| 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) |
|---|
| 06/03/2009 | CN100495851C Method for saturating anti-current mutual inductor differential protection |
| 06/03/2009 | CN100495850C Anti-current transformer saturation method for protecting line differential action |
| 06/03/2009 | CN100493945C Vehicle air conditioner |
| 06/02/2009 | US7543264 High frequency signal transmission line having ground line blocks to reduce noise |
| 06/02/2009 | US7542313 Induction heating apparatus capable of stably operating at least one switching element contained therein |
| 06/02/2009 | US7542256 Relay device and corresponding method |
| 06/02/2009 | US7542251 Auto-protected power modules and methods |
| 06/02/2009 | US7542250 Micro-electromechanical system based electric motor starter |
| 06/02/2009 | US7541785 Load driving device and portable apparatus utilizing such driving device |
| 06/02/2009 | US7541784 Dual voltage switching in power generation |
| 06/02/2009 | CA2452375C Voltage and current source selection system for use in the protection, automation and control of an electric power system |
| 05/28/2009 | WO2009065701A1 Method and device for correcting temperature-dependent changes in the mechanical properties of a mobile closing part of a vehicle |
| 05/28/2009 | WO2009065390A1 Electric hand tool |
| 05/28/2009 | WO2009048877A3 Superconducting switch operation |
| 05/28/2009 | US20090136243 Motor Controller and Printer |
| 05/28/2009 | US20090134818 Universal input voltage device |
| 05/28/2009 | US20090134391 High performance sub-system design and assembly |
| 05/28/2009 | DE102008058171A1 Electrical appliance e.g. drill, has switching arrangement with over current mechanism, where electrical voltage line to electric motor is interrupted by over current mechanism when error occurs in arrangement |
| 05/28/2009 | DE102007056559A1 Verfahren zum Überwachen von Temperatursensoren eines Pulswechselrichters und entsprechende Steuervorrichtung A method for monitoring temperature sensors of a pulse inverter and corresponding control device |
| 05/27/2009 | CN201248157Y Electronic heating device |
| 05/27/2009 | CN201248022Y Electric tool with motor control module |
| 05/27/2009 | CN201247962Y Tri-stage intelligent charging module |
| 05/27/2009 | CN201247949Y Intelligent motor protector |
| 05/27/2009 | CN201247948Y Electronic clock circuit for quarrymaster |
| 05/27/2009 | CN201247947Y Intelligent whole frequency band constant-current secondary harmony-eliminating apparatus |
| 05/27/2009 | CN201247946Y Under-voltage protection circuit and switch power circuit |
| 05/27/2009 | CN201247773Y Protection circuit for novel power tube |
| 05/27/2009 | CN201247686Y Special mutual-inductor for motor protection |
| 05/27/2009 | CN101443977A Power supply system and method |
| 05/27/2009 | CN101442283A Dual-motor synchronous servo drive device based on DSP |
| 05/27/2009 | CN101442271A Dc-ac converter substrate with voltage abnormal detection circuit |
| 05/27/2009 | CN101442266A Soft rock electrochemical stabilization DC power supply device |
| 05/27/2009 | CN101442209A Cascade combined protection equilibrium module for large-capacity lithium ion battery |
| 05/27/2009 | CN101442204A Protection method for multi-string ferric phosphate lithium ion battery |
| 05/27/2009 | CN101442203A Protection device for taking off cover of power battery |
| 05/27/2009 | CN101442202A Rapid protection device for indoor cable head |
| 05/27/2009 | CN101442195A Live conductor stringing and splicing method and apparatus |
| 05/27/2009 | CN101441242A Method for detecting failure current cutting-off time when electric power system out of order |
| 05/27/2009 | CN101440991A Control method of low voltage operating fixed speed air conditioner |
| 05/27/2009 | CN100492846C Control system for serial operation of the quick crystal brake tube |
| 05/27/2009 | CN100492834C Converter circuit with short-circuit lurrent protections |
| 05/27/2009 | CN100492805C Lithium ion emergency vehicle startup power supply |
| 05/27/2009 | CN100492802C Method for realizing transmission line protection based on admittance principle |
| 05/27/2009 | CN100492801C Method for implementing electrode isolation of super-high voltage DC system |
| 05/27/2009 | CN100492800C Short circuit trouble protective method for converter valve assembly |
| 05/27/2009 | CN100492799C Signal sample circuit for electronic type electric motor protective equipment |
| 05/27/2009 | CN100492798C Compressor assembly and cooling system |
| 05/27/2009 | CN100492797C Waveform sine principle based transformer excitation flow recognition method |
| 05/27/2009 | CN100492795C Method for judgement of converter transformer grounding on valve side |
| 05/26/2009 | US7539001 Surge discharging device |
| 05/26/2009 | US7538992 System, device, and method for over-current relays protecting motors |
| 05/26/2009 | US7538990 High voltage DC contactor hybrid without a DC arc break |
| 05/26/2009 | US7538533 Method and apparatus to provide temporary peak power from a switching regulator |
| 05/26/2009 | US7538508 Thermal overload protection |
| 05/26/2009 | CA2280378C Arrangements to detect and respond to disturbances in electrical power systems |
| 05/22/2009 | WO2009062535A1 Method and arrangement for protecting, controlling or monitoring an electrical switchgear or power supply station |
| 05/21/2009 | US20090129129 Switching power supply device |
| 05/21/2009 | US20090128347 Method and Apparatus for Protection of AC-DC power Converters |
| 05/21/2009 | US20090128077 Thermally actuated overload tripping device |
| 05/20/2009 | EP2059987A1 Short-circuit current meter |
| 05/20/2009 | EP2059986A1 Protective circuit for protection of an appliance, in particular an electric motor, against thermal overloading |
| 05/20/2009 | EP2059942A1 Switching device, in particular a compact starter |
| 05/20/2009 | DE20321684U1 Elektronische Schaltung mit einem Leistungshalbleiterbauelement und mit einem Sicherungsmittel zum Schutz des Leistungshalbleiterbauelements An electronic circuit comprising a power semiconductor device and having a safety means for protecting the power semiconductor component, |
| 05/20/2009 | DE102007053117A1 Antrieb für einen beweglichen Teil in einem Fahrzeug, wie einer verfahrbaren Kamera Drive for a moving part in a vehicle, such as a movable camera |
| 05/20/2009 | DE102007051004A1 Verfahren zur Vorrichtung zur Detektion und Lokalisierung von Fehlern in einem Umrichter und/oder einer elektrischen Maschine eines elektrischen Antriebs A process for the apparatus for the detection and localization of faults in a converter and / or an electric machine of an electric drive |
| 05/20/2009 | CN201243242Y Drive motor structure of support frame |
| 05/20/2009 | CN201243216Y Solar household power supply |
| 05/20/2009 | CN201243203Y Safety protection device for electric appliance |
| 05/20/2009 | CN201243198Y Battery for mobile phone |
| 05/20/2009 | CN201243197Y Protection circuit for short circuit of module power supply |
| 05/20/2009 | CN201243196Y Intelligent control protection switch |
| 05/20/2009 | CN201243195Y Actuating apparatus for middle/small power industrial frequency three-phase transformer |
| 05/20/2009 | CN201243192Y Solar battery power supply drive protection circuit for low power DC load |
| 05/20/2009 | CN201241668Y Integrative energy-saving oil pumping machine |
| 05/20/2009 | CN101438489A Control unit for an electric motor, in particular for a fan motor |
| 05/20/2009 | CN101437703A Detection and delimitation of maximum stator currents |
| 05/20/2009 | CN101436777A Relay protection monitoring system and method based on sensor network |
| 05/20/2009 | CN101436776A Grounding and line selection method for low current grounding system |
| 05/20/2009 | CN101436775A Protection circuit module for rechargeable battery and rechargeable battery pack including the same |
| 05/20/2009 | CN101436774A Protective system for lithium ion battery |
| 05/20/2009 | CN101436773A Restarting method |
| 05/20/2009 | CN101436772A Restarting method |
| 05/20/2009 | CN101436771A Power supply under-voltage protection circuit and power supply containing the same |
| 05/20/2009 | CN101436047A Control system of industrial production material transferring equipment |
| 05/20/2009 | CN100490268C Method and circuit for using polarized device in AC applications |
| 05/20/2009 | CN100490267C Single-phase asynchronous motor protector |
| 05/20/2009 | CN100490266C System for power transformer differential protection |
| 05/19/2009 | US7535739 Semiconductor switch |
| 05/19/2009 | US7535736 Switching power supply for reducing external parts for overcurrent protection |
| 05/19/2009 | US7535685 Radio frequency signal coupler, coupling system and method |
| 05/19/2009 | US7535684 Overspeed protection for sensorless electric drives |
| 05/19/2009 | US7535132 Live conductor stringing and splicing method and apparatus |
| 05/19/2009 | US7535126 Dry-type high-voltage load system device and method for preventing chain disconnection/arc discharge of the device |
| 05/19/2009 | US7535120 Power system with low voltage ride-through capability |
| 05/19/2009 | CA2291461C Residential load center with arcing fault protection |
| 05/14/2009 | WO2009059852A2 Starting method for hybrid drives |
| 05/14/2009 | US20090121668 Shutdown path performance test for permanent magnet ac motor in hybrid powertrain |
| 05/14/2009 | US20090121221 High performance sub-system design and assembly |
| 05/14/2009 | US20090121220 High performance sub-system design and assembly |
| 05/14/2009 | US20090120701 Rotating electrical machine control system and vehicle drive system including rotating electrical machine control system |