| 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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| 10/07/2009 | EP0815610B1 Battery pack having under-voltage and over-voltage protection |
| 10/07/2009 | CN201323627Y Short-circuit protection system for digital/analog TV tuner |
| 10/07/2009 | CN201323450Y Mine feed protector for detecting and displaying vacuum tube adhesion |
| 10/07/2009 | CN201323449Y Integrated device for over-voltage limit in electric power transmission and distribution system |
| 10/07/2009 | CN201323448Y Overvoltage protective device for current transformer secondary side |
| 10/07/2009 | CN201323445Y Branch line fault separating and segmenting equipment of power distribution network |
| 10/07/2009 | CN201323444Y Improved control circuit of recloser |
| 10/07/2009 | CN201323443Y Miss trip protector |
| 10/07/2009 | CN201323442Y Multifunctional motor protective electricity economizer |
| 10/07/2009 | CN201323441Y Anti-interference and integrative motor protective switch |
| 10/07/2009 | CN201323440Y Embedded motor overheat protector |
| 10/07/2009 | CN201323439Y Protective device for ratio differential microcomputer |
| 10/07/2009 | CN201321991Y Magnetic-control solar energy pumping device |
| 10/07/2009 | CN101553738A Flashover analysis tool |
| 10/07/2009 | CN101552537A Inductor packaging for power converters |
| 10/07/2009 | CN101552462A Black-start method |
| 10/07/2009 | CN101552461A Method for protecting power distribution network containing distributed generation |
| 10/07/2009 | CN101552460A Indoor cable head short-circuit protection method |
| 10/07/2009 | CN101552459A Short-circuit protection of series connection node in a hydrocarbon exploration or an electrical production system |
| 10/07/2009 | CN101552458A Protective circuit of a control and protection switch |
| 10/07/2009 | CN101552457A Power supply anomaly protection method, device and base station |
| 10/07/2009 | CN101552456A Hot plug electronic device with high use safety and overheating protection device thereof |
| 10/07/2009 | CN101552455A Method and device for leakage protection method of microwave oven |
| 10/07/2009 | CN101552454A Method for preventing electrical floatation and overdischarging of lead-acid cell, and detection control device thereof |
| 10/07/2009 | CN101552453A Portable electronic device as well as protection circuit and protection method for intelligent battery thereof |
| 10/07/2009 | CN101552452A Short-circuit protection circuit for switching power supply of frequency converter |
| 10/07/2009 | CN101552451A Switch power supply cycle-by-cycle wave over-voltage protection circuit |
| 10/07/2009 | CN101552076A Unsaturated resin plastic sealed explosion-proof electromagnetic coil |
| 10/07/2009 | CN100547891C Voltage converter for preventing switch device from being damaged utilizing protection circuit |
| 10/07/2009 | CN100547877C Automatic stop charging control circuit of positive and negative combination pulse charge machine |
| 10/07/2009 | CN100547871C Electric power network and its control device and control method |
| 10/06/2009 | US7599162 Overload protection control mechanism for a power supply |
| 10/06/2009 | US7599161 Relay device and corresponding method |
| 10/06/2009 | US7598748 Inverter system |
| 10/06/2009 | US7598713 System and method for electric current and power monitor and control of a generator |
| 10/01/2009 | WO2009120229A1 Method to analyze system reconfiguration for automated isolation of disturbances to the power distribution system |
| 10/01/2009 | US20090244939 Method and apparatus for resetting silicon controlled rectifiers in a hybrid bridge |
| 10/01/2009 | US20090244938 Switching apparatus for grounding an inverter |
| 10/01/2009 | US20090243554 Method of protecting battery for hybrid vehicle |
| 10/01/2009 | US20090243545 Battery pack |
| 10/01/2009 | US20090243528 Control System for Window Lifters of a Motor Vehicle |
| 10/01/2009 | US20090243367 Seat belt winding method, seat belt retractor, and seat belt apparatus |
| 10/01/2009 | US20090242292 Method and system for operating an electric machine |
| 10/01/2009 | DE102009014830A1 Verfahren und System zum Betrieb einer Elektromaschine Method and system for operating an electric machine |
| 10/01/2009 | DE102008016589A1 Schutzvorrichtung Guard |
| 10/01/2009 | DE102008015868A1 Einrichtung zur Drehzahlregelung für Asynchronmotoren Means for speed control of induction motors |
| 09/30/2009 | EP2105982A1 Battery pack |
| 09/30/2009 | EP1529328B1 Electrical network for surface and submarine vessels for example naval ships and for offshore units |
| 09/30/2009 | EP1078433B1 Method and device for determining state variables |
| 09/30/2009 | CN201319503Y Power-off protection structure for soymilk maker |
| 09/30/2009 | CN201319502Y Novel electric bicycle charger |
| 09/30/2009 | CN101548461A Semiconductor protective elements for controlling short-circuits at the DC end of voltage source converters |
| 09/30/2009 | CN101546906A Method for fault line selection of electric distribution network by using S transformation energy relative entropy |
| 09/30/2009 | CN101546905A Power-off continuous protective circuit for contactor based on energy storage capacitor |
| 09/30/2009 | CN101546904A Method of protecting battery for hybrid vehicle |
| 09/30/2009 | CN101546893A Live conductor stringing and splicing method and apparatus |
| 09/30/2009 | CN100546144C Low current neutral grounding system fault route selecting method by wavelet package decompose and correlation analysis |
| 09/30/2009 | CN100546143C Low current neutral grounding malfunction detection and positioning device and method |
| 09/29/2009 | US7595605 Method and control circuit for determining an operating state when controlling a fan motor |
| 09/29/2009 | US7595569 Versatile and intelligent power controller |
| 09/24/2009 | WO2009043186A4 Arrangement for protecting inverters comprising an intermediate voltage circuit from a bridge short-circuit |
| 09/24/2009 | WO2008101837A3 Method and device for monitoring the operation of a synchronous motor |
| 09/24/2009 | US20090237845 Systems and methods involving protection of superconducting generators for power applications |
| 09/24/2009 | US20090237024 Method and apparatus for pinch protection for a motor-driven closure system |
| 09/24/2009 | US20090237023 Device for Controlling Opening/Closing Body for Vehicle |
| 09/24/2009 | DE102008014129A1 Schutzvorrichtung für Solarpanels Protection device for solar panels |
| 09/23/2009 | EP2104198A2 Systems And Methods Involving Protection Of Superconducting Generators For Power Applications |
| 09/23/2009 | EP2102834A2 Method and system for video surveillance system motor overcurrent protection |
| 09/23/2009 | CN201315480Y Short circuit protective device for indoor cable head |
| 09/23/2009 | CN201315479Y Pulse by pulse overcurrent shutoff protective circuit |
| 09/23/2009 | CN201315478Y Three-phase motor circuit with open-phase protection |
| 09/23/2009 | CN201315477Y Low-voltage motor protective device |
| 09/23/2009 | CN201315476Y Electric actuating mechanism overlarge moment protecting device |
| 09/23/2009 | CN201315475Y Thermorelay circuit with phase failure protection used for alternating current motor |
| 09/23/2009 | CN201315474Y Protection system of electric motor |
| 09/23/2009 | CN201315473Y 异步电机保护器 Asynchronous motor protection |
| 09/23/2009 | CN101540575A Flexible starting motor |
| 09/23/2009 | CN101540550A Circuit device with full-voltage starting, partial-voltage work and power-off delay |
| 09/23/2009 | CN101540512A Multifunctional management module of double series lithium batteries |
| 09/23/2009 | CN101540501A Ground electrode circuit protective system and device of high-voltage DC transmission system |
| 09/23/2009 | CN101540500A Data synchronization method of digital optical fiber differential protective clock by relay method |
| 09/23/2009 | CN101540499A Fast line selection tripping device for medium resistance grounding for urban distribution network and line selection method |
| 09/23/2009 | CN101540498A Method and device for controlling non-setting inrush current of high-voltage switch |
| 09/23/2009 | CN101540497A Thermal-shutdown circuit and method thereof |
| 09/23/2009 | CN101540496A Measuring and protecting device of output current of chain-type inverter |
| 09/23/2009 | CN101540495A Loss of synchronism protection system and method based on geometrical characteristics of movement locus of generator |
| 09/23/2009 | CN101540490A Ice-prevention and ice-removal electric fence and working method |
| 09/23/2009 | CN100544153C Method for accelerating discrimination reclosing route selection based on two sides TV |
| 09/23/2009 | CN100544152C AC motor over-load inverse time-lag protection method based on heat accumulation |
| 09/22/2009 | US7593205 Safety switching apparatus and method for safe disconnection of a load |
| 09/22/2009 | US7593198 Relay circuit |
| 09/22/2009 | US7592820 Isolated measurement circuit for sensor resistance |
| 09/22/2009 | CA2452860C Resistance assembly for hookstick operated switching assembly |
| 09/17/2009 | WO2009114667A1 Capacitor bank monitor and method of use thereof |
| 09/17/2009 | WO2009057866A3 Method for controlling motor of air conditioner and motor controller of the same |
| 09/17/2009 | US20090231892 Uninterruptible power supply |
| 09/17/2009 | US20090231763 Over-voltage protection device |
| 09/17/2009 | US20090230923 Battery management circuit |
| 09/17/2009 | US20090230914 Motor Start Circuit with Capacitive Discharge Protection |
| 09/17/2009 | US20090230766 Vehicle power supply device |