| 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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| 12/16/2009 | CN201365119Y Power battery protection device |
| 12/16/2009 | CN201365118Y Battery protection circuit with high integration level |
| 12/16/2009 | CN201365117Y External storage battery safe protection circuit |
| 12/16/2009 | CN201365116Y Power capacitor protecting device |
| 12/16/2009 | CN201365115Y Motor protector |
| 12/16/2009 | CN201365114Y Circuit capable of continuously performing overvoltage protection on electric generator rotor |
| 12/16/2009 | CN201365109Y Relay protection device based on dual-CPU |
| 12/16/2009 | CN201364940Y Novel multifunctional lithium ion battery pack and protective circuit thereof |
| 12/16/2009 | CN201364900Y Electrostatic discharge protection device of multi-power domain integrated circuit |
| 12/16/2009 | CN101604907A Over-current protective device used for current supply device and relevant current supply device |
| 12/16/2009 | CN101604882A High safe diesel generator set |
| 12/16/2009 | CN101604851A Monitoring system and method of storage battery LVD value |
| 12/16/2009 | CN101604850A Handheld device with quick charge capability |
| 12/16/2009 | CN101604849A Charge unit as well as combination of charge unit and battery pack |
| 12/16/2009 | CN101604842A Protective system for electric power system |
| 12/16/2009 | CN101604839A Over-discharge protection circuit for rechargeable battery |
| 12/16/2009 | CN101604838A Method for optionally cutting off fault point of double branch circuits at low voltage side of transformer |
| 12/16/2009 | CN101604837A Device and method for controlling infrared lamp ovens |
| 12/16/2009 | CN101603982A Distributed method for collecting zero-sequence current concerning load variation |
| 12/16/2009 | CN100570999C Switching control circuit and self-excited DC-DC converter |
| 12/16/2009 | CN100570988C Automatic control device for differential distribution network |
| 12/16/2009 | CN100570978C Current deep constant-current output driving circuit with load short circuit protection function |
| 12/16/2009 | CN100570977C Method for identifying transformer inner echo surge current |
| 12/16/2009 | CN100570384C Method for testing electric secondary AC loop |
| 12/15/2009 | US7633777 Active peak voltage-limiting clamp circuit |
| 12/15/2009 | US7633776 DC-DC converter for overvoltage protection |
| 12/15/2009 | US7633769 DC-AC converter, and method for supplying AC power |
| 12/15/2009 | US7633737 Liquid immersed surge arrester |
| 12/15/2009 | US7633736 Circuit interrupter including nonvolatile memory storing cause-of-trip information |
| 12/15/2009 | US7633727 Arc fault circuit interrupter and series arc fault detection method using plural high frequency bands |
| 12/15/2009 | US7633725 Micro-electromechanical system based soft switching |
| 12/15/2009 | US7633262 Power supply for underground and pad mounted power distribution systems |
| 12/15/2009 | US7633253 Control and monitoring arrangements for an aperture closure member |
| 12/15/2009 | US7633246 Portable linear actuator and a method of limiting the maximum force of a motor of such an actuator |
| 12/15/2009 | CA2461810C Method and apparatus for welding with high frequency protection |
| 12/15/2009 | CA2444495C Method and apparatus for facilitating control of a movable barrier operator |
| 12/12/2009 | CA2638954A1 Railroad switch machine |
| 12/10/2009 | WO2007088443A3 A radio frequency coupler, coupling system and method |
| 12/10/2009 | US20090303761 Converter station and a method for control thereof |
| 12/10/2009 | US20090303641 Switching regulator and operations control method thereof |
| 12/10/2009 | US20090302792 AC rotating machine with improved drive for its stator coil |
| 12/10/2009 | DE102008027428A1 Verbesserter Ladegerät-Überspannungsschutz-FET Improved charger overvoltage protection FET |
| 12/10/2009 | DE102008027113A1 Verfahren und Vorrichtung zur Steuerung eines Motors Method and apparatus for controlling a motor |
| 12/09/2009 | EP2130349A1 Method of configuring an intelligent electronic device |
| 12/09/2009 | CN201360228Y Rail pressure power generation module and system thereof |
| 12/09/2009 | CN201360219Y Frequency converter I/O terminal and fault processing circuit |
| 12/09/2009 | CN201360160Y Intelligent short-circuit-prevention charger |
| 12/09/2009 | CN201360148Y Pressure difference protective single-phase discharge coil |
| 12/09/2009 | CN201360143Y Undervoltage automatic power-off protection device for car battery |
| 12/09/2009 | CN201360142Y Phase failure protector for oil pump motor terminal of torpedo car lubrication system |
| 12/09/2009 | CN201360141Y Inverted sequence and open phase protection circuit for milk container microcomputer controller |
| 12/09/2009 | CN201360140Y Open-phase protection device of three-phase asynchronous motor |
| 12/09/2009 | CN201360139Y Group-type microcomputer motor protective monitoring device |
| 12/09/2009 | CN201359909Y Protective transformer |
| 12/09/2009 | CN201356970Y Electric roller skate |
| 12/09/2009 | CN101599701A Switch power supply with fault protection function and control method thereof |
| 12/09/2009 | CN101599641A System and method for supplying power to communication equipment through high voltage direct-current |
| 12/09/2009 | CN101599638A Relay protection multi-communication mode intelligent switching device |
| 12/09/2009 | CN101599637A Voltage loss protective device and control bus automatic voltage regulator |
| 12/09/2009 | CN101599636A Method for preventing interference signals from invading bus differential protection to cause same to false act |
| 12/09/2009 | CN101599635A Method for enhancing differential protection performance by coordination of mutation quantity fault discrimination and fuzzy harmonic analysis |
| 12/09/2009 | CN101599634A Method for discriminating excitation inrush current and failure current of transformer based on S-transformation |
| 12/09/2009 | CN101599633A Electrical circuit for protecting photovoltaic systems |
| 12/09/2009 | CN101599632A Monitoring and control circuit for adjusting current |
| 12/09/2009 | CN100568662C Battery, battery protection processing device and control method |
| 12/09/2009 | CN100568657C 50Hz and 100Hz protection and setting method for high voltage DC power input system |
| 12/09/2009 | CN100568654C Electrical power switching system and electrical power system |
| 12/09/2009 | CN100568011C Generator injected type stator ground protection combination type analog experiment panel and test method |
| 12/08/2009 | US7630184 Method and apparatus for an over-voltage detection circuit |
| 12/08/2009 | US7630182 Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof |
| 12/08/2009 | US7630180 Motor starter circuit |
| 12/08/2009 | US7630179 Protective link for superconducting coil |
| 12/08/2009 | US7629786 Device for reducing harmonics in three-phase poly-wire power lines |
| 12/08/2009 | US7629776 Control and power module for a rotating electrical machine |
| 12/03/2009 | WO2009144083A1 Method and system for detecting residual secondary current in current transformer in high tension electrical network, and for detecting arc formation in circuit breaker |
| 12/03/2009 | US20090296430 Pre-charging device for a chopping converter, and an assembly and aircraft comprising it |
| 12/03/2009 | US20090296287 Overvoltage protection system |
| 12/03/2009 | US20090295399 On-vehicle battery condition estimation device |
| 12/03/2009 | US20090295321 Motor drive circuit |
| 12/03/2009 | US20090295317 Ultra-compact, high-performance motor controller and method of using same |
| 12/03/2009 | US20090295231 Intelligent Power Collection Network |
| 12/03/2009 | DE102009025858A1 Verfahren und Einrichtung zum Erfassen eines Fehlers in einer bürstenlosen Erregerstufe für einen Generator Method and apparatus for detecting a fault in a brushless exciter stage for a generator |
| 12/03/2009 | DE102008026376A1 Motor branch pipe operating method for heavy duty rolling mill electric motor, involves allowing destruction characteristic line and minimum release time to lie below and above protecting region, respectively |
| 12/03/2009 | DE102008025986A1 Overvoltage protection device for voltage-sensitive power semiconductor component e.g. diode, has monitoring circuit comprising limiting device for limiting charge carriers flowing in monitoring circuit to predetermined maximum value |
| 12/02/2009 | EP2127824A2 Rechargeable power tool, control unit and program |
| 12/02/2009 | EP2127063A1 Adaptive provision of protection function settings of electrical machines |
| 12/02/2009 | CN201355804Y Four-dimensional ultrasonic probe motor control system |
| 12/02/2009 | CN201355796Y Brushless DC motor used for suction cleaners |
| 12/02/2009 | CN101595634A Short circuit protection circuit |
| 12/02/2009 | CN101595010A Mirror adjustment mechanism, wing mirror unit and method |
| 12/02/2009 | CN101594108A Resistance torsion control and battery discharge protection circuit of electric motor |
| 12/02/2009 | CN101593997A Self excited type oscillating circuit for battery charger |
| 12/02/2009 | CN101593974A Compound overvoltage protection device and application thereof in semiconductor convertor equipment |
| 12/02/2009 | CN101593972A Fault line selection method for resonant grounded power distribution system by pattern spectrum |
| 12/02/2009 | CN101593971A Failure resonant frequency based protection method |
| 12/02/2009 | CN101593970A Method for compensating time-domain capacitive current for double-circuit line on same pole |
| 12/02/2009 | CN101593969A Method for realizing station-to-station error prevention by using residual voltage of breaker port |
| 12/02/2009 | CN101593968A Overcurrent protection method and the overcurrent protector of isolated gate bipolar transistor (IGBT) |
| 12/02/2009 | CN101593967A Multi-series lithium battery pack low-power dissipation protection circuit |
| 12/02/2009 | CN101593966A Open-phase protector for three-phase motor |