Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02H - Emergency protective circuit arrangements › 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
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)
05/2010
05/19/2010CN101710800A Electric network disturbance resistant processing method for PWM converter connected with electric network
05/19/2010CN101710798A Convertor
05/19/2010CN101710789A Megawatt-level permanent magnet direct-drive wind-force generating converter and control method
05/19/2010CN101710696A Method for solving line-protection false tripping when overloading
05/19/2010CN101710695A Wave-following current-limiting method and device of switching tube of uninterruptible power supply
05/19/2010CN101710694A Car engine cooling fan blocking/overcurrent protection system and method
05/19/2010CN101710693A Micromotor protective circuit, search lamp control device and micromotor excess flow control method
05/19/2010CN101710692A Out-of-step protection method for synchronous motor
05/19/2010CN101710691A Device for eliminating protection dead zone of generator motor and main transformer in pumped storage power station
05/19/2010CN101710688A Method for evaluating withstand current of high-resistant neutral point small reactor
05/19/2010CN101710628A Battery low-voltage protection circuit and battery management circuit
05/19/2010CN101208846B Power storage device
05/19/2010CN101077740B Worm distributor operation control method
05/19/2010CN101025046B Built-in insertion-type concrete vibrator for electric motor and its abnormal operation protection method
05/19/2010CN101013811B Method and apparatus of single-phase fault line selection of duplicate supply looped network
05/18/2010US7719863 Active start judgment circuit
05/18/2010US7719817 Electronic control systems and methods
05/18/2010US7719803 Load driving device and electrical device using the same
05/18/2010US7719217 Drive device for a brushless motor
05/18/2010US7719201 Microdevice, microdevice array, amplifying circuit, memory device, analog switch, and current control unit
05/18/2010US7719135 Multi-level power supply system for a complementary metal oxide semiconductor circuit
05/14/2010WO2010052167A1 Converter circuit having overvoltage protection
05/14/2010WO2010052107A1 Method and device for activating monitoring by a jamming protection function in an electrical closing system
05/14/2010WO2010052048A1 Three-phase ac power controller
05/14/2010WO2010051836A1 Half-bridge circuit protected against short circuits and having semiconductor switches
05/13/2010US20100118454 Esd protection circuitry with multi-finger scrs
05/13/2010US20100117582 Motor control device
05/13/2010US20100117581 Rechargeable electric power tool
05/13/2010US20100117580 Rechargeable electric power tool
05/13/2010US20100116595 Management of power source variations in an elevator drive system
05/12/2010EP2184830A1 Device for monitoring the temperature of a multi-phase energy coil of an electric machine
05/12/2010DE102009018389A1 Motorsteuervorrichtung The motor control apparatus
05/12/2010DE102008056581A1 Vorrichtung zur Speisung eines Abnehmernetzes mit der elektrischen Leistung eines Versorgungsnetzes Apparatus for powering a customer network with the electric power of a supply network
05/12/2010DE102008056536A1 Elektrischer Wechselrichter Electrical Inverters
05/12/2010DE102008056400A1 Umrichterschaltung mit Überspannungsschutz Inverter with surge protection
05/12/2010CN201467522U Dynamic energy-saving illumination power supply device
05/12/2010CN201467091U Optocoupler-driven protection device
05/12/2010CN201467065U Variable frequency control system of air compressor motor
05/12/2010CN201467062U AC frequency conversion speed regulation control equipment of rotary drill rig
05/12/2010CN201467038U Direct current brake controller for alternating current starting/stopping of special direct current motor of note counter
05/12/2010CN201466996U Multifunctional high-power DC power supply device
05/12/2010CN201466793U Automatic control system for substation
05/12/2010CN201466774U Slot-type multifunctional battery charger powered on wall
05/12/2010CN201466772U Charger management circuit
05/12/2010CN201466763U Portable mobile power supply
05/12/2010CN201466760U Electric vehicle charging, repairing and maintaining instrument
05/12/2010CN201466723U Electric device for improving quality of working power grid of electric arc furnace
05/12/2010CN201466719U Magnetic valve type arc-suppression coil controlling and grounding fault circuit identifying integrated device
05/12/2010CN201466712U Novel surge protector
05/12/2010CN201466696U Integrated monitoring device of stage head protection and grounding for DC system
05/12/2010CN201466695U Multifunctional relay protection device
05/12/2010CN201466694U Micro-relay protection automation measuring and control device based on composite structure of DSP and MCU
05/12/2010CN201466693U Comprehensive protector for intelligent high-voltage power distribution device
05/12/2010CN201466692U Low voltage protection circuit for AC contactor
05/12/2010CN201466691U Solar cell charging and discharging controller
05/12/2010CN201466690U Electric vehicle straight-through prevention power converter
05/12/2010CN201466689U Protecting circuit for improving short-circuit protective capability of switch power supply
05/12/2010CN201466688U Multifunctional protector for AC motors
05/12/2010CN201466687U Novel protector for starting and operating electric motor
05/12/2010CN201466686U Fault early-warning device of motor
05/12/2010CN201466685U Electronic protective device
05/12/2010CN201466684U Reset button structure of motor protector
05/12/2010CN201466683U Multi-motor protection and fault detection device
05/12/2010CN201466682U Monitoring device of high-power motor of COREX slag vertical mill
05/12/2010CN201466681U Full-automatic protector of three-phase AC motor
05/12/2010CN201466680U Intelligent waterproof protector of underwater electrical equipment
05/12/2010CN201466679U Motor torque monitoring and protecting device of crane
05/12/2010CN201466678U Voltage-reduction starting autotransformer coil burnout resistance device
05/12/2010CN201466677U Non-electric quantity protection remote tripping device of transformer
05/12/2010CN201466672U Power-fail protection circuit and system of entire automobile controller of electric automobile
05/12/2010CN201466504U Digital integral control cabinet of oil pumping unit
05/12/2010CN201466159U Battery charger, battery system and electric tool system
05/12/2010CN201464623U Circuit by using protecting chip and diodes to realize overcurrent detection
05/12/2010CN201464549U Loss-of-excitation protection auxiliary distinguishing element based on measured value of generator stator circuit
05/12/2010CN201461235U Controller of electromagnetic speed-restricting voltage-stabilizing type wind power and photovoltaic power generation system of 600W
05/12/2010CN201458307U Device for protecting link plates and chain links of plate feeder
05/12/2010CN1945916B Device to protect against a surge voltage and an electronic apparatus including the same
05/12/2010CN1922453B Refrigerating unit
05/12/2010CN1909317B Motor protection device
05/12/2010CN1901312B Motor controller
05/12/2010CN1897384B Method for detecting structural change of supply network
05/12/2010CN1761115B Method for intelligent recognizing and removing faults of powre system
05/12/2010CN1725138B Current mode step-down switching regulator
05/12/2010CN1505862B Protection of electrical power lines
05/12/2010CN101707450A Solar energy controller
05/12/2010CN101707382A 9V power supply device with circuit protecting board
05/12/2010CN101707369A Arc and resonance elimination comprehensive device for power grid
05/12/2010CN101707361A Circuit weak feedback side protection self-adapting start distinguishing method
05/12/2010CN101707360A Adaptive weak-infeed pilot protection method of transmission line
05/12/2010CN101707359A High-capacity intelligent high-speed breaking device
05/12/2010CN101707358A Single-phase grounding comprehensive protecting device of electric network
05/12/2010CN101707357A DC protection method by using AC electric quantity for verification in DC supply system
05/12/2010CN101707356A DC protection method by using analog AC rectification in DC supply system
05/12/2010CN101707355A Automatic adjustment circuit and automatic adjustment method for phase sequence of three-phase power supply of air conditioner
05/12/2010CN101707354A Digital and electronic integrative motor protection controller
05/12/2010CN101707353A Inverse time lag over excitation protection method of generator and transformer
05/12/2010CN101707352A Method and device thereof for fault detection/protection for SVC system
05/12/2010CN101707351A Protection circuit for preventing microcomputer protection device against interference and error actions
05/12/2010CN101707350A Overheat protection circuit and switch power supply circuit
05/12/2010CN101340080B Integrated coordinating control method for security stabilization early warning, preventing control and emergency control
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