| Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
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| 09/09/2009 | EP2099110A1 Method for testing an arc fault detector |
| 09/09/2009 | EP2097961A1 Power supply monitoring system |
| 09/09/2009 | CN201307759Y Bypass automatic converter |
| 09/09/2009 | CN201307758Y Open-phase protector |
| 09/09/2009 | CN201307757Y Electric-dazzling prevention device of casting rolling mill |
| 09/09/2009 | CN201307756Y Electric leakage protection alarm |
| 09/09/2009 | CN201307755Y Equipment for identifying fault types in multiphase power transmission system and multiphase power transmission system |
| 09/09/2009 | CN101529683A Method and apparatus for determining circular characteristic |
| 09/09/2009 | CN101527446A Protection circuit applied to controller |
| 09/09/2009 | CN101527445A Protection control device |
| 09/09/2009 | CN101527414A Power plug with neutral wire leakage protection |
| 09/09/2009 | CN101527234A Shunt release capable of detecting abnormal power state |
| 09/09/2009 | CN101527067A Intelligent metering control electricity meter box |
| 09/09/2009 | CN100539345C Dead-space free circuit breaker for earth leakage abrupt change and operation method thereof |
| 09/09/2009 | CN100539344C Alarming device for exceptional voltage of the grounding system |
| 09/09/2009 | CN100539343C Electronic trip unit with user-adjustable sensitivity to current spikes |
| 09/09/2009 | CN100539342C Device for deviating overvoltages comprising one or several parallel mounted overvoltage limiting elements arranged in a structural unit |
| 09/08/2009 | US7586725 Method of providing a secondary means of overload protection and leakage current protection in applications using solid state power controllers |
| 09/08/2009 | US7586724 Adaptive current limiter for wireless modem |
| 09/08/2009 | US7586723 Power source fault detection apparatus, program, and method |
| 09/08/2009 | US7586720 Electrostatic discharge protection device |
| 09/08/2009 | US7586719 GFCI failure indicator |
| 09/08/2009 | US7586718 Electrical device with circuit protection component and light |
| 09/08/2009 | US7586292 Low voltage cutoff circuit for an electrochemical cell |
| 09/03/2009 | WO2009108962A2 An electrical power consumption management syste |
| 09/03/2009 | WO2009108920A2 Alternating current overload protection apparatus and method |
| 09/03/2009 | WO2009106188A1 Discharge circuit for high voltage networks |
| 09/03/2009 | WO2009106187A1 Method and device for discharging a high voltage network |
| 09/03/2009 | WO2009072799A3 Power supply apparatus for telecommunication device having surge protection module |
| 09/03/2009 | US20090219661 Power switching circuit |
| 09/03/2009 | US20090219660 Digital interface used in multi-series-parallel battery modules |
| 09/03/2009 | US20090219659 Motor Control Circuit With Malfunction Monitoring |
| 09/03/2009 | US20090219656 High voltage ground fault detection system |
| 09/03/2009 | US20090219655 Method and device for preventing fire caused by defects in electric circuits and arrangements |
| 09/03/2009 | DE102009004649A1 Vorrichtungen und Systeme zur Spannungsbasierten Detektion, Verfizierung und/oder Identifizierung von Gleichtakt-AC-Fehlern Devices and systems for voltage-based detection, Verfizierung and / or identification of common mode errors AC- |
| 09/03/2009 | DE102008011597A1 Trennvorrichtung für einen Leistungshalbleiter und Verfahren zu deren Betreiben, Leistungsmodul und Systemanlage Separating device for a power semiconductor and methods of operation, power module and system installation |
| 09/03/2009 | DE102008009512A1 Versorgung von Hilfsbetrieben in einem Schienenfahrzeug mit elektrischer Energie Supply auxiliary equipment in a rail vehicle with electric power |
| 09/03/2009 | DE102008004870A1 Mit einem Schutzschalter mechanisch koppelbares Modul With a circuit breaker mechanically linkable module |
| 09/03/2009 | DE102007056945A1 Polarity-reversal tolerance circuit for matching polarity of electrical voltages, particularly of direct current voltages, has four field-effect transistors that are arranged between two input connections and two output connection |
| 09/03/2009 | CA2716437A1 Multiple-channel active sensing and switching device |
| 09/02/2009 | EP2096731A2 Opening-and-closing member control device |
| 09/02/2009 | EP2095480A1 Electric installation arrangement and method for the operation of an electric installation arrangement |
| 09/02/2009 | EP2095477A1 Automatic function with selectable fuse rating for single fuses and fuse panels |
| 09/02/2009 | EP1499970B1 System, method and apparatus for data processing and storage to provide continuous operations independent of device failure or disaster |
| 09/02/2009 | EP1384300B1 Monitoring apparatus |
| 09/02/2009 | EP1205015B1 Cvt transient filter |
| 09/02/2009 | EP1105955B1 Circuit for detecting an inadmissibly high current in an output stage |
| 09/02/2009 | CN201303247Y Intelligent high-low-voltage protection controller |
| 09/02/2009 | CN201303246Y Automatic switch-on device of conventional circuit breaker |
| 09/02/2009 | CN101523681A Faulted phase decision method between current and voltage based delta phase selectors |
| 09/02/2009 | CN101523680A Electrical fault restricting system |
| 09/02/2009 | CN101523679A Power supply and electronic ballast with auxiliary protection circuit |
| 09/02/2009 | CN101521977A Voltage testing circuit and CCFL converter system with voltage testing circuit |
| 09/02/2009 | CN101521379A Isolating device for a power semiconductor and method for operation thereof, power module and system installation |
| 09/02/2009 | CN101521373A Device and method for limiting short-circuit current |
| 09/02/2009 | CN101521368A DC protection system combined with DC bus voltage |
| 09/02/2009 | CN100536273C Terminal equipment charging overvoltage protective device and method |
| 09/01/2009 | US7583489 Tungsten shorting stub and method of manufacture |
| 09/01/2009 | US7583486 Semiconductor device having protection diode |
| 09/01/2009 | US7583485 Electrostatic discharge protection circuit for integrated circuits |
| 09/01/2009 | US7583484 Circuit and method for ESD protection |
| 09/01/2009 | US7583060 Protective circuit for a secondary battery pack and method of operating the same |
| 08/27/2009 | WO2009105171A1 Intelligent circuit breaker apparatus and methods |
| 08/27/2009 | WO2009104971A1 Electronic dc circuit breaker |
| 08/27/2009 | US20090213518 Voltage surge protection device comprising selective disconnection means |
| 08/27/2009 | US20090213516 Power distribution bus with protection and alarming |
| 08/27/2009 | US20090213515 Multiple-channel active sensing and switching device |
| 08/27/2009 | US20090213513 Speed controller including a device for protection against overcurrents and overvoltages |
| 08/27/2009 | US20090213512 Over-voltage protection circuit |
| 08/27/2009 | US20090213511 Battery protection circuit and battery device |
| 08/27/2009 | US20090213510 Method and apparatus for detecting and recovering from external electrical disturbances |
| 08/27/2009 | US20090213507 System and method of electrostatic discharge protection for signals at various voltages |
| 08/27/2009 | US20090212967 Circuit Interrupting System with Remote Test And Reset Activation |
| 08/27/2009 | DE102008010624A1 Verfahren und Vorrichtung zum Betreiben einer Schalteinheit Method and apparatus for operating a switch unit |
| 08/27/2009 | CA2715643A1 Intelligent circuit breaker apparatus and methods |
| 08/26/2009 | EP2092623A1 A method and an apparatus for protecting a bus in a three-phase electrical power system |
| 08/26/2009 | EP2092621A2 Fuse and breaker alarm device and method using a finite state machine |
| 08/26/2009 | EP1053585B1 Electrical systems |
| 08/26/2009 | CN201298732Y An intelligent demarcation grounding protection apparatus based on ordinary column circuit breaker |
| 08/26/2009 | CN201298731Y Open-phase protection circuit of three-phase power supply source |
| 08/26/2009 | CN201298730Y Low-voltage protection circuit of quasi-resonance electromagnet water heater |
| 08/26/2009 | CN201298729Y High-voltage impulse protection circuit of quasi-resonance electromagnet water heater |
| 08/26/2009 | CN201298728Y Intelligent monitoring apparatus for electricity safety |
| 08/26/2009 | CN201298634Y Intelligent power socket |
| 08/26/2009 | CN201298521Y 剩余电流动作断路器 Residual current operated circuit breaker |
| 08/26/2009 | CN201298520Y Residual current operated circuit breaker with inverse incoming-line protecting function |
| 08/26/2009 | CN201297446Y Tray type through-cable bridge |
| 08/26/2009 | CN101515712A AC overvoltage protection device |
| 08/26/2009 | CN101515711A Power supply polarity protection circuit |
| 08/26/2009 | CN101515710A Direct current limiting and breaking device based on countercurrent injection method |
| 08/26/2009 | CN101515709A Charge pump of ultralow mismatching phase-locked loop circuit |
| 08/26/2009 | CN101515183A Output overvoltage regulating circuit |
| 08/26/2009 | CN100533939C Apparatus for power conversion in electric rolling stock |
| 08/26/2009 | CN100533905C Method for preventing high tension power line single phase coinciding with permanent fault |
| 08/26/2009 | CN100533903C Insulation diagnostic device |
| 08/26/2009 | CN100533902C A method and an apparatus for supervising the operation of current transformers |
| 08/26/2009 | CN100533901C Electrifying and switching on control method used for creepage protector |
| 08/26/2009 | CN100533900C Electric network state detecting method used for creepage protector |
| 08/26/2009 | CN100533899C GFCI receptacle having plug blocking means |
| 08/26/2009 | CN100533898C Circuit interrupting device and system utilizing bridge contact mechanism and reset lockout |