| 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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| 06/02/2009 | US7542255 Input protection circuit |
| 06/02/2009 | US7542252 Circuit interrupting device having integrated enhanced RFI suppression |
| 06/02/2009 | CA2452375C Voltage and current source selection system for use in the protection, automation and control of an electric power system |
| 05/30/2009 | CA2645469A1 Gfci with miswire protection having unitary receptacle and load conductors after proper installation |
| 05/28/2009 | WO2009065999A1 Limitation of the loading of a power source |
| 05/28/2009 | US20090135534 Semiconductor integrated circuit |
| 05/28/2009 | US20090134832 Dynamo-electrical machine having a temperature detection measurement system |
| 05/28/2009 | DE102008058171A1 Electrical appliance e.g. drill, has switching arrangement with over current mechanism, where electrical voltage line to electric motor is interrupted by over current mechanism when error occurs in arrangement |
| 05/27/2009 | EP2063513A1 Overload alarm device and method thereof |
| 05/27/2009 | EP2062340A1 Electrical fault restricting system |
| 05/27/2009 | CN201248101Y Protection device for light display back projection TV |
| 05/27/2009 | CN201248022Y Electric tool with motor control module |
| 05/27/2009 | CN201248011Y Power supply system for caravan |
| 05/27/2009 | CN201247946Y Under-voltage protection circuit and switch power circuit |
| 05/27/2009 | CN201247945Y 过电压保护装置 Overvoltage protection device |
| 05/27/2009 | CN201247944Y Chopping voltage-limiting power-supply circuit |
| 05/27/2009 | CN201247773Y Protection circuit for novel power tube |
| 05/27/2009 | CN201247746Y Multifunctional instant consumption mechanical switch |
| 05/27/2009 | CN201247266Y High-/low-voltage isolation device |
| 05/27/2009 | CN101442271A Dc-ac converter substrate with voltage abnormal detection circuit |
| 05/27/2009 | CN101442266A Soft rock electrochemical stabilization DC power supply device |
| 05/27/2009 | CN101442201A Tripping interface, module for protection against voltage surges and device for protection against voltage surges |
| 05/27/2009 | CN101442200A Self-power digital overcurrent relay |
| 05/27/2009 | CN101442199A Electronic breaker |
| 05/27/2009 | CN101441242A Method for detecting failure current cutting-off time when electric power system out of order |
| 05/27/2009 | CN100492834C Converter circuit with short-circuit lurrent protections |
| 05/27/2009 | CN100492798C Compressor assembly and cooling system |
| 05/27/2009 | CN100492797C Waveform sine principle based transformer excitation flow recognition method |
| 05/27/2009 | CN100492796C Creepage circuit breaker |
| 05/27/2009 | CN100492795C Method for judgement of converter transformer grounding on valve side |
| 05/27/2009 | CN100492794C Power transmission and distribution system of leakage for earth capicitance storage charge and system control method |
| 05/27/2009 | CN100492793C Circuit interrupting device and system utilizing electromechanical reset |
| 05/26/2009 | US7539002 Self-disengaging wearable grounding device |
| 05/26/2009 | US7538999 Semiconductor device having electrostatic protection circuit |
| 05/26/2009 | US7538998 Electrostatic discharge protection circuit |
| 05/26/2009 | US7538995 Semiconductor integrated circuit device |
| 05/26/2009 | US7538994 GFCI that cannot be reset unit wired correctly on line side and power is applied |
| 05/26/2009 | US7538993 Receptacle circuit interrupting devices providing an end of life test controlled by test button |
| 05/26/2009 | US7538991 Half wave expulsion (non-fault current limiting) type superconducting fault current limiter having integral high speed switch module |
| 05/26/2009 | US7538990 High voltage DC contactor hybrid without a DC arc break |
| 05/26/2009 | US7538519 Information handling system with battery protected from non-permanent failures |
| 05/26/2009 | CA2280378C Arrangements to detect and respond to disturbances in electrical power systems |
| 05/22/2009 | WO2009062600A1 Short-circuit limiting apparatus in a low-voltage installation |
| 05/22/2009 | WO2009062535A1 Method and arrangement for protecting, controlling or monitoring an electrical switchgear or power supply station |
| 05/22/2009 | WO2009034417A3 Configuration tool and system for an intelligent electronic device (protective relay) |
| 05/22/2009 | CA2705918A1 Short-circuit limiting apparatus in a low-voltage installation |
| 05/21/2009 | US20090128977 Method to protect Ethernet connected products |
| 05/21/2009 | US20090128976 Energy Pathway Arrangements for Energy Conditioning |
| 05/21/2009 | US20090128973 Power supply control circuit including overvoltage protection circuit |
| 05/21/2009 | US20090128972 Three-phase detection module |
| 05/21/2009 | US20090127582 Semiconductor apparatus including a radiator for diffusing the heat generated therein |
| 05/20/2009 | EP2061148A1 Protection of variable frequency power systems from excessive peak electrical potentials |
| 05/20/2009 | EP1402420B1 Mirroring network data to establish virtual storage area network |
| 05/20/2009 | CN201243194Y Electronic type zero residual voltage residual current motion protector |
| 05/20/2009 | CN201243193Y Low-voltage electric network residual current control monitoring type protector |
| 05/20/2009 | CN201243192Y Solar battery power supply drive protection circuit for low power DC load |
| 05/20/2009 | CN201243191Y Large-capacity high-speed current-limiting switch device |
| 05/20/2009 | CN201243190Y Electricity-saving protection device |
| 05/20/2009 | CN201243140Y Novel leakage protection socket |
| 05/20/2009 | CN201243134Y Single-phase intelligent power switch/socket case |
| 05/20/2009 | CN201241586Y Solar multifunctional window |
| 05/20/2009 | CN101436771A Power supply under-voltage protection circuit and power supply containing the same |
| 05/20/2009 | CN101436770A Treatment of overvoltage circuit signal |
| 05/20/2009 | CN101436496A Multifunctional electric leakage circuit breaker |
| 05/20/2009 | CN100490269C Resistance output circuit |
| 05/20/2009 | CN100490266C System for power transformer differential protection |
| 05/20/2009 | CN100490265C Electric current driving electronic broken circuit protecting equipment |
| 05/19/2009 | US7536598 Computer system capable of supporting a plurality of independent computing environments |
| 05/19/2009 | US7536569 System and method for managing power provided to a portable information handling system |
| 05/19/2009 | US7536284 Electrical wire interconnect system risk assessment tool |
| 05/19/2009 | US7535911 System and method for determining the physical topology of a network having multiple subnets |
| 05/19/2009 | US7535739 Semiconductor switch |
| 05/19/2009 | US7535692 Multilevel structured surfaces |
| 05/19/2009 | US7535690 Arrangement and method for an integrated protection for a power system |
| 05/19/2009 | US7535687 Alarm system sensor topology apparatus and method |
| 05/19/2009 | US7535686 Control of circuit breakers in a multi-phase power system |
| 05/19/2009 | US7535234 ARC fault detector |
| 05/19/2009 | CA2291461C Residential load center with arcing fault protection |
| 05/14/2009 | WO2009062206A1 Demand control unit |
| 05/14/2009 | WO2009059912A1 Electronic protection device against earth leakage currents and related detection procedure |
| 05/14/2009 | WO2009040554A3 Power control apparatus |
| 05/14/2009 | WO2008046068A9 System and method for detection of multiple current limits |
| 05/14/2009 | WO2006033966A3 Energy savings device and method for a resistive and/or an inductive load and/or a capacitive load |
| 05/14/2009 | US20090122456 Common gate connected high voltage transient blocking unit |
| 05/14/2009 | US20090122453 Universal rating plug for electronic trip unit |
| 05/14/2009 | DE102007052847A1 Inverse polarity protection circuit for external starting pin in motor vehicle, comprises two switching elements, which are arranged between on-board power supply of motor vehicle and external starting pin |
| 05/14/2009 | DE102007036680B4 Schaltungsvorrichtung zur Erkennung einer unterbrochenen Masseleitung Circuit device for detecting a broken ground wire |
| 05/13/2009 | EP2057726A1 Differential protection method and differential protection unit |
| 05/13/2009 | EP2057725A1 Protection circuit apparatus |
| 05/13/2009 | EP1105958B1 A monitor circuit for a current limiting device |
| 05/13/2009 | CN201238194Y Surge protector of field data acquisition equipment |
| 05/13/2009 | CN201238190Y Earth leakage circuit breaker for zero wire break |
| 05/13/2009 | CN201238189Y Electromagnetic overload protection electronic control apparatus of miniature circuit breaker |
| 05/13/2009 | CN201238141Y Drain current protection device |
| 05/13/2009 | CN201237745Y Temperature control cabinet of heating stove |
| 05/13/2009 | CN101432941A Load compensation in distance protection of three-phase electric power line |
| 05/13/2009 | CN101431227A Digital creepage detection monitoring apparatus |
| 05/13/2009 | CN101431226A Power supply protection circuit |
| 05/13/2009 | CN101431203A Omnipotence safety plug |
| 05/13/2009 | CN100487996C User operating blocking-up device |