking circuit |
| 01/05/2011 | EP1042860B1 Controlled rectifier bridge with over-voltage protection |
| 01/05/2011 | DE102009031647A1 Device for limiting short-circuit current in low-voltage plant for alternating current, comprises monitoring unit for sending error signal corresponding to fault arc, and current detection unit for transmission of overcurrent signal |
| 01/05/2011 | DE102009027387A1 Vorrichtung und Verfahren zum Absichern einer elektrischen Leitung mit einem steuerbaren Schaltelement Apparatus and method for protecting an electrical line with a controllable switching element |
| 01/05/2011 | CN201699849U Integrated circuit with bias and polarization choice function |
| 01/05/2011 | CN201699639U Electronic speed governor of yacht |
| 01/05/2011 | CN201699596U Power supply for antenna amplifier with functions of voltage stabilization and automatic short-circuit protection |
| 01/05/2011 | CN201699473U UPS maintenance bypass interlocking mechanism |
| 01/05/2011 | CN201699464U Primary power supply system |
| 01/05/2011 | CN201699461U Charger of battery of mobile telephone |
| 01/05/2011 | CN201699449U Portable multifunctional power supply |
| 01/05/2011 | CN201699448U Micro-power-consumption constant-voltage constant-current voltage-reducing circuit board of secondary battery |
| 01/05/2011 | CN201699447U Timing charger |
| 01/05/2011 | CN201699424U Universal static type energy-saving compensation device |
| 01/05/2011 | CN201699403U Protective device for releasing inverse power of ship hoisting equipment |
| 01/05/2011 | CN201699402U Novel lithium battery short-circuit protection circuit |
| 01/05/2011 | CN201699401U Protection circuit of power lithium ion battery |
| 01/05/2011 | CN201699400U Short-circuit protection circuit for flyback power supply |
| 01/05/2011 | CN201699399U Comprehensive motor protector based on microprocessor |
| 01/05/2011 | CN201699398U Mine motor explosion-proof temperature intelligent control device |
| 01/05/2011 | CN201699397U Intelligent protecting device of transformer for intelligent power system |
| 01/05/2011 | CN201699396U Protection device for high-power transmitter |
| 01/05/2011 | CN201699323U Power cabinet comprising crowbar protection circuit |
| 01/05/2011 | CN201698206U Multifunctional automobile voltage regulator based on SCM control |
| 01/05/2011 | CN201698008U Device for displaying power information of battery in real time |
| 01/05/2011 | CN201697994U Small-current grounding system single-phase earth fault line selection device |
| 01/05/2011 | CN101939889A Earth leakage detection method |
| 01/05/2011 | CN101938117A Current differential protection method for smart distribution network |