| 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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| 07/28/2010 | CN101789602A Dynamic simulation device of extra-high, ultrahigh voltage thyristor controlled series compensation device and test method thereof |
| 07/28/2010 | CN101789592A Intelligent protection module for surge protector |
| 07/28/2010 | CN101789591A Novel back-up protection device for surge protector |
| 07/28/2010 | CN101789588A Method for openly judging three phase fault in power system line protection oscillation |
| 07/28/2010 | CN101789587A Automatic reclosing method of A type overhead line- cable hybrid line |
| 07/28/2010 | CN101789586A Protecting structure for preventing interface circuit of receptor equipment from being damaged |
| 07/28/2010 | CN101789585A Secondary battery protection circuit |
| 07/28/2010 | CN101789584A Method for differential protection of sampling value of abrupt change and differential relays |
| 07/28/2010 | CN101789583A Real-time digital emulation automatic test method |
| 07/28/2010 | CN101789582A Electric water heater protection device |
| 07/28/2010 | CN101788602A Earth leakage tester, earth leakage circuit breaker equipped with the same, circuit breaker, and insulation monitor |
| 07/28/2010 | CN101383506B Method for configuration protection of extra-high voltage DC power transmission system |
| 07/27/2010 | US7764524 Inverter for driving a load including a capacitive element in an input stage |
| 07/27/2010 | US7764523 Method of operating a converter circuit |
| 07/27/2010 | US7764480 Electronic device, and circuit and method for protecting the same |
| 07/27/2010 | US7764051 Alternating voltage generation apparatus and power output apparatus |
| 07/22/2010 | WO2010082609A1 Protection/monitor circuit and battery pack |
| 07/21/2010 | CN201533435U Solar streetlight controller |
| 07/21/2010 | CN201533187U Micro control unit intelligent PWM-controlled voltage-current type battery charger |
| 07/21/2010 | CN201533156U Extra-high-voltage transmission line self-adaptive reclosing control device |
| 07/21/2010 | CN201533155U Switch power supply over-voltage protection circuit and switch power supply circuit |
| 07/21/2010 | CN201533154U Phase failure protector of three-phase motor |
| 07/21/2010 | CN201533153U Control circuit for preventing frequent make-and-break of alternating current contactor |
| 07/21/2010 | CN201532430U Distribution circuit fault route selecting apparatus for arc-suppression coil grounding system through neutral points |
| 07/21/2010 | CN201531755U LED rechargeable flashlight with charging indication and protection |
| 07/21/2010 | CN201530331U Electrified railway feed line protection, measurement, and control device suitable for passenger special line |
| 07/21/2010 | CN101783647A Integrated air conditioner frequency converter for air conditioner of electric passenger car |
| 07/21/2010 | CN101783640A Motor speed closed loop control method |
| 07/21/2010 | CN101783584A Inversion three-level wave-chasing current limiting circuit and wave-chasing current limiting method thereof |
| 07/21/2010 | CN101783519A Charger management circuit |
| 07/21/2010 | CN101783505A Automatic reclosing method of B-type overhead line-cable mixed line |
| 07/21/2010 | CN101783504A Protection circuit, battery system and protection method |
| 07/21/2010 | CN101783503A Overvoltage protection circuit |
| 07/21/2010 | CN101783502A Electronic type overcurrent protector |
| 07/21/2010 | CN101783501A Motor driving circuit |
| 07/21/2010 | CN101783500A Protection method and stand structure of oil field DC motor |
| 07/21/2010 | CN101783499A Protecting and monitoring device of group microcomputer motor |
| 07/21/2010 | CN101783498A Modularized microcomputer motor protective monitoring device |
| 07/21/2010 | CN101783497A Multi-mode redundant field suppression protection loop |
| 07/21/2010 | CN101414749B Protection device for rechargeable battery set |
| 07/21/2010 | CN101345414B Main electric power line integration fault location protection system based on GPS and fault transient signal |
| 07/21/2010 | CN101325329B Method for implementing earthing distance measurement element based on negative sequence fault current component |
| 07/21/2010 | CN101207280B Method and device of intelligent calibration for power system relay protection |
| 07/21/2010 | CN101091297B 保护电路以及电池组件 Protection circuit and battery pack |
| 07/20/2010 | US7760517 Converter for an ion propulsion system |
| 07/20/2010 | US7760481 Electronic device for controlled failure |
| 07/20/2010 | US7760478 Control circuit with short-circuit protection for current sense terminal of power converters |
| 07/20/2010 | US7760027 Power amplifier output voltage reduction method |
| 07/20/2010 | US7759966 Methods and systems for evaluating permanent magnet motors |
| 07/20/2010 | US7759922 Method and apparatus to provide temporary peak power from a switching regulator |
| 07/20/2010 | US7759891 Apparatus and method for detecting abnormal conditions of a motor |
| 07/15/2010 | WO2010080490A1 Feeder automation for an electric power distribution system |
| 07/15/2010 | WO2010079308A2 Electrical system for starting up aircraft engines |
| 07/15/2010 | WO2010036029A3 Apparatus for protecting against the asynchronization of a generator |
| 07/15/2010 | US20100177451 Motor Overload Protecting Method |
| 07/15/2010 | US20100177450 Method and devices for stabilizing electric grid power |
| 07/15/2010 | DE102009004556A1 Fehlerdetektionsmethode für elektrische Motoren mit einem oder mehreren Sternpunkten Error detection method for electric motors with one or more rating points |
| 07/15/2010 | DE102009004453A1 Protection method for monitoring alternating current-and direct current- power capacitor systems, involves utilizing deviation of quotient via limitation values to monitor disruptive breakdown in capacitor systems |
| 07/15/2010 | DE102009000120A1 Verfahren und Vorrichtung zur Überwachung des Anlaufs eines elektrischen Antriebs Method and apparatus for monitoring the startup of an electric drive |
| 07/15/2010 | CA2748970A1 Electrical system for starting up aircraft engines |
| 07/15/2010 | CA2746772A1 Feeder automation for an electric power distribution system |
| 07/14/2010 | EP2207252A1 Substation automation device and system |
| 07/14/2010 | EP2207247A1 Earth leakage detection method |
| 07/14/2010 | EP2207041A1 Motor overload protecting method |
| 07/14/2010 | EP1699287B1 Sprayer thermal protection |
| 07/14/2010 | CN201528304U Intelligent control device of single-phase DC brushless motor |
| 07/14/2010 | CN201528194U Parallel medium resistor switching control system |
| 07/14/2010 | CN201528193U Intelligent switch for battery protection |
| 07/14/2010 | CN201528192U Protective circuit for neon light electronic transformer |
| 07/14/2010 | CN201528191U Heat regulator module of electromotor protector |
| 07/14/2010 | CN201528190U Novel backup protection equipment for surge protector |
| 07/14/2010 | CN201528189U Novel backup protection device of surge protector |
| 07/14/2010 | CN201528188U Over current protective device of magnetically controlled reactor |
| 07/14/2010 | CN201527621U Novel ATX power supply protection controlling means |
| 07/14/2010 | CN201526618U Dedicated universal vibration damper for construction hoist |
| 07/14/2010 | CN101777846A System and method for controlling switch power supply |
| 07/14/2010 | CN101777825A Power supply devices |
| 07/14/2010 | CN101777790A Reliable power supply circuit of triple redundancy embedded computer system |
| 07/14/2010 | CN101777785A Uninterrupted power supply (UPS) electricity separating system and electricity separating method based on dynamic environment monitoring |
| 07/14/2010 | CN101777779A Solar mobile charging pavilion |
| 07/14/2010 | CN101777759A Complete set of protection devices for ultrahigh-speed DC line on basis of single-ended transient signals and protection method thereof |
| 07/14/2010 | CN101777758A Method for detecting islanding by frequency deviation applying pulse current interference |
| 07/14/2010 | CN101777757A Small current grounding route selection method |
| 07/14/2010 | CN101777756A Over-current protection circuit for insulated gate bipolar transistor |
| 07/14/2010 | CN101777755A High-voltage capacitor imbalance protecting method for high-voltage DC transmission system |
| 07/14/2010 | CN101777754A Overload operation protection method for motor |
| 07/14/2010 | CN101777753A Multi-component recombination current flashy flow judgment method of transformer and block relay |
| 07/14/2010 | CN101776241A LED solar illuminator |
| 07/14/2010 | CN101394094B Full automatic high efficient voltage step-up step-down circuit |
| 07/14/2010 | CN101335450B Adaptive regulating method for preventing overload mis-operation by distance protection |
| 07/14/2010 | CN101192752B High-voltage arc grounding recognition method based on spectrum analysis |
| 07/13/2010 | US7755868 Electrical equipment for distribution network |
| 07/13/2010 | US7755317 Methods for electric vehicle motor control and rotor position detection fault-tolerant processing |
| 07/13/2010 | US7755311 Fan abnormality detection device |
| 07/13/2010 | CA2326436C Motor operator for over-head air break electrical power distribution switches |
| 07/09/2010 | CA2649093A1 Low voltage step warmer |
| 07/08/2010 | WO2010078119A2 Immersion sensor to protect battery |
| 07/08/2010 | WO2010075694A1 Power plant feed line switch control module for a nuclear power station |
| 07/08/2010 | WO2010040106A3 Electronic current interrupt device for battery |
| 07/08/2010 | US20100173182 Low-Voltage Connection with Safety Circuit and Method for Determining Proper Connection Polarity |