| 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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| 09/04/2013 | EP2633597A1 Voltage balancing of symmetric hvdc monopole transmission lines after earth faults |
| 09/04/2013 | EP2633596A1 A wind turbine generator |
| 09/04/2013 | CN203180800U Twice boost high-voltage pulse power |
| 09/04/2013 | CN203180799U High-voltage pulse power supply based on control of 555 timer |
| 09/04/2013 | CN203180783U Boosted circuit |
| 09/04/2013 | CN203180781U Energy storage boosting module of passive type microcomputer comprehensive protection device |
| 09/04/2013 | CN203180779U Switch power supply provided with output short circuit protection function |
| 09/04/2013 | CN203180776U Switching-type power supply circuit |
| 09/04/2013 | CN203180612U Independent photovoltaic power supply system |
| 09/04/2013 | CN203180593U Ceaseless direct current source for mining gas pipe |
| 09/04/2013 | CN203180590U Novel simple charging device with a solar PV module for charging electric vehicles |
| 09/04/2013 | CN203180580U An intelligent lithium ion charger |
| 09/04/2013 | CN203180529U Active filtering compensation device possessing liquid cooling inversion unit |
| 09/04/2013 | CN203180505U Photovoltaic convergence box controlled remotely |
| 09/04/2013 | CN203180504U Switch cabinet protecting device |
| 09/04/2013 | CN203180503U Arc protection device adopting communication method for transmitting current information |
| 09/04/2013 | CN203180502U Power switch pulse-by-pulse detection protection circuit of vehicle power supply |
| 09/04/2013 | CN203180501U Capacitor protection device for electric power filtering compensation equipment |
| 09/04/2013 | CN203180500U Power supply overvoltage protection circuit and electronic equipment |
| 09/04/2013 | CN203180499U A rectifier protecting circuit |
| 09/04/2013 | CN203180498U Rotation speed high-accuracy monitoring device of high-speed motor |
| 09/04/2013 | CN203180497U 电动机管理控制器 Motor Management Controller |
| 09/04/2013 | CN203173731U Vertical lifting control system for measuring oceanic turbulence |
| 09/04/2013 | CN103283103A Power supply system, vehicle mounted therewith, and method of controlling power storage apparatus |
| 09/04/2013 | CN103281818A Limiting protection circuit for voltage and current of power switch tube |
| 09/04/2013 | CN103281035A Automatic motor identification method and variable frequency motor driving circuit |
| 09/04/2013 | CN103281015A Novel F-C loop configuration circuit |
| 09/04/2013 | CN103281009A Novel control circuit for solar photovoltaic power generation and control method thereof |
| 09/04/2013 | CN103280989A Current converter and control method thereof |
| 09/04/2013 | CN103280886A Networking device with different relay protection doubling backups |
| 09/04/2013 | CN103280877A Space instrument power system with self-healing function |
| 09/04/2013 | CN103280830A Overload control method suitable for large-scale wind power centralized access |
| 09/04/2013 | CN103280786A Method for using two sets of line protection devices and one set of reclosure device cooperatively |
| 09/04/2013 | CN103280785A High-voltage direct-current transmission line protecting method capable of identifying high resistance grounding faults |
| 09/04/2013 | CN103280784A Neutral line breakage protection method and neutral line breakage protector |
| 09/04/2013 | CN103280783A Method for calculating failure critical clearing time based on critical unit pair |
| 09/04/2013 | CN103280782A Relay protection method for clearing dead zone fault of transformer |
| 09/04/2013 | CN103280781A Fault self-healing method for neutral point effective earthing system |
| 09/04/2013 | CN103280780A Fault self-healing method for neutral point non-effective earthing system |
| 09/04/2013 | CN103280779A Auditing processing method for relay protection setting value |
| 09/04/2013 | CN103280778A Looped network shock-free switching off and on device and looped network breaker |
| 09/04/2013 | CN103280777A Circuit protection method and system of double-electrode high-voltage direct current transmission system |
| 09/04/2013 | CN103280776A Method for preventing incorrect operation of differential protection device |
| 09/04/2013 | CN103280775A Insulated gate bipolar transistor parallel output dynamic delay over-current protection circuit |
| 09/04/2013 | CN103280774A Power conversion circuit and driving device thereof as well as switch tube protecting device and method |
| 09/04/2013 | CN103280773A Three-phase motor protector |
| 09/04/2013 | CN103280772A Motor controller overheating judgment and protection circuit |
| 09/04/2013 | CN103280771A Motor controller overcurrent judgment and protection circuit |
| 09/04/2013 | CN103280770A Direct current circuit protector |
| 09/04/2013 | CN103280769A Current transformer open circuit prevention protection device |
| 09/04/2013 | CN103280768A Arc-control device and arc-control method applied in photovoltaic combiner box |
| 09/04/2013 | CN103280767A Brake resistor protection circuit and brake resistor protection method for inverters |
| 09/04/2013 | CN102222887B Under-voltage supervision circuit |
| 09/04/2013 | CN102088245B Drive control device for an electric load |
| 09/04/2013 | CN101969717B Full-effect full-automatic solar street lamp control system |
| 09/04/2013 | CN101888083B Protective device for single-phase transformer applicable to traction substation |
| 09/03/2013 | US8526155 Phase-control switchgear and phase-control method for switchgear |
| 09/03/2013 | US8525491 Vehicle generator |
| 09/03/2013 | US8525463 Malfunction determination device for motor control system |
| 09/03/2013 | US8525456 Electric pump device |
| 09/02/2013 | CA2808510A1 Power supply chain for a synchronous electrical machine, electrical drive system including such a chain and control process for such a chain |
| 08/29/2013 | WO2013068166A3 Method for the safety shutdown of an electrical power supply system and safety device |
| 08/29/2013 | US20130223114 Power conversion apparatus |
| 08/29/2013 | US20130222950 Latch up detection |
| 08/29/2013 | DE102012203006A1 PV-Wechselrichter, NA-Schutz und PV-System PV inverter, NS protection and PV system |
| 08/29/2013 | DE102012101508A1 Method for operating e.g. permanently excited synchronous machine for motor car, involves comparing voltage in intermediate circuit with minimum limit voltage value in circuit, to open converter valves so as to drive machine |
| 08/28/2013 | EP2630714A1 Lithium battery protection circuitry |
| 08/28/2013 | CN203166817U Fixed rotating speed and adjustable rotating speed switching circuit of outdoor direct-current motor of air conditioner |
| 08/28/2013 | CN203166809U High-voltage current-limiting motor protector |
| 08/28/2013 | CN203166807U Remote network-controlled motor control system |
| 08/28/2013 | CN203166737U High voltage frequency converter having under-voltage protection function |
| 08/28/2013 | CN203166560U Battery group safety management system |
| 08/28/2013 | CN203166492U Non-impact opening-closing apparatus of ring network |
| 08/28/2013 | CN203166491U Hardware platform of microcomputer protective device |
| 08/28/2013 | CN203166490U IGBT (Insulated Gate Bipolar Transistor) over-current protection device |
| 08/28/2013 | CN203166489U Digital bus differential protection device |
| 08/28/2013 | CN203166488U Numerical control bender intermediate relay contact protective device |
| 08/28/2013 | CN203166487U Digital low voltage line protector |
| 08/28/2013 | CN203166486U Low-power consumption battery power supply reverse protection circuit |
| 08/28/2013 | CN203166485U Rechargeable power protection device of electronic cigarette |
| 08/28/2013 | CN203166484U Start battery full functional protective plate |
| 08/28/2013 | CN203166483U Lithium ion battery over-temperature protection system |
| 08/28/2013 | CN203166482U Intelligent digital controller for mine rectifier cubicle |
| 08/28/2013 | CN203166481U Adapter protection circuit compatible with wide voltage input |
| 08/28/2013 | CN203166480U High-voltage frequency converter having over-current protection function |
| 08/28/2013 | CN203166479U Low-voltage electric dazzling prevention control device |
| 08/28/2013 | CN203166478U Power saver for automatic powering-off under no-load operation of motor |
| 08/28/2013 | CN203166477U Hardware platform of motor protector |
| 08/28/2013 | CN203166476U Low-voltage power distribution equipment protection device |
| 08/28/2013 | CN203166475U Dry-type distribution transformer safe operation protection instrument |
| 08/28/2013 | CN203166474U Transformer oil tank pressure protection device |
| 08/28/2013 | CN203165190U Emergency safety protection controller of practice and training equipment |
| 08/28/2013 | CN203152489U Electronic cigarette |
| 08/28/2013 | CN103270661A Method and device for controlling an adjusting device of a motor vehicle |
| 08/28/2013 | CN103269194A Drive circuit of two-phase half-wave direct current brushless temperature control fan |
| 08/28/2013 | CN103269193A Major loop circuit of two-phase direct current brushless temperature control fan |
| 08/28/2013 | CN103269190A Driver for driving direct current brushless motor for air-condition fan |
| 08/28/2013 | CN103269166A Frequency converter with pre-charging protection function |
| 08/28/2013 | CN103269143A Two-phase brushless direct current motor |
| 08/28/2013 | CN103269122A Power distribution automatic terminal and method for improving reliability of breaker |