| 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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| 07/10/2013 | CN203056558U IGBT module protection circuit of inversion welding machine |
| 07/10/2013 | CN203056557U Frequency converter auxiliary power supply overcurrent protection circuit |
| 07/10/2013 | CN203056556U Frequency converter charging loop having abnormity detection function |
| 07/10/2013 | CN203056555U Over-current protector |
| 07/10/2013 | CN203056554U LLC double bridge arm circle-by-circle current detection and protection circuit |
| 07/10/2013 | CN203056553U Rotation speed control device of generator set |
| 07/10/2013 | CN203056552U Overload and lock-rotor protection device for slag cooler |
| 07/10/2013 | CN203056551U Controller for door and window elevating motor |
| 07/10/2013 | CN203056550U Motor starting protection system |
| 07/10/2013 | CN203056549U Soft starter electric leakage lockout electronic protector |
| 07/10/2013 | CN203056548U Intelligent generator operating panel |
| 07/10/2013 | CN203056547U Transformer neutral point asymmetric grounding device |
| 07/10/2013 | CN203056546U Circuit protection device for gas discharge tube |
| 07/10/2013 | CN203055626U Wind electricity large current earthing system and main transformer for scalable vector graphics (SVG) system |
| 07/10/2013 | CN203054487U Motor protector expansion system implemented with logic controller |
| 07/10/2013 | CN103201923A Synchronization method for current differential protection |
| 07/10/2013 | CN103201919A Sensing and control electronics for a power grid protection system |
| 07/10/2013 | CN103199776A Circuit for switching fixed rotating speed and adjustable rotating speed of outdoor direct-current motor of air-conditioner |
| 07/10/2013 | CN103199730A High-voltage pulse power supply controlled by 555 timer |
| 07/10/2013 | CN103199591A Vehicle-mounted solar charging system for electric vehicle |
| 07/10/2013 | CN103199512A Power distribution network single-phase earth fault network reconstruction method |
| 07/10/2013 | CN103199511A VSC-HVDC power transmission line pilot protection method based on model parameter identification |
| 07/10/2013 | CN103199510A Ordered binary decision diagram modeling method for distribution network fault recovery |
| 07/10/2013 | CN103199509A Electric transmission line failure relay protection method based on double-end positive sequence fundamental components |
| 07/10/2013 | CN103199508A Method for achieving electric transmission line single phase grounding fault relay protection by using distribution parameter |
| 07/10/2013 | CN103199507A Setting calculation extreme mode selecting method based on improved proximity set method |
| 07/10/2013 | CN103199506A Over-current protection circuit and backlight module of light source drive module |
| 07/10/2013 | CN103199505A Output short-circuit protection circuit for high tension battery |
| 07/10/2013 | CN103199504A Battery protection circuit with booster circuit |
| 07/10/2013 | CN103199503A Protective circuit of vehicle-mounted charger |
| 07/10/2013 | CN103199502A Initiatively cutting circuit disconnector |
| 07/10/2013 | CN103199501A Balanced protection expander circuit |
| 07/10/2013 | CN103199500A Series capacitor bank no-dead-zone protection method |
| 07/10/2013 | CN103199499A Overvoltage protection circuit in LED (Light Emitting Diode) driving power supply, and LED driving power supply |
| 07/10/2013 | CN103199498A Power supply enabling control circuit |
| 07/10/2013 | CN103199497A Control circuit of locomotive converter |
| 07/10/2013 | CN103199496A Motor speed regulating voltage Vsp cut-off circuit of air conditioning system of brushless motor |
| 07/10/2013 | CN103199495A Method of preventing maloperation of generator power frequency zero sequence current protection |
| 07/10/2013 | CN103199494A One-phase ferromagnetic quick resonance elimination method |
| 07/10/2013 | CN103199493A Realizing method of distributed networking relay protection setting calculation system |
| 07/10/2013 | CN103199492A Motion simulation method of protection constant value |
| 07/10/2013 | CN103199090A Electrostatic protective circuit and battery protective circuit thereof |
| 07/10/2013 | CN103197243A Monitoring device and manufacturing method thereof |
| 07/10/2013 | CN102231516B Battery protection board, power battery and power battery pack |
| 07/10/2013 | CN102104247B Same-phase power supply equipment relay protection method |
| 07/10/2013 | CN101953062B Power converter |
| 07/09/2013 | US8482946 System and method providing over current and over power protection for power converter |
| 07/09/2013 | US8482945 Power converter with magnetic recovery switch |
| 07/09/2013 | US8482944 Electronic ballast with inrush protection circuit |
| 07/09/2013 | US8482886 Protection circuit, resonant converter including the protection circuit, and protecting method of the resonant converter |
| 07/09/2013 | US8482885 Hybrid switch circuit |
| 07/09/2013 | US8482884 Emergency utility interruption system |
| 07/09/2013 | US8482238 System and method for estimating a generator rotor temperature in an electric drive machine |
| 07/09/2013 | US8482237 Motor temperature estimation based on thermal model |
| 07/04/2013 | WO2013102012A1 Device and system for reducing overvoltage damage |
| 07/04/2013 | WO2013101549A2 Inverter and power system with fuse protection |
| 07/04/2013 | WO2013097584A1 Battery protection chip and device for controlling balance of battery protection chips |
| 07/04/2013 | WO2013058558A3 Battery pack with improved safety |
| 07/04/2013 | WO2013023753A8 A method of distance protection of parallel transmission line |
| 07/04/2013 | WO2012166946A3 Connectivity control of photovoltaic generators via power line communication |
| 07/04/2013 | US20130170621 Switching power supply circuit provided with protection function |
| 07/04/2013 | US20130170261 Self-discharge control for an emi filter capacitor |
| 07/04/2013 | US20130170079 On-load tap changer |
| 07/04/2013 | US20130170078 High voltage protection circuit for non-tolerant integrated circuit |
| 07/04/2013 | US20130169207 Method and device for protecting an inverter power switching semiconductor device from thermal cycling |
| 07/04/2013 | DE102011090069A1 Lüftersystem und Verfahren zur Steuerung eines Lüftermotors Fan system and method for controlling a fan motor |
| 07/03/2013 | EP2610993A1 Power supply device |
| 07/03/2013 | EP2608996A1 Safety circuit for an electric motor of an electromechanical steering system |
| 07/03/2013 | CN203039602U Power supply module of AI instrument |
| 07/03/2013 | CN203039594U Parallel variable frequency power supply for large power high voltage test |
| 07/03/2013 | CN203039581U A SD card power control circuit of an industrial camera |
| 07/03/2013 | CN203039358U An AC brake opening and closing self-holding circuit |
| 07/03/2013 | CN203039357U Section power supply and state measurement and control apparatus for parallel traction net at end of double-line railway |
| 07/03/2013 | CN203039356U 10kV inlet wire protection monitoring device |
| 07/03/2013 | CN203039355U 10kV buscouple protection device |
| 07/03/2013 | CN203039354U Lithium battery protection circuit |
| 07/03/2013 | CN203039353U Current limiting protection circuit |
| 07/03/2013 | CN203039352U Open-phase protection circuit capable of indicating phase sequence |
| 07/03/2013 | CN203039351U Submersible pump motor with burn-free temperature controller |
| 07/03/2013 | CN203039350U Motor drive device with protection function |
| 07/03/2013 | CN203039349U Motor protector realized by and based on RN8302 |
| 07/03/2013 | CN203039344U 电压瞬变保护系统及电压调节器 Voltage transient protection system and the voltage regulator |
| 07/03/2013 | CN203032415U Automatic over-zone power supply device of single track railway overhead contact system |
| 07/03/2013 | CN103190048A Power conversion apparatus |
| 07/03/2013 | CN103187915A Excitation, power generation and energy storage control device and method based on configuration |
| 07/03/2013 | CN103187727A Controlled phase shifter for ultra/extra-high voltage circuit and operating method of controlled phase shifter |
| 07/03/2013 | CN103187719A Electric transmission line interphase fault full-component voltage protection method |
| 07/03/2013 | CN103187718A Protection device of central processing unit of power distribution cabinet |
| 07/03/2013 | CN103187717A Microcomputer protection monitoring device |
| 07/03/2013 | CN103187716A Protective circuit of power amplifier tube, method of power amplifier tube and power amplifier tube |
| 07/03/2013 | CN103187715A Battery protection circuit |
| 07/03/2013 | CN103187714A Protective circuit for battery pack |
| 07/03/2013 | CN103187713A Overvoltage protection circuit and portable electronic device |
| 07/03/2013 | CN103187712A 电池充放电保护电路 Battery charge and discharge protection circuit |
| 07/03/2013 | CN103187711A Automatic overvoltage protection circuit for switching power supply |
| 07/03/2013 | CN103187710A Current-limit and over-current double current loop protection circuit |
| 07/03/2013 | CN103187709A Temperature protection and automatic control device for motor |
| 07/03/2013 | CN103187708A Real-time self-diagnosis method in operation of motor of electric power steering system |
| 07/03/2013 | CN103184924A Fan system and method for controlling a fan motor |
| 07/03/2013 | CN102064532B Overvoltage protection circuit of input follower type |