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)
12/2012
12/26/2012CN102842881A Grounding protection device and thin film battery generating device based on grounding protection device
12/26/2012CN102361319B IGBT (Insulated Gate Bipolar Translator) short circuit protection detection circuit based on driving chip
12/26/2012CN101950942B Short-circuit protection and anti-lightning circuit for plasma equipment
12/26/2012CN101707345B Method for controlling switch controller
12/26/2012CN101267100B Exception protection device for negative and positive dual power supply circuit
12/25/2012US8340829 Method and apparatus of detecting and compensating for DC residual fault currents on electrical systems
12/25/2012US8339759 Relocatable power tap with surge protector
12/25/2012US8339756 Control circuit having a delay-reduced inverter
12/25/2012US8339755 Electrical fault restricting system
12/25/2012US8339102 System and method for regulating loading on an integrated circuit power supply
12/22/2012CA2778082A1 Electrode and method for supplying current to a reactor
12/21/2012CA2743892A1 Dc power supply insulation fault detection circuit
12/20/2012WO2012171694A1 A method for detecting earth faults
12/20/2012WO2011147662A3 Method for supplying an electric domestic appliance from a low voltage supply network and a domestic appliance suitable for carrying out said method
12/20/2012US20120320643 Snubber circuit and inverter with the same
12/20/2012US20120320489 Surge absorbing circuit and electric device using the same
12/20/2012US20120320488 Surge arrester and gas-insulated electric apparatus
12/20/2012US20120320483 Apparatus and method for electronic circuit protection
12/20/2012US20120320482 Semiconductor integrated circuit
12/20/2012US20120320481 Protection System
12/20/2012US20120320480 Device for protecting an integrated circuit chip against attacks
12/20/2012US20120320479 Portable drilling machine
12/20/2012US20120320478 Overcurrent limiting for high side solenoid switch controls
12/20/2012US20120320477 Device for detecting an attack in an integrated circuit chip
12/20/2012DE202012011301U1 AS-i Motormodul mit Einzelstrang Absicherung AS-i motor module with single-stranded hedging
12/20/2012DE102011077460A1 Protection device used in electrical power system, triggers switching of switching device based on temperature parameter of superconducting fault current limiter, in order to interrupt current flowing through current limiter
12/20/2012CA2780398A1 Arc flash system for a power circuit
12/19/2012EP2534743A2 Method for charging a rechargeable energy store, charging device for a rechargeable energy store, and circuit breaker
12/19/2012DE202012104080U1 Elektronische Sicherungsvorrichtung und Steuerungsvorrichtung Electronic security apparatus and control apparatus
12/19/2012CN202617058U Rectification and voltage stabilization power supply apparatus of underground turbine generator
12/19/2012CN202616815U On-board unit
12/19/2012CN202616756U Undervoltage protecting circuit of switching power supply
12/19/2012CN202616755U Externally hung capacitor discharging device special for explosion-proof elevator frequency converter
12/19/2012CN202616754U Anti-locked-rotor structure of motor
12/19/2012CN202616749U Generator electricity generation output protecting device
12/19/2012CN202616747U Dual-thyristor electric leakage protection device capable of resisting electronic daylight lamp starting high-frequency interference
12/19/2012CN202616745U Automatic power-off protection control system
12/19/2012CN202616744U Leakage protector
12/19/2012CN202616743U Circuit protection device and electric vehicle control system
12/19/2012CN202616742U Zero-voltage time-delay electrical apparatus release
12/19/2012CN202616741U Under-voltage and over-voltage bidirectional electrical apparatus release
12/19/2012CN202616740U High-voltage under-voltage electrical apparatus release
12/19/2012CN202616739U Multifunctional electrified wire netting protecting device
12/19/2012CN202616738U Power supply protective module
12/19/2012CN202616737U Mobile power supply light load protection circuit
12/19/2012CN202616736U Electrical signal induction controller
12/19/2012CN202616538U Over-current-protection electric leakage protection plug
12/19/2012CN202613524U Power supply safety device for microwave oven
12/19/2012CN202608721U Low-frequency emission protection circuit for automotive system
12/19/2012CN102834993A Method and apparatus for differential protection of an electric connection
12/19/2012CN102834992A Determination of the fault current component of a differential current
12/19/2012CN102834991A Improved ground detection circuit and method of manufacturing the same
12/19/2012CN102834890A Power and control unit for low or medium voltage apparatus
12/19/2012CN102833929A Self-ballasted fluorescent lamp and open loop protection circuit thereof
12/19/2012CN102833917A LED constant-current control circuit and LED liquid crystal television
12/19/2012CN102833506A Television device and method for charging external equipment through USB (universal serial bus) interface of television device
12/19/2012CN102832608A Circuitry to prevent overvoltage of circuit systems
12/19/2012CN102832601A Coal mine high-voltage electricity leakage protecting method based on phase current time-division specific values
12/19/2012CN102832596A Low voltage electrombile drive protecting circuit and low voltage electrombile drive protecting method
12/19/2012CN102832594A Electricity leakage protection equipment used for variable frequency speed regulating device
12/19/2012CN102832593A Electric leakage detection protection circuit with lightning impulse preventing/resisting function
12/19/2012CN102832592A Electric leakage detection protection circuit with lightning impulse preventing/resisting function
12/19/2012CN102832591A Electricity leakage detecting protection circuit with function of lightning impulse resistance
12/19/2012CN102832590A Over-voltage automatic cut-off device
12/19/2012CN102832589A Electric leakage measurement and control system and measurement and control method thereof
12/19/2012CN102832588A Engineering machine and high-voltage safety protection system of engineering machine
12/19/2012CN102832587A RS485 bus/node protector and method thereof
12/19/2012CN102832511A AC socket having over-voltage protection
12/18/2012US8335066 Protection circuit and electronic device using the same
12/18/2012US8335065 Overvoltage protection in a power supply
12/18/2012US8335064 ESD clamp adjustment
12/18/2012US8335063 Redundant systems, methods, and apparatus for use in arc flash prevention systems
12/18/2012US8335062 Protective device for an electrical supply facility
12/18/2012US8335060 Hybrid fault current limiter
12/18/2012US8334666 Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly
12/18/2012US8334621 Electronic equipment and power supply state control method for electronic equipment
12/18/2012CA2559318C Electrical safety lockout mechanism for power tools and other hazardous machinery
12/13/2012WO2012136274A3 Method for operating a recloser
12/13/2012US20120316805 Zone selective interlocking test method and apparatus, and circuit interrupter apparatus and power distribution system including the same
12/13/2012US20120314331 Release for an electrical switching arrangement
12/13/2012US20120314330 Dual voltage hot swap module power control
12/13/2012US20120314329 System of current protection of a primary electrical distribution box
12/13/2012US20120313788 Alternating current contactor with electronic short circuit self-locking function
12/12/2012EP2533388A1 Digital protection control system and digital protection control apparatus
12/12/2012EP2532063A1 Improved ground detection circuit and method of manufacturing the same
12/12/2012CN202603024U Ballast circuit of electronic energy-saving lamp with protection against overvoltage or abnormal states
12/12/2012CN202602971U LED lamp with leakage protection function
12/12/2012CN202602536U Capacitor charging control device for compressor and compressor
12/12/2012CN202602326U Charger with over-voltage protection
12/12/2012CN202602273U Surge protective device for full mold
12/12/2012CN202602259U Overcurrent driving protection device for PWM control circuit
12/12/2012CN202602258U Unidirectional coupling network raising over-current protection performance of system
12/12/2012CN202602257U Overcharge protector for electric vehicle battery
12/12/2012CN202602256U Farad-level aluminum electrolytic capacitor overvoltage protection device
12/12/2012CN202602251U Port protection circuit used for keyless entry system
12/12/2012CN202602250U Electronic protection device for lighting controller
12/12/2012CN202602249U Ingot furnace with industrial personal computer line separated from overtemperature alarm line
12/12/2012CN202602248U Energy saving controller provided with over-voltage protection and timed shutdown
12/12/2012CN202602247U Electricity-stealing-prevention device for power grid
12/12/2012CN202602246U Zero line deficiency alarming and protecting circuit of three-phase voltage stabilizer
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