| 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) |
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| 01/18/2012 | CN202121512U Multifunctional charging power supply apparatus |
| 01/18/2012 | CN202121342U Leadless charging and timely power-off protector with control signal source for electric vehicles |
| 01/18/2012 | CN202121334U Monocase charge-discharge end supplement equalization module and battery set equalization protection management system thereof |
| 01/18/2012 | CN202121311U PLC control detection line protection system |
| 01/18/2012 | CN202121310U Split type protection supervising device used for low voltage system |
| 01/18/2012 | CN202121309U Intelligent type circuit protector |
| 01/18/2012 | CN202121308U Intelligent protection operating device of switch cabinet |
| 01/18/2012 | CN202121307U Electric pressure plate |
| 01/18/2012 | CN202121306U Electric power pressure plate with on/off state detector |
| 01/18/2012 | CN202121305U Electric pressure plate possessing on/off state position detecting device |
| 01/18/2012 | CN202121304U Electric power pressure plate having switching on/off state detecting device |
| 01/18/2012 | CN202121303U Safety protection device for lithium ion battery packs |
| 01/18/2012 | CN202121302U DC supply equipment voltage abnormity protective circuit |
| 01/18/2012 | CN202121301U Recovery comprehensive protective device of thyristor phase controlled rectification direct current motor transmission system |
| 01/18/2012 | CN202121300U Overload protection device of electric winch |
| 01/18/2012 | CN202121299U Industrial sewing machine servo motor intelligent protector |
| 01/18/2012 | CN202121298U Microcomputer protective system of converter transformer |
| 01/18/2012 | CN202121297U Input voltage under-voltage protection circuit |
| 01/18/2012 | CN202121296U Power transformer with self-protection function |
| 01/18/2012 | CN202121295U Electrical protective device of shore power supply system |
| 01/18/2012 | CN202121294U Monitor system of intelligent surge protector |
| 01/18/2012 | CN202121288U Multi-path fault protection circuit |
| 01/18/2012 | CN202121269U Switch double measuring type signal noseplate |
| 01/18/2012 | CN202121264U Special distribution box for construction site |
| 01/18/2012 | CN202121212U Circuit control device of low voltage power distribution cabinet |
| 01/18/2012 | CN202121027U Battery with high-accuracy current protection circuit |
| 01/18/2012 | CN202120829U Contactor with motor protector and replaceable contact module |
| 01/18/2012 | CN202117904U Frequency conversion, energy conservation and speed regulation device for oil field water injection pump |
| 01/18/2012 | CN202116892U Electric clothes hanging machine with motor self-checking function and intelligent delay function |
| 01/18/2012 | CN102326309A Electrical protection device and control method of the electrical protection device |
| 01/18/2012 | CN102324918A IGBT (insulated gate bipolar transistor) drive circuit |
| 01/18/2012 | CN102324884A Stepper motor feedback voltage protection scheme for engineering machinery |
| 01/18/2012 | CN102324882A Wide range speed control system and current distribution method for hybrid excitation synchronous machine |
| 01/18/2012 | CN102324855A Special AC (alternate current) adjustable power supply for carrying out power measurement and control method thereof |
| 01/18/2012 | CN102324787A Method for implementing automation of distribution network |
| 01/18/2012 | CN102324735A Electric vehicle and motor overspeed protection method and device of same |
| 01/18/2012 | CN102324734A Default phase protecting method and device for three-phase motor |
| 01/18/2012 | CN102324733A Protection circuit of power window |
| 01/18/2012 | CN102324732A Motor protecting device |
| 01/18/2012 | CN102324731A Motor protection mode |
| 01/18/2012 | CN102324730A Short circuit protection method for generator |
| 01/18/2012 | CN102324729A Secondary over-voltage protector for current transformer |
| 01/18/2012 | CN102324728A Method for judging and compensating current transformer saturation |
| 01/18/2012 | CN102324727A Comprehensive protection device for feeder line |
| 01/18/2012 | CN102324726A Abnormal protection circuit of electronic ballast |
| 01/18/2012 | CN102324725A Failure security protection method of three wastes fluidization mixing combustion furnace and device |
| 01/18/2012 | CN102324705A High-voltage switch equipment and dynamic online comprehensive detection control method of insulation level thereof |
| 01/17/2012 | US8098470 Protection unit for an AC/DC low-voltage power supply line |
| 01/17/2012 | US8098054 Optimal load controller method and device |
| 01/12/2012 | WO2012004848A1 Charging control device |
| 01/12/2012 | WO2012003888A1 Fast distance protection for energy supply networks |
| 01/12/2012 | WO2011103947A3 Electric motor for driving a motor vehicle component |
| 01/12/2012 | US20120008239 Transformer module with multiple protections |
| 01/12/2012 | US20120007532 Rotor Temperature Estimation and Motor Control Torque Limiting for Vector-Controlled AC Induction Motors |
| 01/12/2012 | DE102010031253A1 Method for detecting overvoltage of control device switches and operating window lifter motor of car, involves operating electric drive in full voltage operating condition by actuation of power switch until threshold value is reached |
| 01/12/2012 | CA2746069A1 Method and apparatus of adaptively canceling a fundamental frequency of an analog signal |
| 01/11/2012 | EP2404355A2 Method and apparatus for improving the performance of an inverter |
| 01/11/2012 | EP2153453B1 An electric motor |
| 01/11/2012 | EP1886392B1 Method for avoiding undesired, measurement error-induced protective tripping within a protection system of an hvdc transmission system |
| 01/11/2012 | CN202111663U AC variable frequency driver for detection |
| 01/11/2012 | CN202111660U Frequency conversion control circuit of three phase high speed motor |
| 01/11/2012 | CN202111647U Apparatus for reducing starting current of large power piston type air compressor |
| 01/11/2012 | CN202111520U Back-up power circuit |
| 01/11/2012 | CN202111519U Backup power supply system |
| 01/11/2012 | CN202111512U Back-up power system capable of detecting charging and discharging current |
| 01/11/2012 | CN202111511U Uninterrupted power source capable of preventing current impact |
| 01/11/2012 | CN202111491U Power cell remote monitoring control system |
| 01/11/2012 | CN202111479U Management device for rechargeable batteries |
| 01/11/2012 | CN202111467U Multi-polar low voltage circuit breaker |
| 01/11/2012 | CN202111466U Circuit protection device with automatic transfer switch function |
| 01/11/2012 | CN202111465U Power starting-free and automatic-protecting power distribution system |
| 01/11/2012 | CN202111464U Inverter leg interlocking protection circuit |
| 01/11/2012 | CN202111463U Protection circuit for frequency converter |
| 01/11/2012 | CN202111462U Phase-failure and phase-discrimination detection and protection device of motor |
| 01/11/2012 | CN202111461U Circuit device realizing load control by using leakage protector |
| 01/11/2012 | CN202111460U Intelligent motor control protector |
| 01/11/2012 | CN202111456U Open-phase detection protection circuit |
| 01/11/2012 | CN102315806A Smooth soft starting device of direct current motor |
| 01/11/2012 | CN102315788A Power conversion device and overcurrent protection method thereof |
| 01/11/2012 | CN102315780A Power source device |
| 01/11/2012 | CN102315686A Remote alarm device used in high voltage phase loss of distribution transformer |
| 01/11/2012 | CN102315684A Rapid processing method of regional busbar automatic transfer switch with small power source for grid-connected operation |
| 01/11/2012 | CN102315679A Rapid charging circuit with protection circuit |
| 01/11/2012 | CN102315663A Battery management system and method |
| 01/11/2012 | CN102315653A Charging device and method |
| 01/11/2012 | CN102315643A Three defensive lines based automatic batch fault set generation method |
| 01/11/2012 | CN102315635A Overvoltage circuit, and motor starter, overload relay and low-power system including the same |
| 01/11/2012 | CN102315634A Circuit breaker with overvoltage protection |
| 01/11/2012 | CN102315632A Driving circuit for inhibiting over current of IGBT (Insulated Gate Bipolar Transistor) |
| 01/11/2012 | CN102315628A Protecting device for passive distribution circuit and method thereof |
| 01/11/2012 | CN102315627A Controlling device for low voltage power off protection |
| 01/11/2012 | CN102315626A Charging protection circuit of battery |
| 01/11/2012 | CN102315625A Storage battery protecting device |
| 01/11/2012 | CN102315624A Overload protective system for electric window opener |
| 01/11/2012 | CN102315623A Mining explosion-proof type long-distance short-circuit protecting device |
| 01/11/2012 | CN102313143A Anti-explosion mine lamp |
| 01/11/2012 | CN101860311B Drive device of series DC machine for pitch control system |
| 01/11/2012 | CN101728810B Universal combined plastic shell of protector |
| 01/11/2012 | CN101710696B Method for solving line-protection misoperation when overloading |
| 01/11/2012 | CN101707361B Circuit weak feedback side protection self-adapting start distinguishing method |