| 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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| 04/10/2013 | CN102005736B On-line monitoring method of state of relay protection equipment |
| 04/10/2013 | CN101986495B Adaptive weak power supply mode longitudinal protection method |
| 04/10/2013 | CN101976827B Method for identifying candidate prevention and control measure of self-adaptive external-environmental electric power system |
| 04/10/2013 | CN101976826B EMD (Empirical Mode Decomposition) based boundary element method for ultra high voltage DC transmission lines |
| 04/10/2013 | CN101930057B Method and system for detecting faults of power batteries |
| 04/10/2013 | CN101924351B Charging and discharging protection device and battery device |
| 04/10/2013 | CN101916979B Graded insulating neutral point integrated sealing clearance device of power transformer |
| 04/10/2013 | CN101882780B Intelligent control module for energy storage motor of tank circuit breaker |
| 04/10/2013 | CN101867204B Battery energy management device of electric vehicle and method |
| 04/10/2013 | CN101682187B Circuit arrangement comprising at least two capacitors that are connected in series |
| 04/10/2013 | CN101673927B Method for starting recloser of extra high-voltage transmission line |
| 04/10/2013 | CN101478240B Digital DC-DC voltage boosting converter |
| 04/09/2013 | US8416593 Switching power supply with over-current protection and electronic device using the same |
| 04/09/2013 | US8416592 Control method for soft switch circuit in switch power supply |
| 04/04/2013 | WO2013045075A1 Protection element having integrated distance protection with real time adaptation of the trigger time for detecting and separating high impedance errors in meshed networks |
| 04/04/2013 | WO2013044965A1 Power semiconductor switch with a modular design with current balance monitoring for fault detection |
| 04/04/2013 | WO2013044961A1 Short-circuit current discharge for a sub-module of a modular multi-stage converter (mmc) |
| 04/04/2013 | WO2013044556A1 Relay protection method for electric furnace transformer |
| 04/04/2013 | WO2013020916A3 Configuration of an iec 61850 teleprotection ied for inter-substation communication |
| 04/04/2013 | US20130083572 Protection for inadvertent missing feedback voltage signal |
| 04/04/2013 | US20130083434 Diagnosis of Over-Current Conditions in Bipolar Motor Controllers |
| 04/04/2013 | US20130082631 Electric power tool, lock state occurrence determination apparatus, and program |
| 04/04/2013 | DE102012108912A1 Diagnose von Überstrombedingungen in Steuerungen bipolarer Motoren Diagnosis of overcurrent conditions in control bipolar motors |
| 04/03/2013 | EP2575227A1 A Superconducting Electrical System |
| 04/03/2013 | EP2574940A1 Lightning surge detector, surge protective device, and management system for surge protective device |
| 04/03/2013 | CN202856627U Variable-frequency power supply preventing leakage protector from malfunctioning |
| 04/03/2013 | CN202856612U Power supply protective circuit |
| 04/03/2013 | CN202856609U Optical fiber driven intelligent power module |
| 04/03/2013 | CN202856378U Three-phase unbalance load compensation device |
| 04/03/2013 | CN202856328U Digitalized low current system grounding protective device |
| 04/03/2013 | CN202856327U Coal mine underground power supply protection system |
| 04/03/2013 | CN202856326U Battery protection circuit |
| 04/03/2013 | CN202856325U Electrocar rechargeable battery reverse connection protection circuit |
| 04/03/2013 | CN202856324U Inverter overvoltage and under-voltage protective circuit |
| 04/03/2013 | CN202856323U Hiccup mode short circuit protection circuit |
| 04/03/2013 | CN202856322U Electronic toilet gearbox bidirectional rotation blocking detection mechanism |
| 04/03/2013 | CN202856321U Dryer motor current alarm device |
| 04/03/2013 | CN202856320U Intelligent electronic protector for mining electromagnetic starter |
| 04/03/2013 | CN202856319U Protective circuit of circuit breaker energy storage motor |
| 04/03/2013 | CN202856318U Lightning protection structure for counterattack current division of transformer |
| 04/03/2013 | CN202856317U LED light bar short circuit protection control circuit |
| 04/03/2013 | CN202855862U Lithium iron phosphate battery pack module of large-current discharge technology |
| 04/03/2013 | CN103026572A Method and arrangement for capacitor bank protection |
| 04/03/2013 | CN103026571A Photovoltaic bipolar to monopolar source circuit converter with frequency selective grounding |
| 04/03/2013 | CN103023134A Switching and protection circuit for standby battery of vehicle-mounted GPS (global positioning system) terminal |
| 04/03/2013 | CN103023081A Mobile power supply with electric quantity detection function |
| 04/03/2013 | CN103023075A Charging and discharging control method of battery, and electronic device |
| 04/03/2013 | CN103023011A Full-automatic quick reverse-connection protective charger |
| 04/03/2013 | CN103023002A Digital IGBT (Insulated Gate Bipolar Transistor) series connection voltage-sharing circuit based on look-up table |
| 04/03/2013 | CN103022995A Mine override trip prevention method |
| 04/03/2013 | CN103022994A Method for achieving fault isolation and recovery of power distribution network with permeability distribution type power supply |
| 04/03/2013 | CN103022993A Adaptive cascade direction interlocking relaying method based on GOOSE (Generic Object Oriented Substation Event) |
| 04/03/2013 | CN103022992A Feeder ground positioning method based on dispersion zero sequence voltage detection |
| 04/03/2013 | CN103022991A Power distribution network fault quick response method based on controller area network (CAN) bus expansion |
| 04/03/2013 | CN103022990A Leakage protection system based on two-line |
| 04/03/2013 | CN103022989A Digital current protection method for alternating-current looped serial power supply mode of subways |
| 04/03/2013 | CN103022988A High-voltage direct-current power transmission system |
| 04/03/2013 | CN103022987A Photoelectric arc light protection device |
| 04/03/2013 | CN103022986A Digital line protection measuring and control device |
| 04/03/2013 | CN103022985A Protection device of closing coil |
| 04/03/2013 | CN103022984A Protection circuit of slapper detonator high voltage discharge switch |
| 04/03/2013 | CN103022983A Array type klystron thermal effect over-current protection method |
| 04/03/2013 | CN103022982A 蓄电池控制电路 Battery control circuit |
| 04/03/2013 | CN103022981A Protective circuit for cascade of multiple battery strings |
| 04/03/2013 | CN103022980A High and low voltage automatic protection circuit of vehicle-mounted system |
| 04/03/2013 | CN103022979A Default phase protection circuit for multi-pulse-wave rectifying circuit |
| 04/03/2013 | CN103022978A Under-voltage protection circuit for multi-pulse-wave rectifying circuit |
| 04/03/2013 | CN103022977A Method for controlling desaturation detection protective circuit in T-shaped three-level inverter |
| 04/03/2013 | CN103022976A Frequency converter output short circuit protection circuit and protection method |
| 04/03/2013 | CN103022975A Motor winding overheat prevention apparatus and motor control apparatus |
| 04/03/2013 | CN103022974A Protection device for split type motor |
| 04/03/2013 | CN103021598A Over-current protecting component |
| 04/03/2013 | CN102354977B Feeder fault handling method |
| 04/03/2013 | CN102279346B Fault line selection method of low current grounding system |
| 04/03/2013 | CN102136728B Flexible combiner and control method thereof |
| 04/03/2013 | CN102013664B Protection device for transformer |
| 04/03/2013 | CN101976819B Mine explosion-proof alternative current (AC) vacuum electromagnetic starter |
| 04/03/2013 | CN101950954B Low-voltage microcomputer protection device |
| 04/03/2013 | CN101908728B Air-cooled automatic remote control device of transformer |
| 04/03/2013 | CN101617466B Adaptive provision of protection function settings of electrical machines |
| 04/02/2013 | US8412966 Voltage sensing circuitry for solid state power controllers |
| 04/02/2013 | US8411474 System and method for protection of a multilevel converter |
| 04/02/2013 | US8411397 Power supply apparatus and method |
| 03/28/2013 | WO2013042517A1 Switch device and breaker control method |
| 03/28/2013 | WO2012123014A3 A current limitation system for limiting the effects of a fault in a dc grid and a method of operating a current limitation system |
| 03/28/2013 | US20130077204 Breaker failure protection of hvdc circuit breakers |
| 03/28/2013 | US20130077194 Protection of motor drive systems from current sensor faults |
| 03/28/2013 | DE102012217330A1 Generator for charging battery, has error detection circuit detecting failure of rectifier, where rectifier transmits error detection signal to controller by output terminal if error detection circuit detects error of rectifier |
| 03/28/2013 | DE102011115243A1 Schutzglied mit integriertem Distanzschutz mit einer Echtzeitanpassung der Auslösezeit zur Detektion und Separierung von hochohmigen Fehlern in vermaschten Netzen Protector with integrated distance protection with real-time adjustment of the tripping time for detection and separation of high-resistance faults in meshed networks |
| 03/28/2013 | DE102011083693B3 Gleichspannungs-Leitungsschutzschalter DC circuit breaker |
| 03/27/2013 | EP2573891A2 Overvoltage protection using a link current sensor |
| 03/27/2013 | CN202840963U Special fly-back switching power supply for electronic refrigeration type water dispensers and ice bar wine cabinets |
| 03/27/2013 | CN202840951U Voltage converter and overvoltage protection circuit thereof |
| 03/27/2013 | CN202840941U Switching power supply with high radiation interference resistance and self-protection capacity |
| 03/27/2013 | CN202840926U Striking-resistant and high-pressure-resistant remote control and delay starting power supply |
| 03/27/2013 | CN202840920U IGBT (insulated gate bipolar transistor) drive circuit |
| 03/27/2013 | CN202840894U Handheld outside-rotor brushless electric tool |
| 03/27/2013 | CN202840837U Energy-saving motor applied to hydraulic pump drive |
| 03/27/2013 | CN202840646U Intelligent power line of notebook computer power supply |
| 03/27/2013 | CN202840643U High-efficiency wireless charger |