| 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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| 02/20/2013 | CN102107697B Wide-voltage electric vehicle anti-theft apparatus with short-circuit protection and working method |
| 02/20/2013 | CN101641849B Fuse saving power distribution system fault protection |
| 02/20/2013 | CN101346864B Linear low capacitance overvoltage protection circuit |
| 02/19/2013 | US8381182 Approaches for meeting SMI duration limits by time slicing SMI handlers |
| 02/19/2013 | US8379419 Soft-stop overvoltage protection circuit for power factor correction type switching power supply unit |
| 02/19/2013 | US8379361 Power supply system and method |
| 02/19/2013 | US8379358 Motor control circuit |
| 02/19/2013 | US8379357 Resistance determining system for over voltage protection circuit |
| 02/19/2013 | US8379356 Overvoltage protection device and its fabrication |
| 02/19/2013 | US8379355 System and method for detecting the presence of an unsafe line condition in a disconnected power meter |
| 02/19/2013 | US8379353 Method for detecting earth-fault conditions in a motor controller |
| 02/19/2013 | US8378637 Self-discharge circuit for secondary battery, and secondary battery including the same |
| 02/19/2013 | US8378611 Computer fan alarm circuit |
| 02/19/2013 | CA2498686C End-user electrical load controller |
| 02/14/2013 | WO2013022755A1 Solenoid operated circuit |
| 02/14/2013 | WO2013022572A1 Insulated arc flash arrester |
| 02/14/2013 | WO2013020274A1 Safe quick-break leakage protector |
| 02/14/2013 | US20130038972 Battery power management system and method |
| 02/14/2013 | US20130038971 Arc fault detector for ac or dc installations |
| 02/14/2013 | US20130038969 Electrical Wiring Device |
| 02/14/2013 | US20130038968 Receptacle type ground fault circuit interrupter with reverse wire protection |
| 02/14/2013 | US20130038128 Electronic circuit and mobile terminal device using the same |
| 02/13/2013 | EP2556574A2 Arc fault circuit detection methods, systems, and apparatus including delay |
| 02/13/2013 | CN202737453U Overvoltage protection circuit for coal mine power center |
| 02/13/2013 | CN202737440U Leakage protection circuit for coal mine power center |
| 02/13/2013 | CN202737439U Electric leakage monitoring chip of electric leakage protector |
| 02/13/2013 | CN202737438U Residual current protective device for anti-ground line live-line protection system |
| 02/13/2013 | CN202737437U Phase failure protection circuit used for three-phase low pressure alternating current power source |
| 02/13/2013 | CN202737436U Lightning protection and grounding protection device |
| 02/13/2013 | CN202737435U Overvoltage protection circuit and power supply module |
| 02/13/2013 | CN202737434U 10kV ultrahigh speed short-circuit current interrupter |
| 02/13/2013 | CN202737433U Over-current protection self-recovery current/voltage test signal converter |
| 02/13/2013 | CN202737293U Wind power generator grounding carbon brush device equipped with alarm |
| 02/13/2013 | CN202736448U Lattice type VFD display screen protective circuit |
| 02/13/2013 | CN202724532U Vehicle line protection and fire protection system |
| 02/13/2013 | CN102934308A Arc fault circuit detection methods, systems, and apparatus including delay |
| 02/13/2013 | CN102931644A Regional power grid fault isolation and recovery method |
| 02/13/2013 | CN102931642A Low-voltage frequency converter with over-current protection function and over-current protection method for low-voltage frequency converter |
| 02/13/2013 | CN102931638A Transformer temperature protection and alarm device |
| 02/13/2013 | CN102931636A Manually-reset overload overtemperature early-warning protection device |
| 02/13/2013 | CN102931634A Multifunctional circuit breaker |
| 02/13/2013 | CN102931633A Leakage protection circuit with real-time failure display function |
| 02/13/2013 | CN102931632A Current leakage protection circuit with working status display and real-time fault display functions |
| 02/13/2013 | CN102931631A Output earth leakage protection device for high-voltage and direct-current power supply system |
| 02/13/2013 | CN102931630A Overvoltage and overcurrent protection circuit with state holding function |
| 02/13/2013 | CN102931629A Quick relay protection method and circuit for current type transmitting signal input channel |
| 02/13/2013 | CN102931628A Protection circuit suitable for initiating explosive device on two-stage ignition bomb |
| 02/13/2013 | CN102931627A Protecting circuit and protecting method |
| 02/13/2013 | CN102931626A Circuit capable of protecting fuse-type disconnecting switch in rural distribution network |
| 02/13/2013 | CN102931625A Online state maintenance intelligent decision analysis device used for relay protection device, and signal processing method and application thereof |
| 02/13/2013 | CN102931032A Low-voltage AC/DC control and protection electrical appliance |
| 02/13/2013 | CN101902027B Arc striking type mixing current limiting fuse |
| 02/13/2013 | CN101800417B Method and apparatus for conditional response to a fault condition in a switching power supply |
| 02/13/2013 | CN101771263B Residual current circuit breaker (rccb) and a method for setting the sensitivity current |
| 02/13/2013 | CN101567510B Novel electric leakage protection socket |
| 02/13/2013 | CN101562302B Novel earth leakage protection socket |
| 02/13/2013 | CN101325327B Intelligent load-limiting breaker with auto-reclosing |
| 02/12/2013 | US8373958 Combined power meter and outlet device |
| 02/12/2013 | US8373957 Load driving circuit and protection method |
| 02/12/2013 | US8373956 Low leakage electrostatic discharge protection circuit |
| 02/12/2013 | US8373955 Electrostatic discharge protection devices |
| 02/12/2013 | US8373952 Integrated DC link inductor and common mode current sensor winding |
| 02/12/2013 | US8373950 Ground fault detecting system and electric vehicle with ground fault detecting system |
| 02/12/2013 | US8373392 Battery system and protection apparatus thereof |
| 02/12/2013 | CA2488446C Method and apparatus to independently control contactors in a multiple contactor configuration |
| 02/07/2013 | WO2013018795A1 Ground fault detection device, ground fault detection method, solar energy system, and ground fault detection program |
| 02/07/2013 | US20130033909 Circiut and method for protecting a controllable power switch |
| 02/07/2013 | US20130033795 Lightning proof device for filter |
| 02/07/2013 | US20130033793 Battery System |
| 02/07/2013 | US20130033792 Protection circuit for digital integrated chip |
| 02/07/2013 | US20130033791 Failsafe galvanic isolation barrier |
| 02/07/2013 | US20130033790 Heat generation amount estimation unit for battery for electric power tool, and apparatus for electric power tool |
| 02/07/2013 | US20130033789 Adaptive power management system for aircraft galleys |
| 02/07/2013 | DE102011109537A1 Umrichtersystem mit Überwachungseinrichtung, Antrieb und Fahrzeug Converter system with monitoring device, driving and vehicle |
| 02/07/2013 | DE102011080523A1 Störlichtbogenschutzschalter mit Überspannungsschutz Störlichtbogenschutzschalter with surge protection |
| 02/06/2013 | EP2555367A1 Arc fault protective circuit with excess voltage protection |
| 02/06/2013 | EP2555004A1 Supply voltage monitor |
| 02/06/2013 | EP2553786A1 A method for transfer of control between devices in a substation system and a device thereof |
| 02/06/2013 | EP2552738A2 Method and arrangement of electrical conductors for charging a vehicle battery |
| 02/06/2013 | CN202721442U Heat pump with protective device |
| 02/06/2013 | CN202721438U Circuit breaker coil protector |
| 02/06/2013 | CN202721436U Inverter output end high voltage discharge protection circuit |
| 02/06/2013 | CN202721433U Leakage protection and power supply recovery apparatus |
| 02/06/2013 | CN202721432U Input undervoltage protection circuit |
| 02/06/2013 | CN202721431U Intelligent rapid breaking device specially used in oil field |
| 02/06/2013 | CN202721430U Power supply over-current protection circuit |
| 02/06/2013 | CN102918732A Line protection systems |
| 02/06/2013 | CN102916419A Power supply surging protector with automatic arc breakage device and protection method for same |
| 02/06/2013 | CN102916409A Voltage-time type feeder automation running method based on parameter adjustment |
| 02/06/2013 | CN102916406A Self-adaption braking method for regional networked differential protection |
| 02/06/2013 | CN102916389A Electric wire protection device |
| 02/06/2013 | CN102916388A Supply voltage monitor |
| 02/06/2013 | CN102916387A Protection circuit for multi-port POE (power over Ethernet) power supply output shunt |
| 02/06/2013 | CN102916386A Failsafe galvanic isolation barrier |
| 02/06/2013 | CN102916385A Instrument testing protective device |
| 02/06/2013 | CN102916384A Photovoltaic fire safety controller |
| 02/06/2013 | CN101674024B Direct-current power supply circuit |
| 02/06/2013 | CN101595614B Electric installation arrangement and method for the operation of an electric installation arrangement |
| 02/05/2013 | US8370166 Script-based information retrieval |
| 02/05/2013 | US8369058 Compact secondary substation comprising a fault protection system, a method for fault protection in a compact secondary substation, and a control unit for performing the method |