| 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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| 07/20/2011 | CN102130445A Anti-burnout protection device of closing coil |
| 07/20/2011 | CN102130444A Method of protecting motor-driven steering system from overheat |
| 07/20/2011 | CN102130443A Dynamic self-adaptive protection device of power capacitor and control method |
| 07/20/2011 | CN102130442A Method for determining parameters of faulty forced excitation de-excitation process of power generator |
| 07/20/2011 | CN102130441A Protection configuration method of flexible direct-current (DC) transmission system of modular multiple-level converter |
| 07/20/2011 | CN102128049A Life information drilling exploration system |
| 07/20/2011 | CN102127835A Fuzzy electricity-saving switch |
| 07/20/2011 | CN101702609B Generator de-excitation method by utilizing auxiliary inversion pulse generator to participate in de-excitation |
| 07/20/2011 | CN101621185B Transformer neutrality point combination electric device |
| 07/20/2011 | CN101577415B Method for judging system instability of relay protection of electric power system |
| 07/20/2011 | CN101493243B Multiple energy resource air conditioning equipment and multiple energy resource power control unit |
| 07/20/2011 | CN101488659B Method for predicting inrush current of three-phase electric power transformer |
| 07/20/2011 | CN101478197B Intelligent electric actuator apparatus based on frequency conversion control technique |
| 07/20/2011 | CN101364730B Input voltage protection circuit |
| 07/20/2011 | CN101074982B Method and apparatus for establishing transformer testable redundant magnetic field |
| 07/19/2011 | US7983062 Minimum on-time reduction method, apparatus, and system using same |
| 07/19/2011 | US7982421 Electric vehicle controller |
| 07/19/2011 | US7982332 Power device for a vehicle |
| 07/19/2011 | US7980085 Compressor diagnostic system |
| 07/19/2011 | CA2489178C Fault location using measurements of current and voltage from one end of a line |
| 07/14/2011 | WO2011083886A1 Charging and power supply device |
| 07/14/2011 | WO2011083029A1 Self-monitoring connection line and operating equipment |
| 07/14/2011 | US20110173428 Computer system, method for booting a computer system, and method for replacing a component |
| 07/14/2011 | US20110170218 Power supply system for an element, among a rotor and a stator of an electric machine, and method for controlling such system |
| 07/14/2011 | US20110169437 One-phase electronically commutated motor |
| 07/14/2011 | US20110169388 Automatic furniture flap type detection |
| 07/14/2011 | US20110169345 Control system |
| 07/14/2011 | DE102010004216A1 Energieversorgungseinrichtung Power supply device |
| 07/14/2011 | DE102009060662A1 Device for testing power source of switch device, has switching-off units electrically connected with digital output terminal, where short circuit of power source of consumer is determined by four-pole networks |
| 07/14/2011 | DE102009036216B4 Photovoltaikanlage mit einer Sicherung zum Trennen eines Wechselrichters von einem Photovoltaikgenerator Photovoltaic system with a backup for separating an inverter of a photovoltaic generator |
| 07/13/2011 | EP2343768A2 Battery system and method for detecting current restriction state in a battery system |
| 07/13/2011 | EP2342824A1 Half-bridge circuit protected against short circuits and having semiconductor switches |
| 07/13/2011 | EP2342791A2 Electronic current interrupt device for battery |
| 07/13/2011 | EP2342790A1 Method and device for activating monitoring by a jamming protection function in an electrical closing system |
| 07/13/2011 | CN201898473U Engine starting controller |
| 07/13/2011 | CN201898449U Power rectifying circuit of intelligent power protector |
| 07/13/2011 | CN201898438U Insulated gate bipolar translator (IGBT) driving circuit used for traction convertor of city rail vehicle |
| 07/13/2011 | CN201898346U Low-temperature charging temperature compensation device |
| 07/13/2011 | CN201898325U Intelligent recloser in power distribution network |
| 07/13/2011 | CN201898324U IGBT (Insulated Gate Bipolar Transistor) drive circuit |
| 07/13/2011 | CN201898323U Last end phase-lacking protection control circuit of motor |
| 07/13/2011 | CN201898322U Intelligent motor protecting device |
| 07/13/2011 | CN201898321U Cooling control circuit of variable frequency motor |
| 07/13/2011 | CN201898320U Automatic protector for orbit electrical equipment |
| 07/13/2011 | CN201898319U Overvoltage protection device of digital voltmeter |
| 07/13/2011 | CN201896528U Electric control device for automobile electric tail gate |
| 07/13/2011 | CN201896190U Wire feed control device of arc spraying machine |
| 07/13/2011 | CN102122886A Circuit and method for detecting inductance peak current of DC-DC (direct current-direct current) converter |
| 07/13/2011 | CN102122881A High-power IGBT drive protection circuit applied to wind power generation |
| 07/13/2011 | CN102122842A Abnormal operation remote alarm device for distribution transformer distribution room equipment |
| 07/13/2011 | CN102122815A Ultra high-speed traveling wave direction pilot protection method, device and system for high voltage transmission line |
| 07/13/2011 | CN102122814A Adaptive reclosing method based on travelling wave segmentation principle for mixed line |
| 07/13/2011 | CN102122813A Switch embedded integrated circuit and method for protecting battery |
| 07/13/2011 | CN102122812A Over-charging protective device for rechargeable battery |
| 07/13/2011 | CN102122811A Protective device starting component for double A/D sampling of electronic transformer in digital substation |
| 07/13/2011 | CN102122734A 电池组 Battery |
| 07/13/2011 | CN102122242A Relay protection logical equation analyzing method |
| 07/12/2011 | US7978487 Switching power supply and over-temperature protection method |
| 07/12/2011 | US7978445 Systems and apparatus relating to wind turbine electrical control and operation |
| 07/12/2011 | US7977925 Systems and methods involving starting variable speed generators |
| 07/12/2011 | US7977902 Method and apparatus for pinch protection for a motor-driven closure system |
| 07/12/2011 | CA2518021C Self-contained, self-snubbed, hid dimming module that exhibits non-zero crossing detection switching |
| 07/07/2011 | WO2011079357A1 System for monitoring oil level and detecting leaks in power transformers, reactors, current and potential transformers, high voltage bushings and similar. |
| 07/07/2011 | US20110164340 Normal-condition-off-type protection element and control unit having the normal-condition-off-type protection element |
| 07/07/2011 | US20110163669 Dc/ac inverter substrate having voltage abnormality detector circuit |
| 07/07/2011 | DE102010003977A1 Overload monitoring and control device electromotor of electric power tool e.g. angle sander, drives electromotor immediately in response to jerking engine operation, according to application of full direct voltage by solid shaft |
| 07/06/2011 | EP2341597A1 Failure diagnosis circuit, power supply device, and failure diagnosis method |
| 07/06/2011 | CN201893754U Variable frequency speed regulator for three-roller machine |
| 07/06/2011 | CN201893723U Simple inverter circuit |
| 07/06/2011 | CN201893692U Circuit of triode parallel array |
| 07/06/2011 | CN201893603U Power supply system with high safety |
| 07/06/2011 | CN201893598U Automatic detection and control charging power supply equipment |
| 07/06/2011 | CN201893550U Anti-islanding protection system for photovoltaic inverter |
| 07/06/2011 | CN201893549U Temperature-humidity protecting circuit of switch cabinet |
| 07/06/2011 | CN201893548U Communication machine for mine protecting device |
| 07/06/2011 | CN201893547U Lightning arrester for electronic equipment |
| 07/06/2011 | CN201893546U Protecting circuit system of electric motor |
| 07/06/2011 | CN201893545U Temperature protection circuit for numerically controlled lathe spindle motor |
| 07/06/2011 | CN201893544U Protecting device of charging device |
| 07/06/2011 | CN201893543U Flashover detecting device |
| 07/06/2011 | CN201893540U Intelligent radio network dispatching digital-type boundary controller complete equipment |
| 07/06/2011 | CN201892696U Heavy-current protection exiting device for synthesis test of direct current converter valve |
| 07/06/2011 | CN102119474A Fast power swing unblocking method and apparatus for distance protection in power system |
| 07/06/2011 | CN102118104A Apparatus and method for protecting overvoltage of high voltage inverter |
| 07/06/2011 | CN102118023A Asymmetric identification method of fiber channel for three-terminal differential protection of T connection line |
| 07/06/2011 | CN102118022A Intelligent protection system |
| 07/06/2011 | CN102118021A Transmission line three-dimensional panoramic model-based fault processing method and system |
| 07/06/2011 | CN102118020A Method of power grid fault record real-time data storage selection mode |
| 07/06/2011 | CN102118019A Modularized multi-level converter sub-module control and protection method |
| 07/06/2011 | CN102118018A Protection circuit with functions of upper limit and lower limit |
| 07/06/2011 | CN102118017A Lightning protection device of wind generating set |
| 07/06/2011 | CN102118016A Charger protection circuit, charger provided with same and manufacturing method thereof |
| 07/06/2011 | CN101383495B Wide area protection control measurement system and method |
| 07/06/2011 | CN101361244B Electronic method for starting compressor |
| 07/06/2011 | CN101295870B Method for discriminating generator stator single-phase ground fault by fundamental wave zero sequence excess current |
| 07/05/2011 | US7974111 DC/DC converter and semiconductor device using DC/DC converter |
| 07/05/2011 | US7973517 Control device for vehicle power converter |
| 07/05/2011 | US7973499 Working vehicle |
| 06/30/2011 | WO2011079155A2 Over voltage protection of a switching converter |
| 06/30/2011 | WO2011078447A1 Integrated chip arrangement structure for a protective circuit for a battery |