Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
08/2012
08/22/2012CN101490920B Gfci with self-test and remote annunciation capabilities and testing method thereof
08/22/2012CN101488656B Methods for common mode voltage-based AC fault detection, verification and/or identification
08/22/2012CN101292406B Circuit interrupting device with automatic test
08/21/2012US8248747 Protection for bi-directional switch
08/21/2012US8248746 Semiconductor device including a bootstrap diode, high side power drive circuit, low side power drive circuit, and control circuit for controlling a high side power device and low side power device
08/21/2012US8248745 Electrical over/under voltage automatic disconnect apparatus and method
08/21/2012US8248744 Voltage detecting apparatus
08/21/2012US8248743 Device having failure recovery capabilities and a method for failure recovery
08/21/2012US8248741 Apparatuses and methods for a SCR-based clamped electrostatic discharge protection device
08/21/2012US8248740 High speed current shunt
08/21/2012US8248738 Switching device, high power supply system and methods for switching high power
08/21/2012US8248192 Pulse activated magnetic trip/reset mechanism for a ground fault circuit interrupter
08/21/2012US8246770 Copper grid repair technique for lightning strike protection
08/21/2012CA2686750C Power switch for preventing accidental arcs
08/16/2012US20120206848 Pluggable surge protection system
08/16/2012US20120206847 Electronic circuit breaker of a power supply having dual output ports
08/16/2012US20120206846 Overvoltage protection circuit and semiconductor integrated circuit
08/16/2012US20120206845 pass gate off isolation
08/16/2012US20120206110 Reverse current prevention circuit, charging circuit incorporating reverse current prevention circuit, and constant-voltage circuit incorporating reverse current prevention circuit
08/16/2012DE102011004215A1 Ladevorrichtung für Kraftfahrzeuge sowie Verfahren zum Laden eines Speichers für elektrische Ladung in einem Kraftfahrzeug Loading device for motor vehicles and method for loading a memory for electric charge in a motor vehicle
08/15/2012EP2487766A1 Method and apparatus for detecting earth fault
08/15/2012EP1989440B1 Energy supply for a blade adjustment device pertaining to a wind energy installation
08/15/2012EP1344291B1 An improved digital protection and control device and method thereof
08/15/2012CN202385339U Led灯照明电路 Led lighting circuit
08/15/2012CN202385328U Alternating current LED illuminating lamp capacitor transformation short circuit protective circuit
08/15/2012CN202385327U Alternating current multi-section voltage limiting short circuit protective LED illuminating lamp circuit
08/15/2012CN202385007U Electronic transformer with overload protecting function
08/15/2012CN202384851U Novel current induction power supply system
08/15/2012CN202384752U Switching power supply overcurrent protection circuit
08/15/2012CN202384746U Overload protecting device of portable generator set with small power section
08/15/2012CN202384741U Voltage detection type electricity leakage protection device for electric water heater
08/15/2012CN202384740U Overvoltage-undervoltage protection switch with automatic switch-on function
08/15/2012CN202384739U Surge protection device
08/15/2012CN102638204A Fan double power electromagnetic starter with instant power down self-recovery function
08/15/2012CN102638098A Telecontrol switching reclosing automation system
08/15/2012CN102638024A Neutral line break protector
08/15/2012CN102636705A Device for judging fault of remote leakage protector and blockage or fault of alternating current contactor, and analysis method thereof
08/15/2012CN101860007B Remote intelligent residual current monitoring and protection system
08/14/2012US8243479 On-die anti-resonance structure for integrated circuit
08/14/2012US8243410 Transient voltage compensation system and method
08/14/2012US8243409 Protective device and method for its operation
08/14/2012US8243408 Apparatus and method for preventing reverse power flow of over current relay
08/14/2012US8243407 Semiconductor switch control device
08/14/2012US8243406 ESD protection device and composite electronic component of the same
08/14/2012US8243405 Circuit, integrated circuit and method for dissipating heat from an inductive load
08/14/2012US8243404 ESD protection circuit with merged triggering mechanism
08/14/2012US8243403 Electrostatic discharge clamp circuit
08/14/2012US8243402 Plug tail systems
08/09/2012WO2012104703A1 Power feeding control device
08/09/2012WO2012104377A1 Vacuum bulb system comprising a locking means
08/09/2012US20120200979 Overvoltage protection system for wireless communication systems
08/09/2012US20120200976 Surge protection device
08/09/2012US20120200975 Low forward voltage drop transient voltage suppressor and method of fabricating
08/09/2012US20120200974 Electronic control device including interrupt wire
08/09/2012US20120200972 Electronic control device including interrrupt wire
08/09/2012US20120200969 Resistive Element, Infrared Light Sensor, and Electrical Device
08/09/2012US20120200968 Battery Charge Protection System
08/09/2012US20120200967 Integrated overdrive and overvoltage protection device
08/09/2012US20120200966 Protection system for an electrical power network
08/08/2012EP2485354A1 Protection system for an electrical power network based on the inductance of a network section
08/08/2012EP2483983A2 System and method for polyphase ground-fault circuit-interrupters
08/08/2012EP2483982A1 Method of high impedance groundfault detection for differential protection of overhead transmission lines
08/08/2012CN202374534U Alternative current light emitting diode structure with overload protection unit
08/08/2012CN202373968U Protecting circuit for H bridge module
08/08/2012CN202373963U Constant power module capable of preventing galloping of constant power type motors
08/08/2012CN202373962U Open-phase protector
08/08/2012CN202373961U Three-phase appliance protection device based on leakage relay
08/08/2012CN202373960U Electric leakage protector
08/08/2012CN202373959U Automatic alarm lightning-protection over-voltage and under-voltage protector
08/08/2012CN202373958U Over/under voltage protection circuit
08/08/2012CN202373957U Over-voltage and under-voltage protection circuit
08/08/2012CN202373956U Leakage protection device for mine channel power device
08/08/2012CN202373955U Adjustable current limiting protective circuit in DC loop
08/08/2012CN202373954U Device for protecting analog signal conditioning board
08/08/2012CN202373953U Overload protection device for electric apparatus
08/08/2012CN202373952U Accurately-adjustable over-load protection master control circuit board
08/08/2012CN202373951U Intelligent integrated fast protection switch device
08/08/2012CN202373805U Electricity-saving protecting device of internet of things
08/08/2012CN102629835A Inverter
08/08/2012CN102629755A Power transmission line backup protection method based on wide area information
08/08/2012CN102629753A Externally hung capacitor discharging device special for explosion-proof elevator frequency converter
08/08/2012CN102629752A Fuse signal generator
08/08/2012CN102629751A Over-current protection circuit
08/08/2012CN102629750A Prevention of safety hazards due to leakage current
08/08/2012CN101924353B Overcurrent electronic protection module for high-voltage integrated gate commutated thyristor (IGCT) and short-circuit current protection method
08/07/2012US8238066 Current sensor for earth leakage module
08/07/2012CA2488759C Isolator/circuit-breaker device for electric substations
08/07/2012CA2387811C Improved restraint-type differential relay
08/07/2012CA2340397C A monitor circuit for a current limiting device
08/02/2012WO2012101347A1 Device for detecting an earth connection fault of an electrical connector system
08/02/2012WO2012100683A1 Constant current led lighting circuit with high power factor
08/02/2012WO2012075305A3 Dual-comparator restricted earth fault protection
08/02/2012WO2012056287A3 A protection relay for sensitive earth fault prtection
08/02/2012US20120195078 Prevention of safety hazards due to leakage current
08/02/2012US20120194959 Electronic device with surge suppression unit
08/02/2012US20120194956 Surge protector
08/02/2012US20120194955 Supply voltage monitor
08/02/2012US20120194954 Conduction breaking device
08/02/2012US20120194951 Disconnect mechanism in a power receptacle with ground-fault circuit interruption functions
08/02/2012US20120194950 Electrical installation arrangement
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