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)
12/2013
12/04/2013CN203326559U Electric leakage protection plug circuit
12/04/2013CN203326558U Low-voltage leakage protection equipment for non-grounding neutral point system
12/04/2013CN203326557U Under-voltage and over-voltage safety protection circuit of modem
12/04/2013CN203326556U Resetting system of power supply circuit
12/04/2013CN203326555U Power supply overvoltage protection circuit of electronic product port
12/04/2013CN203326554U Double-circuit overvoltage and undervoltage protection device
12/04/2013CN203326553U Multiple time-delaying overvoltage protector
12/04/2013CN203326552U Non-stick over-voltage under-voltage protector
12/04/2013CN203326551U Magnetic latching non-stick over-voltage and under-voltage protector
12/04/2013CN203326550U Overcurrent protection device
12/04/2013CN203326549U Power supply time program controller with current-limiting protection effects
12/04/2013CN203325124U Dialing integrated dual-boot burglar alarm
12/04/2013CN203325122U Efficient lightning protection type camera shooting monitor
12/04/2013CN203325120U Protection type early warning device
12/04/2013CN203325117U Lightning protection guard device with camera shooting
12/04/2013CN203325116U Anti-lightning monitor
12/04/2013CN203324358U Household single-phase protector with power indicator
12/04/2013CN203318314U Vehicle dark current intelligent control protection system
12/04/2013CN103430036A Earth leakage detection device
12/04/2013CN103427674A 5V stabilized voltage supply with protecting function
12/04/2013CN103427405A Differential protection method on basis of high-order cumulants for power transmission line
12/04/2013CN103427395A Open circuit protection circuit, open circuit protection method and lighting device
12/04/2013CN103427394A Mining flame-proof type selective leakage protector
12/04/2013CN103427393A Direct current stabilized power supply protective device with time delay and voice frequency feedback functions
12/04/2013CN103427392A Protective device for electric system
12/04/2013CN103426699A Safe and sensitive over-current protector
12/04/2013CN103425544A Method for solving fan electrification maintenance
12/04/2013CN101965620B Residual-current circuit breaker
12/03/2013US8599529 Active lightning protection
12/03/2013US8599527 Overvoltage protection circuit and portable electronic device having the same
12/03/2013US8599526 Protection lockout in substation automation
12/03/2013US8599523 Arc fault circuit interrupter
12/03/2013US8599522 Circuit interrupter with improved surge suppression
12/03/2013US8599521 Switching regulator and operation control method
12/03/2013US8599035 Equipment module indicator handle and methods for indicating equipment module status
12/03/2013CA2667883C Systems and methods for arc fault detection
11/2013
11/28/2013WO2013176787A1 Fault current limiter
11/28/2013WO2013176410A1 Secondary protection circuit of wireless power transmission device
11/28/2013WO2013175846A1 Performance test system for protective relay apparatus
11/28/2013WO2013174726A1 Method of fault clearance
11/28/2013US20130314836 Transistor Overcurrent Detection
11/28/2013US20130314834 Semiconductor driving circuit and semiconductor device
11/28/2013US20130314832 Overcurrent protection device and method of operating a power switch
11/28/2013US20130314831 Method for protecting an electrical energy distribution box
11/28/2013US20130314830 Circuit Protection
11/28/2013US20130314829 Switching device
11/28/2013US20130314827 Current detecting mechanism capable of detecting ground fault for direct current circuit breaker
11/28/2013US20130314823 Power supply circuit for on board energy source or storage device and particularly for super-capacitor storage unit
11/28/2013US20130313906 Remote load bypass system
11/27/2013EP2667469A1 High precision clipping regulator circuit
11/27/2013EP2667398A1 Residual current operated circuit breaker with self-test device
11/27/2013EP2665929A1 A wind turbine fault detection circuit and method
11/27/2013EP2639914A9 Method and apparatus for adapting earth-fault protection settings in a three-phase electric network
11/27/2013CN203313239U Love help device
11/27/2013CN203313058U Non-isolated large-current adjustable DC regulated power supply
11/27/2013CN203312892U Handheld identity card verification instrument voltage conversion and protection circuit
11/27/2013CN203312803U Anti-surge power supply port of telemetry terminal
11/27/2013CN203312801U Surge protector for LED street lamp power supply
11/27/2013CN203312791U Rectification type capacitance-resistance absorbing device
11/27/2013CN203312772U DC power automatic protection and control circuit
11/27/2013CN203312769U Thin oil station power failure protection device for large- or medium-sized speed reducer
11/27/2013CN203312767U Generator protecting device
11/27/2013CN203312764U Residual current action protection relay
11/27/2013CN203312763U Triple overvoltage protection circuit for intrinsically-safe power supply
11/27/2013CN203312762U Three-phase overvoltage and undervoltage miniature circuit breaker with earth leakage protection
11/27/2013CN203312761U Power supply protection system of mass flow controller
11/27/2013CN203312760U Triple over-current protection circuit of intrinsic safety power supply
11/27/2013CN203312759U Synergetic protective device of ring network cabinet units
11/27/2013CN203312758U Protection device of failed vacuum circuit breaker
11/27/2013CN203312579U Movable arc fault protection device
11/27/2013CN203311614U Voltage monitoring and telemetering terminal
11/27/2013CN103415972A Methods, systems, and apparatus and for detecting parallel electrical arc faults
11/27/2013CN103414173A Method for performing fault recovery on power distribution network based on ultra-short term load
11/27/2013CN103414171A Method for protecting whole-line rapid-cutting and optimizing reclosure of current collection line
11/27/2013CN103414163A Direct-current power supply output overcurrent protection device
11/27/2013CN103414153A Over/under voltage protector
11/27/2013CN103414152A Overcurrent protection device for klystron of low-hybrid wave heating system
11/27/2013CN103414151A Fault alarming device with wechat function
11/27/2013CN103414150A Inverse time limit protection method
11/27/2013CN103414149A Power system online checking principle self-defined method
11/27/2013CN103414148A Three-phase power supply protection recorder with fault recording function
11/27/2013CN103412532A Nuclear power plant underlight electronic control system
11/26/2013US8593773 Half-bridge circuit protected against short circuits and having semiconductor switches
11/26/2013US8593772 Surge protection circuit
11/26/2013US8593771 Power modules with reverse polarity protection
11/26/2013US8593770 Protection circuit
11/26/2013US8593769 Secure arc flash detection
11/26/2013CA2799478C A system, a tool and a method for communicating with a faulted circuit indicator using a display
11/26/2013CA2763684C Circuit protection device for photovoltaic systems
11/26/2013CA2736044C Distributed bus differential protection using time-stamped data
11/26/2013CA2705918C Short-circuit limiting apparatus in a low-voltage installation
11/26/2013CA2515035C Circuit interrupting device and system utilizing bridge contact mechanism and reset lockout
11/26/2013CA2471689C Method and apparatus for preventing overloads of power distribution networks
11/21/2013WO2013171904A1 Digital protection control device
11/21/2013WO2013171251A1 Electronic device for protecting an electric conductor and method for controlling such a device
11/21/2013WO2013170891A1 Apparatus for protecting a load
11/21/2013WO2013170638A1 Method and device of detection and processing for striking fire of line
11/21/2013WO2013170301A1 Electrical protection device, system and control circuit
11/21/2013WO2013092037A3 Rectifier circuit having error detection
11/21/2013US20130308239 Switching device and breaker control method
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