Patents
Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726)
12/2012
12/12/2012CN202602536U Capacitor charging control device for compressor and compressor
12/12/2012CN202602413U Circuit protection device for permanent-magnet synchronous dewatering pump motor
12/12/2012CN202602337U Small router power supply device with automatic power-off function
12/12/2012CN202602326U Charger with over-voltage protection
12/12/2012CN202602308U Explosion-proof power supply apparatus
12/12/2012CN202602263U Microcomputer-type power transmission temporary protection device
12/12/2012CN202602262U Control circuit capable of preventing error motions of electric terminal effectively
12/12/2012CN202602261U Arc flash protection device in electric control cabinet of wind driven generator
12/12/2012CN202602260U Gear selection protector for workover rig
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
12/12/2012CN202602255U Electromagnetic multifunctional three-phase motor protector
12/12/2012CN202602254U Overload protection device for stone cutting machine
12/12/2012CN202602253U Motor control device of pleat pinching machine
12/12/2012CN202602252U Device for suppressing direct current at neutral point of transformer by adjustable resistor method
12/12/2012CN202602251U Port protection circuit used for keyless entry system
12/12/2012CN202602250U Electronic protection device for lighting controller
12/12/2012CN202600722U Handheld verification instrument of second-generation identity cards
12/12/2012CN102823098A Inrush-current alleviating device and method of alleviating inrush current
12/12/2012CN102820644A Dipolar resettable voltage deviation protector
12/12/2012CN102820643A High voltage direct current power transmission line protection method based on voltage and current mutation direction
12/12/2012CN102820642A Bus protection multi-main wiring operation mode self-adaption method
12/12/2012CN102820638A Overcurrent protection device and electronic equipment
12/12/2012CN102820486A Lithium iron phosphate battery module with heavy load discharge technology
12/12/2012CN102156000B Electric motor, electric motor winding temperature detection method and device as well as electric motor winding thermal protection method and device
12/12/2012CN101976881B On-line integrated device for transformer-protection and winding-deformation monitoring and application method thereof
12/12/2012CN101944722B Method and device for adjusting output power of electronic equipment
12/12/2012CN101931212B Transformer self-adaptive protector and protection method thereof
12/12/2012CN101799491B Multi-cell battery pack protection circuit
12/12/2012CN101630908B Power supply device, over voltage protection unit thereof and over voltage protection method thereof
12/12/2012CN101548461B Semiconductor protective elements for controlling short-circuits at the DC end of voltage source converters
12/11/2012US8331116 Forward converter transformer saturation prevention
12/11/2012US8331112 Systems and methods of primary-side sensing and regulation for flyback power converter with high stability
12/11/2012US8331066 Low force low oil trip mechanism
12/11/2012US8331065 Method and apparatus for improving the performance of an inverter
12/11/2012US8330431 Method for smoothing alternating electric current from a number of power generating units and wind power plant including a number of wind mills with variable rotational speed
12/11/2012US8330301 Power apparatus for a high voltage electrical power system
12/11/2012CA2466767C Auto-protected power modules and methods
12/06/2012WO2012163756A1 Ground fault protection
12/06/2012WO2012163580A1 Method for the operation of an inverter, and inverter
12/06/2012WO2012163579A1 Method for the operation of an inverter, and inverter
12/06/2012WO2012163248A1 Switching power supply control device and flyback switching power supply comprising same
12/06/2012DE102012102864A1 Motoransteuer-Regelsystem, das es erlaubt, eine Gleichstrom/Wechelstrom-Umformvorrichtung anzuschließen Motor drive control system that allows you to connect a DC / of AC and reshaping
12/06/2012DE102008064393B4 Vorrichtung und Verfahren zur Absicherung einer elektrischen Leitung Apparatus and method for securing an electrical line
12/05/2012EP2530801A1 Ground fault protection
12/05/2012CN202586838U Multipath time-delay starting and overheating protection device
12/05/2012CN202586836U Blower dual power supply electromagnetic starter with instant power failure self recovery function
12/05/2012CN202586793U Photovoltaic grid-connected inverter with input reverse-connection protection
12/05/2012CN202586765U Inverting filtration control device of power generation system of comprehensive energy steam turbine
12/05/2012CN202586754U High-voltage pulse and low-voltage circuit isolator
12/05/2012CN202586752U Low-voltage protection linear power supply circuit and television set
12/05/2012CN202586443U Lithium battery control system
12/05/2012CN202586438U Intrinsically safe power supply module for lithium battery
12/05/2012CN202586391U Charging device of small sealed lead-acid storage battery
12/05/2012CN202586382U Photovoltaic off-grid 48V control power supply possessing charging and discharging function
12/05/2012CN202586309U Intelligent recloser
12/05/2012CN202586308U Comprehensive grounding protective device for microcomputer
12/05/2012CN202586307U Digital type universal protection measurement and control device
12/05/2012CN202586306U Automatic shutdown control device for power switch
12/05/2012CN202586305U Wiring circuit for comprehensive power distribution protection measurement and control device
12/05/2012CN202586304U Wiring circuit for microcomputer line protection measurement and control device
12/05/2012CN202586303U Wiring circuit for comprehensive power distribution measurement and control device
12/05/2012CN202586302U Wiring circuit for multiple current power distribution measurement and control device
12/05/2012CN202586301U High-voltage inrush controller
12/05/2012CN202586300U Bridge-type LC resonance circuit with overcurrent protection function
12/05/2012CN202586299U Structure of over-temperature protection circuit
12/05/2012CN202586298U Power battery thermal management switching MOS tube short-circuit protection circuit
12/05/2012CN202586297U Overvoltage-protection Li-ion battery charger protector
12/05/2012CN202586296U Circuit structure capable of avoiding failure of high-voltage compensator
12/05/2012CN202586295U Wiring circuit for microcomputer capacitor protection measurement and control device
12/05/2012CN202586294U Wiring circuit for microcomputer feeder line measurement and control protection device
12/05/2012CN202586293U A leakage protection circuit of vehicle-mounted inverter and a corresponding vehicle-mounted inverter
12/05/2012CN202586292U Short-circuit protective circuit of frequency converter
12/05/2012CN202586291U Overload protection circuit
12/05/2012CN202586290U 5A voltage stabilizer with overvoltage and voltage stabilization protection
12/05/2012CN202586289U Motor open-phase protector
12/05/2012CN202586288U Overpressure and overheat protective device
12/05/2012CN202586287U Overheat protection circuit of asynchronous motor
12/05/2012CN202586286U Motor protection and monitoring system
12/05/2012CN202586285U Direct start wiring circuit for current protection device for economical electric motor
12/05/2012CN202586284U Motor overheating delay protection device
12/05/2012CN202586283U Wiring circuit for motor comprehensive protection measurement and control device
12/05/2012CN202586282U Wiring circuit for motor differential protection measurement and control device
12/05/2012CN202586281U Intelligent protector of water pump motor
12/05/2012CN202586280U An intelligent high-voltage parallel capacitor and a high-voltage automatic reactive compensator
12/05/2012CN202586279U Wiring circuit for microcomputer transformer protection device
12/05/2012CN202586278U Full function protection device of sulfur hexafluoride test transformer
12/05/2012CN202586277U Surge protection device on-site detection and control device
12/05/2012CN202586276U Excitation power supply used for superconducting magnet
12/05/2012CN202586275U Comprehensive anti-super runaway position-restricted counting timing control circuit
12/05/2012CN202579142U Embedded intelligent water pump protector
12/05/2012CN202566790U Energy-saving hair drier without carbon brush
12/05/2012CN1682419B Electrical network protection system
12/05/2012CN102811016A Intelligent motor power saver
12/05/2012CN102810847A Method for reducing tripping faults of air switch
12/05/2012CN102810846A Solar yacht with dual over discharge protection
12/05/2012CN102810845A Temperature-controlled speed-regulating device of brushless motor
12/05/2012CN102810844A Differential quick-break protection implementing method in main transformer microcomputer protection
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