| 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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| 01/27/2011 | DE102009033443A1 Drilling device for use during construction of aircraft, has energy storage arranged within area of housing for providing electrical supply for regulation device, where storage comprises discharge protection circuit |
| 01/27/2011 | DE102009033228A1 Kunststoffverarbeitungsmaschine und Verfahren zum Betreiben einer solchen Plastic processing machine and method for operating such |
| 01/27/2011 | DE102009032067A1 Vorrichtung zum Schutz eines Gleichstrom-Wandlers Device for protecting a direct current converter |
| 01/27/2011 | DE102009023884A1 Elektronisches Vorschaltgerät und Verfahren zum Betreiben mindestens einer Entladungslampe An electronic ballast and method for operating at least a discharge lamp |
| 01/27/2011 | CA2758815A1 Method and apparatus for detection and control of dc arc faults |
| 01/26/2011 | EP2278676A1 Fault direction indicator device and related methods |
| 01/26/2011 | EP2278428A2 Diagnostic system for protecting a tap-changer |
| 01/26/2011 | CN201726333U High-speed inverse power supply |
| 01/26/2011 | CN201726205U AC energy storage cabinet and energy storage power station system |
| 01/26/2011 | CN201726176U Charge control circuit with bidirectional reverse connection protection for storage batteries |
| 01/26/2011 | CN201726172U Charger |
| 01/26/2011 | CN201726122U Self-powered microcomputer protector capable of fetching electricity on basis of high-voltage current transformer |
| 01/26/2011 | CN201726121U High-speed motor train unit high-voltage equipment trunk |
| 01/26/2011 | CN201726120U DC voltage reduction open circuit protector |
| 01/26/2011 | CN201726119U Intelligent fault locating and protection system for distribution grid |
| 01/26/2011 | CN201726118U Harmonic protection device for capacitor |
| 01/26/2011 | CN201726117U Motor protective circuit breaker |
| 01/26/2011 | CN201726116U Voltage sag protection controller |
| 01/26/2011 | CN201726115U Voltage fluctuation delay protective device of contactor |
| 01/26/2011 | CN201726114U Integral metering protector of large power motor |
| 01/26/2011 | CN201726113U Phrase automatic control switch cabinet |
| 01/26/2011 | CN201726112U Motor protector |
| 01/26/2011 | CN201726111U Temperature monitoring intelligent device for 10-20kV transformer |
| 01/26/2011 | CN201726110U Distribution-transformer induced frequency-discrimination open-phase wireless alarm |
| 01/26/2011 | CN201726109U Relay protector based on Digital Signal Processor (DSP) and Complex Programmable Logic Device (CPLD) |
| 01/26/2011 | CN201726108U Digital protection measuring and control device |
| 01/26/2011 | CN201726105U Multifunctional air conditioner protection circuit |
| 01/26/2011 | CN201725429U Solar motor vehicle velocity-measuring system |
| 01/26/2011 | CN201724988U Input phase failure detector for power unit of high-voltage frequency converter |
| 01/26/2011 | CN201724751U Temperature monitoring device of capacitor and reactor |
| 01/26/2011 | CN101959650A Electric rotating tool, control method, and program |
| 01/26/2011 | CN101958642A Design method for anti-interference switch power supply of engineering mechano-electronic device |
| 01/26/2011 | CN101958575A Automatic control energy saving system for solar energy generation storage and valley power consumption storage |
| 01/26/2011 | CN101958568A Electric direct-current-operated switching power supply and storage battery pack management method thereof |
| 01/26/2011 | CN101958536A Distribution network failure isolation and quick power service restoration decision support system |
| 01/26/2011 | CN101958535A Microcomputer type frequency and voltage automatic control system |
| 01/26/2011 | CN101958534A Electrostatic discharge module and mobile communication device with electrostatic discharge module |
| 01/26/2011 | CN101958533A Current sensing resistor short circuit protection device and method for isolated power supply |
| 01/26/2011 | CN101958532A Device and method for over-current protection of DC-DC converter |
| 01/26/2011 | CN101958531A Start short-circuit protection device and method for DC-DC converter |
| 01/26/2011 | CN101958530A Main transformer differential protection CT polarity check method of pumped storage power station |
| 01/26/2011 | CN101958526A Power distribution system and electrical switching apparatus employing a filter trap circuit to provide arc fault trip coordination |
| 01/26/2011 | CN101957877A Over-line fault network equating method of multi-circuit transmission lines in one tower with different voltage classes |
| 01/26/2011 | CN101527301B Battery protection ic chip module |
| 01/26/2011 | CN101483338B Periodic waveform sampling data compression system and method for electric power system |
| 01/26/2011 | CN101425683B Secondary clamping board device for electrical power system relay protection |
| 01/26/2011 | CN101340083B Bearing current measuring and protecting apparatus of three-phase cage type induction motor |
| 01/25/2011 | US7875822 Ablative-based multiphase current interrupter |
| 01/25/2011 | CA2547867C Apparatus and method for simultaneously detecting the power state of a plurality of circuit breaker switches |
| 01/20/2011 | WO2010111412A3 Systems, devices and methods for predicting power electronics failure |
| 01/20/2011 | US20110013322 Automotive vehicle charge port with fault interrupt circuit |
| 01/20/2011 | US20110012564 Dc power tool with a safety detection device |
| 01/20/2011 | DE19745597B4 Verfahren zur Steuerung und Regelung der Verstellbewegung eines translatorisch verstellbaren Bauteils in Fahrzeugen Method for controlling and regulation of the adjusting movement of a translatory displaceable component in vehicles |
| 01/20/2011 | DE102009031875A1 Method for operating three-phase alternating current motor, involves opening electrically actuated switching point for currentless switching of three-phase alternating current motor |
| 01/20/2011 | DE102009031138A1 Switching device, particular circuit breaker, for selectively switching off electrical conductor, comprises multiple current branches, where multiple switching elements are opened by triggering one of multiple overload releasing elements |
| 01/20/2011 | DE102009027665A1 Elektronisch kommutierter Elektromotor mit einem Verpol- und Überspannungsschutz und Verfahren Electronically commutated electric motor with reverse polarity and over-voltage protection and procedures |
| 01/19/2011 | EP2276136A1 Excess voltage protection for inverter with input EMC filter |
| 01/19/2011 | EP2276135A1 Load circuit protection device |
| 01/19/2011 | CN201717823U Excitation device of small-sized water wheel generator |
| 01/19/2011 | CN201717818U Drive controller of eddy current retarder |
| 01/19/2011 | CN201717817U Positive and negative rotation over-current protection circuit module for motors |
| 01/19/2011 | CN201717799U Gas shielded submerged arc weld digital power supply system with double ARM control |
| 01/19/2011 | CN201717794U Capacitor voltage reducing circuit using impedance input filter |
| 01/19/2011 | CN201717793U Power switch circuit for welding machine |
| 01/19/2011 | CN201717666U Switch power supply with rechargeable battery for spare |
| 01/19/2011 | CN201717660U Intelligent repairing generator system |
| 01/19/2011 | CN201717643U Intelligent battery pack with protection function |
| 01/19/2011 | CN201717633U Silicone tube electric generator and circuit protector |
| 01/19/2011 | CN201717619U High-voltage breaker single-phase ground protection measurement and control system |
| 01/19/2011 | CN201717618U Microcomputer protecting deice with anti-bouncing function |
| 01/19/2011 | CN201717617U Overvoltage protective device for high-voltage thyristor |
| 01/19/2011 | CN201717616U Surge protection device on zero power consumption board |
| 01/19/2011 | CN201717615U Motor protector |
| 01/19/2011 | CN201717614U Over-current and three-phase imbalance detecting protection device for power generator of wind power generating set |
| 01/19/2011 | CN201717613U Jbk transformer control system |
| 01/19/2011 | CN201717612U Television power alternating-current on-off delaying detection protective circuit |
| 01/19/2011 | CN201717611U Anti-tripping latching protection system for microcomputers |
| 01/19/2011 | CN201717610U Constant-current normalizing resistor furnace electric control device |
| 01/19/2011 | CN201717609U Electric water heater safety appliance |
| 01/19/2011 | CN201714575U Two-stage control system for wind power generator |
| 01/19/2011 | CN1639939B Circuit protection method, circuit protection system and distribution system |
| 01/19/2011 | CN101953062A Power converter |
| 01/19/2011 | CN101953047A Driving controller of AC motor |
| 01/19/2011 | CN101953041A Module for controlling a switch in a high voltage electrical substation |
| 01/19/2011 | CN101951217A Diesel locomotive auxiliary engine control device |
| 01/19/2011 | CN101951190A Photovoltaic module capable of being electrically isolated and electrical isolation method thereof |
| 01/19/2011 | CN101951021A Railway power line fault automatic isolation system and method |
| 01/19/2011 | CN101951000A Wind power generation main circuit integrating rectification and unloading |
| 01/19/2011 | CN101950995A Lithium ion power battery pack balanced discharge management system |
| 01/19/2011 | CN101950978A Energy-saving emergency type elevator feedback power system |
| 01/19/2011 | CN101950954A Low-voltage microcomputer protection device |
| 01/19/2011 | CN101950953A Method for overload protection of SMA device |
| 01/19/2011 | CN101950952A Method for position feedback based control for overload protection |
| 01/19/2011 | CN101950951A Protection device for multiple monitoring of motor faults |
| 01/19/2011 | CN101950950A Self-checking protective device of motor before starting |
| 01/19/2011 | CN101950949A Short-circuit shutoff method for insulated gate bipolar transistor (IGBT) of high-power current transformer |
| 01/19/2011 | CN101950948A Intelligent motor management unit of chest of drawers |
| 01/19/2011 | CN101950947A Power management method of security system for vehicles |
| 01/19/2011 | CN101950946A Super-prevention intelligent protector |
| 01/19/2011 | CN101949992A Railway power line permanent fault automatic diagnosis system and method |