| 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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| 08/26/2009 | CN100533897C Apparatus for high surge voltage protection |
| 08/26/2009 | CN100533161C Method and apparatus for identifying intermittent earth fault |
| 08/25/2009 | US7580232 Arc detection system and method |
| 08/25/2009 | US7579963 Electronic protection devices for circuit-breakers and corresponding programming method |
| 08/25/2009 | US7579802 Collision monitoring system |
| 08/25/2009 | CA2482797C Protective relay with synchronized phasor measurement capability for use in electric power systems |
| 08/20/2009 | WO2009102456A2 Output driver with overvoltage protection |
| 08/20/2009 | WO2009101463A1 A standalone self-supplied numeric controlled relay |
| 08/20/2009 | WO2009100470A1 Fault current circuit breaker |
| 08/20/2009 | US20090207544 Output driver with overvoltage protection |
| 08/20/2009 | US20090207543 System and method for fault detection and hazard prevention in photovoltaic source and output circuits |
| 08/20/2009 | US20090207536 Method and apparatus for measuring dc current in an ac generator |
| 08/20/2009 | US20090207535 Arc fault detector |
| 08/20/2009 | US20090206680 Apparatus for Suppressing Mid-Frequency Noise in an Integrated Circuit Having Multiple Voltage Islands |
| 08/20/2009 | CA2714967A1 A residual-current circuit breaker |
| 08/19/2009 | EP1829216B1 Power switching apparatus with open-load detection |
| 08/19/2009 | EP1066671B1 Electrical protection systems |
| 08/19/2009 | CN201294393Y Overvoltage protection circuit for charging circuit system and charging circuit with overvoltage protection function |
| 08/19/2009 | CN201294391Y Intrinsic safe power supply for colliery downhole equipment |
| 08/19/2009 | CN201294370Y Intelligent control protection and management device |
| 08/19/2009 | CN201294368Y Demarcation breaker for vector-synthesis zero sequence current |
| 08/19/2009 | CN201294367Y Electronic trip device of lightning protection device |
| 08/19/2009 | CN201294366Y Creepage protector combining with power-supply plug |
| 08/19/2009 | CN201294201Y Novel circuit breaker |
| 08/19/2009 | CN201293932Y Multifunctional mongline power supply control circuit |
| 08/19/2009 | CN201293809Y Automatic balancing and adjusting device for three-phase multipath current for temperature test |
| 08/19/2009 | CN101512861A Method and differential protection device for generating fault signal for displaying fault of current transformer secondary circuit |
| 08/19/2009 | CN101510680A Zero-phase current differential relay |
| 08/19/2009 | CN101510541A Method and apparatus for ESD protection |
| 08/19/2009 | CN100530892C Method for sampling, controlling and transmitting data synchronously |
| 08/19/2009 | CN100530880C An automatic reset for current leakage protection |
| 08/19/2009 | CN100530879C Differential protection device with simplified protection parameter adjustment means |
| 08/19/2009 | CN100530878C Inverter bridge, system containing the same and method for locating switch thereof |
| 08/19/2009 | CN100530877C Novel fault protection process for intelligent circuit breakers |
| 08/19/2009 | CN100530876C Usb circuit device for preventing reverse current from external device |
| 08/19/2009 | CN100530875C Electric equipment protecting means |
| 08/19/2009 | CN100530874C Dual core intelligent communication control for plastic shell low voltage breaker |
| 08/18/2009 | US7577946 Program product, method, and system for testing consistency of machine code files and source files |
| 08/18/2009 | US7577871 Computer system and method having isolatable storage for enhanced immunity to viral and malicious code infection |
| 08/18/2009 | US7576964 Overvoltage protection circuit of output MOS transistor |
| 08/18/2009 | US7576963 Circuit protection system |
| 08/18/2009 | US7576962 Transient blocking apparatus with reset |
| 08/18/2009 | US7576960 Circuit protection device with automatic monitoring of operation fault |
| 08/18/2009 | US7576959 Circuit interrupting device with automatic end-of-life test |
| 08/18/2009 | US7576957 Circuit interrupter including point-on-wave controller and voltage sensors |
| 08/18/2009 | US7576449 Method for converting direct voltage into three-phase alternating voltage |
| 08/13/2009 | DE10302426B4 Vorrichtung zum Detektieren von Hindernissen für Fenster mit elektrisch reguliertem Scheibenheber Device for detecting obstacles for windows with electrically regulated power window |
| 08/13/2009 | DE102008007996A1 Electrical system i.e. low voltage electrical system, for motor vehicle, has control logic unit controlling switch for short-circuiting of potential lines, when pole inversion occurs at connection poles and/or at voltage potential lines |
| 08/12/2009 | EP2088659A1 Electric line protection system for determining the direction in which a fault arises |
| 08/12/2009 | EP2087569A2 Adaptive relaying controlled by autonomous event detection |
| 08/12/2009 | EP1695248A4 High level arc fault detector |
| 08/12/2009 | CN201290022Y Charging hubs for mobile terminal |
| 08/12/2009 | CN201290005Y Integrated protector for electric appliance |
| 08/12/2009 | CN201290002Y Surge induction device and electronic equipment |
| 08/12/2009 | CN201290001Y Emergency current failure loop with undervoltage thread-losing safety design |
| 08/12/2009 | CN201290000Y Full-automatic intelligent lightning protection ultra-undervoltage protector |
| 08/12/2009 | CN101507072A Ground fault detection |
| 08/12/2009 | CN101506668A Method for sampling a current or voltage profile and for forming sampling values, in particular for use in protection and control devices for energy transmission systems |
| 08/12/2009 | CN101505093A Multipath output electrical power suitable for space environment |
| 08/12/2009 | CN101505056A Peak current limiting apparatus |
| 08/12/2009 | CN101505053A User demarcation circuit breaker set apparatus and protection method |
| 08/12/2009 | CN101505049A Protection apparatus and detection method for AC circuit open loop |
| 08/12/2009 | CN101505048A Apparatus for circuit break while door closing |
| 08/12/2009 | CN101504898A Permanent magnet contactor control apparatus having auxiliary contacts |
| 08/12/2009 | CN100526888C Differential current measuring apparatus, tripping device and switchgear |
| 08/12/2009 | CN100526738C Apparatus and method for detecting phase state |
| 08/11/2009 | US7573693 Safety switching device and method for failsafe shutdown of an electric load |
| 08/11/2009 | US7573692 Protective device with improved surge protection |
| 08/11/2009 | US7573691 Electrical over stress robustness |
| 08/11/2009 | US7573689 Overcurrent detecting circuit and regulator having the same |
| 08/11/2009 | US7573687 Power semiconductor device |
| 08/11/2009 | US7573393 Integrated fault output/fault response delay circuit |
| 08/11/2009 | US7573251 AC-to-DC voltage regulator |
| 08/11/2009 | US7573007 Power supply, image forming apparatus, and electric current supply method |
| 08/10/2009 | CA2596369A1 Systems and methods for distributed series compensation of power lines using passive devices |
| 08/06/2009 | WO2009096815A1 Connection sensor for identifying the port of a plugboard |
| 08/06/2009 | WO2009095774A1 Manually selectable instantaneous current settings for a trip unit and electrical switching apparatus including the same |
| 08/06/2009 | WO2009095304A1 Fault current circuit breaker and method for carrying out a self-test of a fault current circuit breaker |
| 08/06/2009 | WO2009095040A1 Distance protection and method for monitoring an electrical power transmission line |
| 08/06/2009 | US20090195955 Buoyant grounding terminal electrode apparatus for lightning protection |
| 08/06/2009 | US20090195953 Power IC with an over-current protection circuit and method thereof |
| 08/06/2009 | US20090195952 Method and Apparatus for Protecting Against Reverse Current Flow |
| 08/06/2009 | US20090195081 Protective circuit |
| 08/06/2009 | DE102008005687A1 Steuereinrichtung zum sicheren Wiedereinschalten eines Fehlerstromschutzschalters Control means for safe reconnection of a residual current circuit breaker |
| 08/06/2009 | CA2713270A1 Manually selectable instantaneous current settings for a trip unit and electrical switching apparatus including the same |
| 08/05/2009 | EP2084799A1 Faulted phase decision method between current and voltage based delta phase selectors |
| 08/05/2009 | EP2084798A1 Load compensation in distance protection of a three-phase power transmission line |
| 08/05/2009 | CN201286010Y Combined motor control apparatus |
| 08/05/2009 | CN201286007Y Residual current protecting relay |
| 08/05/2009 | CN201286006Y Electric appliance shared microcontroller embedded chip capable of differentiate multiple kinds of shockproof wall |
| 08/05/2009 | CN201285947Y Energy-saving socket for electromagnetic stove |
| 08/05/2009 | CN101499676A Vehicular power cell diagnosis method and alarm thereof |
| 08/05/2009 | CN101499655A Neutral point grounding resistor plant for electrical power system |
| 08/05/2009 | CN101499652A Bridge type superconductive failure current limiter without harmonic distortion |
| 08/05/2009 | CN101499644A Under-voltage protection circuit with low starting current |
| 08/05/2009 | CN101499643A Over-voltage protection circuit |
| 08/05/2009 | CN101499642A Intelligent safety protection electric control apparatus |
| 08/05/2009 | CN101499641A Surging resistant high voltage protection circuit |
| 08/05/2009 | CN101499640A DC electric power protection apparatus and operation method thereof |
| 08/05/2009 | CN101499639A Relay protection and measurement integrated apparatus with multiple communication interfaces integrated |