| 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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| 03/09/2011 | CN201758278U Bus bar controller |
| 03/09/2011 | CN201758277U High-low pressure tank relay-protection integrated automation device |
| 03/09/2011 | CN201758276U Electromotor energy-saving control cabinet |
| 03/09/2011 | CN201758275U Motor protector |
| 03/09/2011 | CN201758274U Interlock protection device for dry type transformer |
| 03/09/2011 | CN101984531A Five-part type terminal protective device of power distribution monitoring system |
| 03/09/2011 | CN101984530A Method of preventing potential overload burning of current transformer |
| 03/09/2011 | CN101540501B Ground electrode circuit protective system and device of high-voltage DC transmission system |
| 03/09/2011 | CN101252271B Safety system for a machine and method for monitoring a safety system |
| 03/09/2011 | CN101209504B 台式工具 Desktop Tool |
| 03/08/2011 | US7902829 Battery management system and driving method thereof |
| 03/08/2011 | US7902804 Method and related circuit for protection against malfunctioning of the feedback loop in switching power supplies |
| 03/08/2011 | US7902781 Adjustment device for a motor vehicle seat |
| 03/08/2011 | US7902777 Method and system for motor oscillatory state detection |
| 03/03/2011 | WO2011023305A1 A method of fault phase selection and fault type determination |
| 03/03/2011 | WO2010144584A3 Interconnection switching system and method for connecting a distributed energy resource to an electrical power system |
| 03/03/2011 | US20110051297 Device, Computer Program Product and Computer-Implemented Method for Backspin Detection in an Electrical Submersible Pump Assembly |
| 03/03/2011 | US20110050154 Electrical switching apparatus including a plurality of rogowski coils and method of calibrating the same |
| 03/03/2011 | US20110050145 Device, Computer Program Product and Computer-Implemented Method for Backspin Detection in an Electrical Submersible Pump Assembly |
| 03/03/2011 | US20110050144 Device, Computer Program Product and Computer-Implemented Method for Backspin Detection in an Electrical Submersible Pump Assembly |
| 03/03/2011 | US20110048823 Hybrid electric vehicle battery thermal management |
| 03/03/2011 | DE102009038060A1 Method for monitoring of determined number of revolutions of engine, involves recovering stator frequency of propelling engine, and examining stator frequency and determined rotor frequency for plausibility |
| 03/02/2011 | EP2290809A1 Control unit of motor for injection molding machine |
| 03/02/2011 | EP2290777A1 Mains surge protection |
| 03/02/2011 | EP2290776A1 Thermal overload relay with voltage-based protection features |
| 03/02/2011 | EP2290775A1 A method of fault phase selection and fault type determination |
| 03/02/2011 | EP2290774A1 Device and method to protect an electric power distribution network against current faults |
| 03/02/2011 | EP2289138A2 A transformation substation |
| 03/02/2011 | EP1789295B1 Device and method for operation of an electromechanically-operated parking brake |
| 03/02/2011 | EP1522131B1 Circuit and method for protecting against overload of an electric motor |
| 03/02/2011 | CN201754511U Solar photovoltaic storage battery charging and discharging protective controller |
| 03/02/2011 | CN201754501U Reverse-charge prevention circuit of lithium battery protecting circuit |
| 03/02/2011 | CN201754500U Self-releasing overvoltage protector under super high centrifugal acceleration behavior |
| 03/02/2011 | CN201754497U Outdoor high-voltage demarcation circuit breaker |
| 03/02/2011 | CN201753062U Light rail motor overheat alarm device |
| 03/02/2011 | CN101582583B Method for preventing earth current from invading differential protection analog quantity channel to cause false operations |
| 03/02/2011 | CN101488660B Adaptive determination method for differentiating inrush current and failure current of transformer |
| 03/02/2011 | CN101373821B Power unit and safety circuit having the same |
| 03/01/2011 | US7898831 Device and method for limiting drain-source voltage of transformer-coupled push pull power conversion circuit |
| 03/01/2011 | US7898830 System and method of controlling the soft start control voltage of switching regulator in response to output current sensing |
| 03/01/2011 | US7898778 Superconducting coil quench detection method and device, and superconducting power storage unit |
| 03/01/2011 | US7898229 Supply architecture for inductive loads |
| 03/01/2011 | US7898109 Switching power supply controller with built-in supply switching |
| 02/24/2011 | WO2011022165A2 Current limiting apparatus and method |
| 02/24/2011 | WO2011021880A2 System and method for preventing excessive charging or excessive discharging of batteries |
| 02/24/2011 | US20110046856 Method and device for computer-aided detection of jamming of an object |
| 02/24/2011 | US20110043152 Drive control device |
| 02/24/2011 | DE202010011792U1 Schutzschaltkreis einer T8 LED-Beleuchtungsröhre Protection circuit of T8 LED tube lighting |
| 02/24/2011 | DE102009037723A1 Verfahren zum Entladen eines Zwischenkreiskondensators eines Spannungszwischenkreis-Umrichters Discharging an intermediate circuit capacitor of a voltage-source converter |
| 02/24/2011 | DE102009036861A1 Verfahren zur Regelung eines Spannungswandlers, Spannungswandler sowie Betriebsgerät mit einem Spannungswandler Method for regulating a voltage transformer, voltage transformer, and operating device with a voltage converter |
| 02/24/2011 | DE102009036216A1 Pyrosicherung mit Varistoransteuerung zum Trennen eines Wechselrichters von einer Photovoltaikanlage Pyrosicherung with Varistoransteuerung for separating an inverter of a photovoltaic system |
| 02/23/2011 | EP2288019A1 Motor control apparatus |
| 02/23/2011 | EP2286497A2 Method and system for managing a power grid |
| 02/23/2011 | EP1411624B1 Power inverter |
| 02/23/2011 | CN201752106U Control system of redundant high-pressure permanent-magnetic brushless direct current motor |
| 02/23/2011 | CN201751437U Smoke discharging system of texturing machine table |
| 02/23/2011 | CN101981776A System and method for ground fault detection and interruption |
| 02/23/2011 | CN101980419A Automatic control device for vacuum circuit breaker on electric distribution network |
| 02/23/2011 | CN101980263A Method for setting value of relay protection |
| 02/22/2011 | US7895384 Portable terminal and USB device |
| 02/22/2011 | US7893639 Motor control device |
| 02/17/2011 | WO2011020007A1 Reduction of harmonic distortion for led loads |
| 02/17/2011 | US20110038088 Substrate including an esd protection function |
| 02/17/2011 | US20110037430 Safety Switch for Secondary Battery for Electric Vehicle and Charging Discharging System for Secondary Battery for Electric Vehicle Using the Same |
| 02/17/2011 | DE102009043571B3 Fluid-electrical device, has switching device consisting of electrical operatable switch arrangement that is switched in supply line between energy storage and electrical consumer and controllable by electrical switch |
| 02/17/2011 | DE102009037641A1 Brake control device for controlling operating brake function e.g. anti-block function, in hand brake of motor vehicle brake system, has transistors controlled by switching circuit to realize active reverse polarity protection |
| 02/17/2011 | DE102007036027B4 Störungsbehandlung bei von Umrichtern angetriebenen PM-Motorantrieben Disorder treatment for driven by inverters PM motor drives |
| 02/16/2011 | EP2284982A1 Discharge circuit for smoothing capacitor of DC power supply |
| 02/16/2011 | EP2284941A1 Battery pack |
| 02/16/2011 | EP2283552A1 Module for controlling a switch in a high voltage electrical substation |
| 02/16/2011 | EP1661220B1 Live conductor stringing and splicing method |
| 02/16/2011 | CN201750399U Intelligent motor driver |
| 02/16/2011 | CN201750397U Slow-start AC motor driving device |
| 02/16/2011 | CN201750378U Double speed start/stop controller |
| 02/16/2011 | CN201750351U Direct-current (DC) power supply based on inductive energy storage and without electrolytic capacitor |
| 02/16/2011 | CN201750334U Power supply circuit of induction heating electric furnace |
| 02/16/2011 | CN201750233U Digital transformer station grounding wire selection device |
| 02/16/2011 | CN201750183U Charge protection device of lithium iron phosphate battery for communication base station |
| 02/16/2011 | CN201750137U Novel current protection device for mine grid |
| 02/16/2011 | CN201750136U Standby battery protective circuit device |
| 02/16/2011 | CN201750135U Life prolonging and protection device of vehicle battery |
| 02/16/2011 | CN201750134U Insulated gate bipolar transistor protection circuit of electromagnetic oven |
| 02/16/2011 | CN201750133U Automatic motor phase loss, overcurrent and leakage protection switch |
| 02/16/2011 | CN201750132U Intelligent single-phase motor protector |
| 02/16/2011 | CN201750131U Autotransformer protector |
| 02/16/2011 | CN201747531U Lightning-protection blade of wind generating set |
| 02/16/2011 | CN201747521U Dead-zone generating circuit of variable pitch control system driver |
| 02/16/2011 | CN101977016A Singlechip-based induction motor variable frequency speed regulation control system |
| 02/16/2011 | CN101977004A Large current deexcitation loop based on silicon controlled rectifier subject to multi-redundancy trigger of jumper |
| 02/16/2011 | CN101976994A Conversion circuit, method and system for detecting phase sequence of three-phase power supply, and motor |
| 02/16/2011 | CN101976949A Anti-interference rapid current sampling circuit based on difference structure |
| 02/16/2011 | CN101976884A Self-powdered protection device for power transmission and distribution lines |
| 02/16/2011 | CN101976881A On-line integrated device for transformer-protection and winding-deformation monitoring and application method thereof |
| 02/16/2011 | CN101976874A Randomly expandable photovoltaic charge and discharge control device and control method |
| 02/16/2011 | CN101976827A Method for identifying candidate prevention and control measure of self-adaptive external-environmental electric power system |
| 02/16/2011 | CN101976826A EMD (Empirical Mode Decomposition) based boundary element method for ultra high voltage DC transmission lines |
| 02/16/2011 | CN101976825A Short circuit protection circuit for audio power amplifier |
| 02/16/2011 | CN101976824A Automatic battery safety protection system |
| 02/16/2011 | CN101976823A Undervoltage protection circuit for battery |
| 02/16/2011 | CN101976822A Novel power capacitor |