| 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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| 12/08/2010 | CN101908728A Air-cooled automatic remote control device of transformer |
| 12/08/2010 | CN101534017B Charge-discharge protection circuit for a plurality of lithium batteries |
| 12/08/2010 | CN101510732B Control method for electron beam punching machine acceleration high-voltage power supply and power supply device |
| 12/08/2010 | CN101499544B Battery apparatus, protection circuit, temperature monitoring method and temperature sensor laying method |
| 12/08/2010 | CN101441242B Method for detecting failure current cutting-off time when electric power system out of order |
| 12/08/2010 | CN101425748B Vehicle mounted universal power supply adapter |
| 12/08/2010 | CN101355248B Protective relay system |
| 12/08/2010 | CN101277021B Protection device for assembled cell, and battery pack unit |
| 12/08/2010 | CN101247040B Permanent fault discrimination method for electric power line with shunt reactor |
| 12/07/2010 | US7848124 Overload and short protected soft-start converter |
| 12/07/2010 | US7848123 Current controlled shunt regulator |
| 12/07/2010 | US7848121 Advanced matrix converter and method for operation |
| 12/07/2010 | US7848118 Bi-directional DC-DC converter and method for controlling the same |
| 12/07/2010 | US7848067 Soft start motor control using back-EMF |
| 12/07/2010 | US7848066 Motor drive device and electronic device using the same |
| 12/07/2010 | US7847439 Dry-type high-voltage load system apparatus and method of preventing chain breaking and arc discharge for use therewith |
| 12/02/2010 | WO2010137935A1 Device for the predictive monitoring and thermal protection of motors and electrical machines |
| 12/02/2010 | WO2010136257A1 Over-voltage protection for inverters having an emv filter on the input side |
| 12/02/2010 | US20100301816 Field winding type generator-motor |
| 12/02/2010 | US20100301814 Synchronous generator protection |
| 12/02/2010 | DE19913818B4 Fahrzeugheizung und Vorrichtung Heater and apparatus |
| 12/02/2010 | DE102009022167A1 High voltage system for use in electrically drivable motor vehicle, has high voltage intermediate circuit provided with central and actively controllable discharge circuit, and consumer comprising passive discharge circuit |
| 12/02/2010 | DE102008059226B4 Elektrowerkzeuggerät Electric power tool |
| 12/02/2010 | CA2763436A1 Overvoltage protection for inverters that comprise an emc filter at their input end |
| 12/01/2010 | EP2256892A1 Driving controller of ac motor |
| 12/01/2010 | EP1969693B1 Protective circuits for secondary battery packs |
| 12/01/2010 | EP1762001B1 Circuit arrangement and method for adjusting the power input of a load which can be operated on a direct current supply network |
| 12/01/2010 | EP1508150B1 Overvoltage protection device |
| 12/01/2010 | CN201663581U Storage battery-powered compressor driving controller |
| 12/01/2010 | CN201663555U Synchronous rectification DC power supply |
| 12/01/2010 | CN201663554U High-power rectifier |
| 12/01/2010 | CN201663552U Single chip microcomputer purified alternating-current voltage-stabilized power supply control board |
| 12/01/2010 | CN201663453U Small-sized wind power generation synchronization sine wave inverter with overpressure cut-off protection function |
| 12/01/2010 | CN201663437U Overtemperature protection device of low voltage plug-in type bus |
| 12/01/2010 | CN201663436U Battery charging protective circuit for high voltage direct current system |
| 12/01/2010 | CN201663435U Automatic protection circuit of flexibly-packed lithium battery |
| 12/01/2010 | CN201663434U Electric protection device for DC circuit of inverter |
| 12/01/2010 | CN201663433U Protecting device for preventing short circuit caused in current transformer |
| 12/01/2010 | CN201663432U Motor protector |
| 12/01/2010 | CN201663431U Internal and external leakage protection device of electric water heater |
| 12/01/2010 | CN201659865U Vehicle-mounted multifunctional equipment |
| 12/01/2010 | CN101902179A Modularized integrated control and protective switching device |
| 12/01/2010 | CN101902037A Distributed single-phase earth fault isolation method in low-current earthed system |
| 12/01/2010 | CN101902036A Power line protection switching device |
| 12/01/2010 | CN101902035A Direct current voltage compensation device for power distribution |
| 12/01/2010 | CN101902034A Short-circuit protection device for switching device |
| 12/01/2010 | CN101902033A Intelligent protection device with zero pressure drop |
| 12/01/2010 | CN101902032A Electric motor protection system |
| 12/01/2010 | CN101902031A Safe driving control circuit for intelligently monitoring artificial pancreas in real time |
| 12/01/2010 | CN101900790A Relay failure detecting device |
| 12/01/2010 | CN101540496B Measuring and protecting device of output current of chain-type inverter |
| 12/01/2010 | CN101515716B Current protection method of feeder line containing distributed power |
| 12/01/2010 | CN101431230B Transforming plant integrated protection system based on IEC61850 |
| 12/01/2010 | CN101414747B Overcurrent protective device for DC brush motor |
| 12/01/2010 | CN101399491B Overcurrent protection circuit for photovoltaic DC-to-AC converter |
| 12/01/2010 | CN101388544B Double loop cross wire failure type discriminating method for stabilizing control system |
| 12/01/2010 | CN101364136B Ultra low dropout voltage regulator |
| 12/01/2010 | CN101361243B Protective device having a circuit breaker, in particular a low-voltage circuit breaker |
| 12/01/2010 | CN101304228B Armoured flame-proof type switch transformer type flexible starting equipment |
| 12/01/2010 | CN101119035B Single unit protection circuit module and battery pack using the same |
| 12/01/2010 | CN101034816B Protection device for non-common ground buses |
| 12/01/2010 | CN101010847B Method and apparatus for preventing overheating in an electronically commutated motor assembly |
| 11/30/2010 | US7843711 Switching transistor driver circuit controlling power supply to the load |
| 11/30/2010 | US7843672 Input/Output regulating circuitry with self-electrostatic-discharge protection |
| 11/30/2010 | US7843671 Electric machine control system |
| 11/30/2010 | US7843670 Isolated switched maintain power signature (MPS) and fault monitoring for power over Ethernet |
| 11/30/2010 | US7843175 Method and apparatus for controlling excitation |
| 11/25/2010 | WO2010133717A1 Method for activating the counter of a sectionalizer |
| 11/25/2010 | WO2010133532A2 Discharging a capacity provided at the output of an inverter |
| 11/25/2010 | US20100296219 Spark gap protection device |
| 11/25/2010 | US20100296205 System and method for preventing, protecting oltc from fire and/or transformer from explosion |
| 11/25/2010 | US20100296204 Control device of power supply circuit |
| 11/25/2010 | US20100295493 Hvac equipment phase and voltage monitor and control |
| 11/25/2010 | US20100295492 Methods and systems for detecting current sensor error |
| 11/25/2010 | DE102008025986B4 Überspannungsschutzvorrichtung für ein spannungsempfindliches Leistungshalbleiterbauteil Overvoltage protection device for a voltage-sensitive power semiconductor component |
| 11/24/2010 | EP2254224A1 Method for discharging a filter capacitor at the output of an inverter device and inverter device |
| 11/24/2010 | EP2171488B1 Method for locating a ground fault according to the distance protection principle and electric distance protection device |
| 11/24/2010 | CN201656908U Frequency-changing and energy-saving control cabinet for oil pumping unit |
| 11/24/2010 | CN201656898U AC asynchronous motor vector controller |
| 11/24/2010 | CN201656890U Electric vehicle controller |
| 11/24/2010 | CN201656801U Vehicular intelligent digital-display electronic rectifier |
| 11/24/2010 | CN201656755U Super-power IGBT (Insulated Gate Bipolar Translator) driving and protecting circuit |
| 11/24/2010 | CN201656675U Intelligent straight-stroke electric actuator |
| 11/24/2010 | CN201656569U Measurement and monitoring indicator special for clean operating room |
| 11/24/2010 | CN201656538U Constant-current charger of miniature storage battery |
| 11/24/2010 | CN201656519U Portable mobile power supply |
| 11/24/2010 | CN201656458U Online monitoring protective device for microcomputers |
| 11/24/2010 | CN201656457U Distribution line troubleshooting control system |
| 11/24/2010 | CN201656456U Supergrid short-circuit current limiting device |
| 11/24/2010 | CN201656455U Low-current grounding line selection device based on FT3 transport protocol |
| 11/24/2010 | CN201656454U Direct-current traction power supply switch cabinet circuit testing device |
| 11/24/2010 | CN201656453U Three-halves connection temporary protection testing apparatus |
| 11/24/2010 | CN201656452U Electromagnetic switch circuit for starter |
| 11/24/2010 | CN201656451U Protective circuit for charger battery |
| 11/24/2010 | CN201656450U Short circuit detector for DC circuit of AC-DC-AC voltage type frequency converter |
| 11/24/2010 | CN201656449U Protection circuit of electronic transformer |
| 11/24/2010 | CN201656448U Three-phase motor protector |
| 11/24/2010 | CN201656447U Phrase failure and overload protective device for three-phrase motor |
| 11/24/2010 | CN201656446U Protecting device for automatically and intelligently monitoring pressure of 3M7990 ball polishing machine in real time |
| 11/24/2010 | CN201656445U Multifunctional motor protector |