| 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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| 02/16/2011 | CN101976821A Power capacitor |
| 02/16/2011 | CN101976820A Processing method of protection sampling signals of variable-frequency electric motor protection device |
| 02/16/2011 | CN101976819A Mine explosion-proof alternative current (AC) vacuum electromagnetic starter |
| 02/16/2011 | CN101976818A Blocking protection method for automobile cooling fan motor |
| 02/16/2011 | CN101976817A Start-up protection method and device for commissioning of electric equipment |
| 02/16/2011 | CN101621216B Data sharing type area protection system based on IEC 61850 |
| 02/16/2011 | CN101097476B Electric power processing system and method thereof |
| 02/15/2011 | US7889473 Combination current sensor and relay |
| 02/15/2011 | CA2590792C Load drive controller and control system |
| 02/10/2011 | WO2011016854A1 Soft switching using a lossless snubber circuit in a power converter |
| 02/10/2011 | WO2011015903A1 Electronic device with protection circuit |
| 02/10/2011 | WO2011015105A1 Protection device and protection method for through power network fault of double-fed induction generator |
| 02/10/2011 | DE102009034887A1 Supply device for providing electrical energy at load circuit for charging electric vehicle, comprises safety and monitoring device separately associated with load |
| 02/09/2011 | CN201742631U Power supply circuit of electrodeless lamp |
| 02/09/2011 | CN201742366U Controller of induction motor of speed-less sensor |
| 02/09/2011 | CN201742339U Integrated solar control panel |
| 02/09/2011 | CN201742286U Novel power semiconductor integration component |
| 02/09/2011 | CN201742165U Safe on-line monitor device for ground states |
| 02/09/2011 | CN201742139U Charger |
| 02/09/2011 | CN201742128U Charging unit for electrombile |
| 02/09/2011 | CN201742109U Portable mobile terminal power supply |
| 02/09/2011 | CN201742083U Electric leakage failure alarm of arrester |
| 02/09/2011 | CN201742082U Overdischarge protection device for storage battery |
| 02/09/2011 | CN201742081U Input open-phase protection circuit |
| 02/09/2011 | CN201742080U Frequency converter differential input overcurrent protection circuit for centrifugal machine |
| 02/09/2011 | CN201742079U Open phase protector |
| 02/09/2011 | CN201742078U Roller shutter door motor with power failure protection |
| 02/09/2011 | CN201742077U Multifunctional soft limit protector |
| 02/09/2011 | CN201742076U System for protecting post-stage circuit of wind driven generator |
| 02/09/2011 | CN201742075U Simple overcurrent protection machine tool control transformer |
| 02/09/2011 | CN1960104B Battery protecting apparatus and battery protecting circuit |
| 02/09/2011 | CN101971474A Magnetic energy recovery switech having protective circuit |
| 02/09/2011 | CN101969717A Full-effect full-automatic solar street lamp control system |
| 02/09/2011 | CN101969293A Three phase motor energy conservation regulating device |
| 02/09/2011 | CN101969215A Multi-cell parallel application circuit and terminal equipment |
| 02/09/2011 | CN101969191A Optical fiber blocking override-avoiding tripping system |
| 02/09/2011 | CN101969190A Dry type low-voltage power capacitor |
| 02/09/2011 | CN101969189A Input over-voltage protection device of frequency converter |
| 02/09/2011 | CN101969188A Resistor short-circuit protective device and protective method used for switching power supply |
| 02/09/2011 | CN101969187A Protective circuit for direct-current motor |
| 02/09/2011 | CN101593971B Failure resonant frequency based protection method |
| 02/09/2011 | CN101499655B Neutral point grounding resistor plant for electrical power system |
| 02/09/2011 | CN101425684B Modular lightning protection device for electric power easy for replacement |
| 02/08/2011 | US7885044 Motor drive device with lock protection function |
| 02/08/2011 | US7884505 Dry-type high-voltage load system apparatus and method of preventing chain breaking and arc discharge for use therewith |
| 02/03/2011 | WO2011013384A1 Protection circuit, battery pack, and charging system |
| 02/03/2011 | WO2011012541A1 Method and device for monitoring a motion quantity on an electric drive in an error-proof manner |
| 02/03/2011 | WO2011012376A1 Method and device for time-controlled jamming detection |
| 02/03/2011 | WO2011012146A1 Method and system for monitoring a cable system of an electric power transmission system |
| 02/03/2011 | US20110026172 Power supply controller |
| 02/03/2011 | US20110026171 Electronic Device for Protecting Against a Polarity Reversal of a DC Power Supply Voltage, and its Application to Motor Vehicles |
| 02/03/2011 | US20110025244 Electric Power Steering System |
| 02/03/2011 | US20110024255 Electrical interrupt system and method for use in a hybrid system |
| 02/03/2011 | DE10261452B4 Motorsteuerung mit einer Steuereinrichtung und einer Sicherheitsvorrichtung zum sicheren Abschalten eines Motors Engine control with a control device and a safety device for safely switching off an engine |
| 02/03/2011 | DE102009034310A1 Switching power supply for direct current motor, has converter provided downstream to rectifier switch, and monitoring circuit switching off converter when rectified voltage or output voltage exceeds predetermined threshold value |
| 02/03/2011 | DE102009025363A1 Anfahrquelle Wechselrichter Anfahrquelle inverter |
| 02/03/2011 | CA2769237A1 Method and system for monitoring a cable system of an electric power transmission system |
| 02/02/2011 | EP2279549A1 Method for detecting an error in an induction machine |
| 02/02/2011 | EP2279548A1 Arc detector and associated method for detecting undesired arcs |
| 02/02/2011 | CN201733266U One-step self-starting device for power restoration of asynchronous motor |
| 02/02/2011 | CN201733263U Digital-display electric motor star/triangle conversion energy-saving protector |
| 02/02/2011 | CN201733260U Safety starter of miniature crane |
| 02/02/2011 | CN201733126U Charging circuit with three-phase multi-way switch and power factor compensation of electric automobile |
| 02/02/2011 | CN201733119U Wind-light complementary controlling-inverting integrated machine |
| 02/02/2011 | CN201733113U Portable mobile power supply |
| 02/02/2011 | CN201733111U Main circuit of active CROWBAR of double-fed wind-driven generator |
| 02/02/2011 | CN201733081U Single-phase ground fault circuit selecting device |
| 02/02/2011 | CN201733080U Direct-current voltage compensating device for power distribution |
| 02/02/2011 | CN201733079U Control and protection circuit of switch electrical appliance |
| 02/02/2011 | CN201733078U Device for protecting terminal of battery |
| 02/02/2011 | CN201733077U Battery protection circuit |
| 02/02/2011 | CN201733076U Protecting device for phase failure display of electric motor |
| 02/02/2011 | CN201733075U Open-phase protector for motor |
| 02/02/2011 | CN201733074U Economical and practical motor open-phase protection device |
| 02/02/2011 | CN201733073U Motor protector realizing protection by positive temperature factor thermistance |
| 02/02/2011 | CN201733072U Power transformer neutral point gap protector |
| 02/02/2011 | CN201733071U Fault operation acousto-optic alarm device of special vehicle air conditioner |
| 02/02/2011 | CN201732719U Special-purpose air switch for intelligent electric energy meter |
| 02/02/2011 | CN201732520U Automatic handbill distributor convenient for extraction |
| 02/02/2011 | CN101964590A Power converter |
| 02/02/2011 | CN101964548A Comprehensive intelligent assembly of power transformer |
| 02/02/2011 | CN101964516A Three-phase four-wire system zero-line failure and open-phase intelligent protector |
| 02/02/2011 | CN101964515A Method for converting boundary element by extra-high voltage direct current transmission line mode voltage S |
| 02/02/2011 | CN101964514A Dry type power capacitor |
| 02/02/2011 | CN101964513A Protection technology for initial abrasion of high voltage motor bearing and device thereof |
| 02/02/2011 | CN101577191B Protection circuit for protecting contact point of relay in high-power circuit |
| 02/02/2011 | CN101426102B Protection method of high frequency head short circuit protection system of digit-analog integrated TV |
| 02/02/2011 | CN101187956B A device and method for realizing simulated DC feedback failure of rail traffic |
| 02/01/2011 | US7881027 Fault condition protection |
| 02/01/2011 | US7880577 Current doubler rectifier with current ripple cancellation |
| 02/01/2011 | US7880450 Switching power supply, control circuit controlling switching power supply and control method of switching power supply |
| 02/01/2011 | US7880328 Stage-fused transformer loop system and method of rapid diagnosis of fault cable or transformer failure within the system |
| 01/27/2011 | WO2011011711A2 Method and apparatus for detection and control of dc arc faults |
| 01/27/2011 | US20110019444 Method and apparatus for detection and control of dc arc faults |
| 01/27/2011 | US20110019318 Electrical switching apparatus and protection apparatus determining thermal age of another apparatus or a number of insulators |
| 01/27/2011 | US20110018504 System and method for generator phase signal monitoring and control |
| 01/27/2011 | US20110018483 Stator end-winding component monitoring system |
| 01/27/2011 | US20110018482 Twin motor actuator |
| 01/27/2011 | US20110018341 Intelligent power system |
| 01/27/2011 | DE102010027406A1 Electrical appliance e.g. battery-powered drill, has voltage supply supplying load to electric motor, where load is disconnected when electrical voltage of voltage supply below and/or exceeds limit value |