Patents
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)
05/2013
05/30/2013WO2013076880A1 Power supply circuit
05/30/2013WO2013076377A1 Residual current device
05/30/2013WO2013076375A1 Socket
05/30/2013WO2013075672A1 Power battery assembly and electric vehicle comprising the same
05/30/2013WO2013043005A3 Economical power cable distribution system
05/30/2013US20130135781 Electrical switching apparatus with overvoltage protection
05/30/2013US20130135780 Protective Device with Metering and Oscillography
05/30/2013US20130135778 Automatic reset discrimination system and method for a self powered electronic protection device
05/30/2013US20130135777 Surge protection circuit
05/30/2013CA2792103A1 Electrical switching apparatus with overvoltage protection
05/29/2013EP2596565A2 Continuous uninterruptable ac grounding system for power system protection
05/29/2013EP2596563A2 Photovoltaic bipolar to monopolar source circuit converter with frequency selective grounding
05/29/2013EP2596562A1 Method for operating an output stage in a controller
05/29/2013EP2596561A2 Sensing and control electronics for a power grid protection system
05/29/2013EP2596560A1 Systems and methods for providing arc fault and/or ground fault protection for distributed generation sources
05/29/2013CN202957655U Automatic power supply conversion controller
05/29/2013CN202957605U High power dynamic cutting unit
05/29/2013CN202957594U Power supply lightning protection case and machine room power supply system
05/29/2013CN202957583U Switching power device with alternating current input over-voltage protection function
05/29/2013CN202957576U Temperature protection and alarm device for transformer
05/29/2013CN202957575U Electric leakage breaker
05/29/2013CN202957574U Multifunctional safety electric-leakage protection device in case of false wiring of power source socket
05/29/2013CN202957573U Breaker
05/29/2013CN202957572U RS485 bus hot-swap protection circuit for remote DC supply
05/29/2013CN202957571U Electric leakage detection circuit for single-phase power supply of isolated neutral system
05/29/2013CN1489819B Method for determining time when obtaining current measuring value and protection system for power networks
05/29/2013CN103124066A Short-circuit control for pulse power supply of high current
05/29/2013CN103124065A Electric tool and control method thereof
05/29/2013CN103124063A Arrester overvoltage protection device with variable voltage ratio and implementation method
05/29/2013CN103124062A ATM (automatic teller machine) intermittent running power device protection circuit
05/29/2013CN102386609B Leakage protection device
05/29/2013CN102035183B Protection circuit for switching power supply
05/29/2013CN102013802B BOOST circuit with short circuit protection function
05/29/2013CN101399445B Electric power generation with magnetically geared machine
05/28/2013US8451574 Method and system for through fault detection in electrical devices
05/28/2013US8451573 Overvoltage protection device for a wind turbine and method
05/28/2013US8451572 Protective device with metering and oscillography
05/28/2013US8451571 Overheat protection circuit and power supply integrated circuit
05/28/2013US8451568 Remotely-controllable circuit breaker
05/28/2013CA2507315C Disaster recovery port in a portable computer
05/28/2013CA2358721C Ground fault circuit interrupter
05/23/2013WO2013074602A1 Electrical power distribution systems, smart electricity meters, and methods of controlling local power connection
05/23/2013WO2013074588A1 Smart meters, and systems and method for electrical power reconnection
05/23/2013WO2013074156A1 Triggered arc flash arrester and switchgear system including the same
05/23/2013WO2012126601A3 Photovoltaic system
05/23/2013US20130128405 Automatic thermal shutdown circuit
05/23/2013US20130128404 Overvoltage protection circuit
05/23/2013US20130128403 Delay protection circuit and electronic device employing the same
05/23/2013US20130128397 Bypass capacitors for high voltage bias power in the mid frequency rf range
05/23/2013US20130128396 Current measurement
05/23/2013US20130128395 Short-circuit Detection Circuit and Short-circuit Detection Method
05/23/2013DE102011089204A1 Switch designed as low-voltage circuit breaker, has converter comprising non-magnetic core whose dimensions are equal, so that number of layers and/or windings per layer is increased with increase in switch size
05/22/2013EP2595264A1 Protection relay apparatus
05/22/2013EP2595170A1 Leakage breaker
05/22/2013EP2593952A1 Control arrangement
05/22/2013CN202949618U Electronic ballast with adjustable brightness
05/22/2013CN202949222U Surge protector
05/22/2013CN202949217U Low-voltage protection system of circuit breaker
05/22/2013CN202949212U Built-in anti-creeping protection device of warming water boiler
05/22/2013CN202949211U Electric leakage protector special-purpose manifold block and multistage electric leakage protection system formed thereby
05/22/2013CN202949210U Multi-functional residual-current circuit breaker
05/22/2013CN202949209U Leakage breaker
05/22/2013CN202949208U Voltage-loss protector
05/22/2013CN202949207U 12V voltage monitoring circuit of electric automobile electric drive controller
05/22/2013CN202949206U Voltage control output circuit
05/22/2013CN202949205U Lightning arrester overvoltage protection device with variable voltage ratio
05/22/2013CN202949204U Intelligent fault detecting and elimination system of circuit breaker
05/22/2013CN202949203U Circuit structure applied to motor vehicle electrical appliance
05/22/2013CN202949157U Low-voltage test car
05/22/2013CN103119826A Charging system for electric vehicle and charging control method
05/22/2013CN103119815A Method and system for disconnecting a generator from a power system
05/22/2013CN103117539A Self-balanced electromagnetic electronic fault current limiter
05/22/2013CN103117530A Power on and power off self-locking protective device for power supply
05/22/2013CN103117529A Mine intrinsic safety type portable detection robot body driving device
05/22/2013CN103117528A Series capacitor type high-voltage direct current breaker and control method thereof
05/22/2013CN103114797A Anti-theft warning rolling door
05/22/2013CN101902126B Power supply device for sputter ion pumps
05/22/2013CN101795067B 恒压电路 Constant-voltage circuit
05/22/2013CN101523680B Electrical fault restricting system
05/21/2013US8446703 Surge arrester with a cage design
05/21/2013US8446701 Single-phase transient voltage suppression circuit
05/21/2013US8446700 Overcurrent protection in a dimmer circuit
05/21/2013US8446699 Residual current device having voltage dependent and voltage independent modes of operation
05/21/2013US8446151 Protective device
05/16/2013WO2013069181A1 Protection control system, protection control devices, and merging unit
05/16/2013WO2013069180A1 Protection control system and merging unit
05/16/2013WO2013067729A2 Method of electricity leakage detection and prevention of electrical equipment's outer surface and system thereof
05/16/2013US20130120889 Proximity detection circuit having short protection
05/16/2013US20130120888 Current differential replay apparatus
05/16/2013US20130120887 Protection device for lithium battery assembly
05/16/2013US20130120883 Battery charger for an electrically-driven vehicle and method of confirming earth leakage applicable thereto
05/16/2013US20130120882 Ultra-low sensitivity ground fault circuit interrupter
05/16/2013US20130119955 High Voltage SEPIC Converter
05/16/2013US20130119895 Led driving circuit and driving controller for controlling the same
05/16/2013DE102012219717A1 Method for protecting output stage of electric motor from overcurrent, for actuating clutch of dual clutch transmission in motor car, involves switching-off output stage when actual current value exceeds predetermined threshold value
05/16/2013DE102011056577B3 Schaltungsanordnung zur Unterdrückung eines bei einem Schaltvorgang auftretenden Lichtbogens Circuit arrangement for the suppression of an electric arc occurring during a switching operation
05/16/2013CA2853175A1 Method of electricity leakage detection and prevention of electrical equipment's outer surface and system thereof
05/15/2013EP2591529A1 Secondary thermal sensor for primary conductors
05/15/2013EP2591373A1 Fast distance protection for energy supply networks
05/15/2013CN202940576U Current overload protection device for circuit breakers
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