| 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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| 01/31/2013 | US20130027818 Transformer instrumentation and metering system |
| 01/31/2013 | US20130027816 Supraconductive coil transition detector |
| 01/31/2013 | DE102011108417A1 Antriebssystem und Verfahren zum Betreiben eines Antriebssystems Drive system and method of operating a drive system |
| 01/31/2013 | DE102011079918A1 Transformator-Teilschaltung Transformer subcircuit |
| 01/31/2013 | DE102011079723A1 Gleichspannungs-Leitungsschutzschalter DC circuit breaker |
| 01/31/2013 | DE102011052135A1 Method for controlling vacuum pump in braking system of motor vehicle, particularly electric vehicle or hybrid vehicle, involves supplying power in electric motor by power supply device for driving rotor of vacuum pump |
| 01/31/2013 | CA2842825A1 Electric motor clamping system |
| 01/30/2013 | EP2551983A1 System and method for protecting an electrical grid against faults |
| 01/30/2013 | EP2550734A2 Method for operating a brushless electric motor |
| 01/30/2013 | CN202713186U Photovoltaic grid-connected inverter |
| 01/30/2013 | CN202713164U Thickened oil electric thermal recovery heating power supply with fault diagnosing and warning functions |
| 01/30/2013 | CN202713150U DC/DC chopper circuit for electric locomotive auxiliary converter cabinet |
| 01/30/2013 | CN202713138U Control and protection circuit |
| 01/30/2013 | CN202713074U Temperature control device for brushless direct current motor |
| 01/30/2013 | CN202712950U Energy saving charger |
| 01/30/2013 | CN202712932U LCD mobile power supply |
| 01/30/2013 | CN202712911U Control circuit of special power supply for distribution network automation remote terminal |
| 01/30/2013 | CN202712829U Frame type global-function intelligent controller |
| 01/30/2013 | CN202712828U Transformer station incoming wire spare power source automatic switching system |
| 01/30/2013 | CN202712827U Protection device of switch cabinet |
| 01/30/2013 | CN202712826U Digital variable time-delay intelligent electric fluctuation-prevention device |
| 01/30/2013 | CN202712825U Thyristor breakdown protection circuit for electric tool |
| 01/30/2013 | CN202712824U Chargeable cell over-discharge protection circuit |
| 01/30/2013 | CN202712823U Cell overtemperature protecting circuit |
| 01/30/2013 | CN202712822U Protective warning device for output capacitor filtering branch of voltage source converter |
| 01/30/2013 | CN202712821U Integrated protector for motor |
| 01/30/2013 | CN202712820U Secondary protection device for main transformer of controllable silicon welding device and controllable silicon welding device |
| 01/30/2013 | CN202712819U Protection system capable of realizing breaker failure triggering relevant trips of interconnecting transformer |
| 01/30/2013 | CN202712818U Hall sensor short-circuit protection circuit, motor controller and electric car |
| 01/30/2013 | CN202712817U Protection circuit capable of preventing from generating fault because of silicon-controlled rectifier breakdown |
| 01/30/2013 | CN202712770U Universal novel permanent magnetic anti-trip junction box |
| 01/30/2013 | CN202712737U Armoured moving-type alternating-current metal-enclosed switch cabinet |
| 01/30/2013 | CN202710839U Observation mirror for relay protection and operation of automation equipment in electric power system |
| 01/30/2013 | CN102906847A Electrical leakage detection apparatus with unexpected motion blocking function |
| 01/30/2013 | CN102904336A Fault starting method based on regional power grid networking protection |
| 01/30/2013 | CN102904291A Charging device and charging control method |
| 01/30/2013 | CN102904230A Recognition method for regional power grid topological structure in regional power grid concentrated protection process |
| 01/30/2013 | CN102904229A Power distribution network boundary protection method based on secondary-side wave trapper |
| 01/30/2013 | CN102904228A Protection method and protection device of power distribution network |
| 01/30/2013 | CN102904227A Six-sequence component-based double circuit lines on same pole phase difference protection method |
| 01/30/2013 | CN102904226A Self-adaptive distance protection method for distribution network with distributed power supply |
| 01/30/2013 | CN102904225A Pilot protection method for distribution network with distributed power supply |
| 01/30/2013 | CN102904224A Failure rapid protection system of power distribution network |
| 01/30/2013 | CN102904223A System and method for protecting electrical grid against faults |
| 01/30/2013 | CN102904222A Configuration method for regional power grid protection |
| 01/30/2013 | CN102904221A Spare power automatic switching latching method and device for 10kv distribution room of intelligent substation |
| 01/30/2013 | CN102904220A Under-voltage protection method of high-voltage half-bridge driving chip and high-voltage half-bridge circuit |
| 01/30/2013 | CN102904219A Lithium battery charging and discharging protective circuit |
| 01/30/2013 | CN102904218A Battery protection IC and battery device |
| 01/30/2013 | CN102904217A Diode-clamped three-level insulated gate bipolar translator (IGBT) drive protection circuit, diode-clamped three-level (IGBT) drive module, and diode-clamped three-level topology device |
| 01/30/2013 | CN102904216A Motor protection device and motor using same |
| 01/30/2013 | CN102904215A Motor overheat protection method and device |
| 01/30/2013 | CN102904214A Micro electro-mechanical switch (MEMS) based over current motor protection system |
| 01/30/2013 | CN102904213A Lightning protection structure for counterattack shunting of transformer |
| 01/30/2013 | CN102901943A Regional power grid-based sample data exception detection and over-current protection method |
| 01/30/2013 | CN102901936A Poweroff detection method of alternating current power supply and poweroff protection method of direct current inverter compressor |
| 01/30/2013 | CN102157981B High-speed data acquisition and digital signal processing device |
| 01/29/2013 | US8363437 Unidirectional MOSFET and applications thereof |
| 01/29/2013 | US8363370 Over-voltage protection circuit |
| 01/29/2013 | US8362726 Motor controller |
| 01/29/2013 | US8360736 Controller for a motor and a method of controlling the motor |
| 01/24/2013 | WO2013011152A1 Electronic overload relay |
| 01/24/2013 | WO2013010694A1 Method and device for monitoring a ground connector |
| 01/24/2013 | WO2013010591A1 Fault identification and location in a power supply line which is fed from one side |
| 01/24/2013 | DE102011079652A1 Verfahren zum Sperren eines Schalters How to disable a switch |
| 01/24/2013 | DE102011079326A1 Verfahren und Vorrichtung zum Überwachen einer Masseverbindung Method and apparatus for monitoring a ground connection |
| 01/23/2013 | EP2549612A2 Method for locking a switch |
| 01/23/2013 | EP2549606A1 Electronic overload relay |
| 01/23/2013 | CN202696536U In-situ and remote distributed control system (DCS) interlock electric device for electric machine |
| 01/23/2013 | CN202696490U Phase-sequence self-adaptive trigger circuit of three-phase fully-controlled rectifier induction heating power supply |
| 01/23/2013 | CN202696489U 5 V stabilized voltage supply with protection function |
| 01/23/2013 | CN202696470U Direct-current/direct-current converter capable of outputting two voltages |
| 01/23/2013 | CN202696466U Direct-current type output remote-end power supply |
| 01/23/2013 | CN202696451U High-power wind power converter |
| 01/23/2013 | CN202696283U Industrial personal computer (IPC) chassis of remote-tripping and intertripping device |
| 01/23/2013 | CN202696239U Intrinsically safe power supply circuit |
| 01/23/2013 | CN202696234U Safe and energy-saving charger |
| 01/23/2013 | CN202696220U Intermittent electric energy feed-in uninterruptible power supply |
| 01/23/2013 | CN202696219U Solar charging device |
| 01/23/2013 | CN202696169U Boosting reactive power compensation filter device for low voltage side of submerged-arc furnace |
| 01/23/2013 | CN202696161U Integration module capacitor |
| 01/23/2013 | CN202696132U Anti skip-level trip out system for tree form power supply mode |
| 01/23/2013 | CN202696131U Intelligent controller of breaker |
| 01/23/2013 | CN202696130U Bus splitting locking monopole logic circuit of alternating-current station control |
| 01/23/2013 | CN202696129U Bus bar differential structure of booster station in electric one-through connection mode |
| 01/23/2013 | CN202696128U Over-voltage protection module |
| 01/23/2013 | CN202696127U Direct current dragging power supply feeder line unit line testing system |
| 01/23/2013 | CN202696126U 10 kV outgoing line protection circuit |
| 01/23/2013 | CN202696125U Overvoltage and undervoltage protection circuit and electronic equipment |
| 01/23/2013 | CN202696124U Protective circuit of battery pack for wireless measurement-while-drilling apparatus |
| 01/23/2013 | CN202696123U Charging protection circuit |
| 01/23/2013 | CN202696122U Short-circuit protection circuit of multiplexed output power and electronic equipment |
| 01/23/2013 | CN202696121U Power factor correction (PFC) overvoltage protection circuit and switch power supply |
| 01/23/2013 | CN202696120U Direct current (DC) - direct current (DC) booster power output circuit |
| 01/23/2013 | CN202696119U Intelligent motor protection breaker |
| 01/23/2013 | CN202696118U Anti-burning protector of transformer |
| 01/23/2013 | CN202696117U Topological structure of SVG control system based on DSP and FPGA |
| 01/23/2013 | CN202693640U Portable adjustable direct-current voltage supply for frequency converter test |
| 01/23/2013 | CN102893478A Synchronous rectifier control techniques for a resonant converter |
| 01/23/2013 | CN102891606A Switching power supply |