A5063639862- High voltage insulation and dielectric phenomena
- Electrical Fault Detection and Protection
- Vacuum and Plasma Arcs
- Icing and De-icing Technologies
- Technology and Security Systems
- RFID technology advancements
- Smart Materials for Construction
- Industrial Vision Systems and Defect Detection
- Vibration and Dynamic Analysis
- Aerosol Filtration and Electrostatic Precipitation
- Lightning and Electromagnetic Phenomena
- Wireless Power Transfer Systems
- Power Systems Fault Detection
- Wireless Signal Modulation Classification
- Electrical Contact Performance and Analysis
- Advanced Decision-Making Techniques
- Thermal Analysis in Power Transmission
- Electricity Theft Detection Techniques
- Wireless Body Area Networks
- Indoor and Outdoor Localization Technologies
Electric Power Research Institute
2020-2021
In order to improve the intelligent informatization level of electric power production safety and reduce accidents, paper constructs a dynamic perception scheme site that utilizes multi-dimensional information such as personnel location, equipment status, image information. This method uses multi-sensor network realize real-time position work objects, then object identification analysis acquire factors. Static factors are selected through questionnaire historical data, variable precision...
DC arc evolution is a complicated and rapid time-dependent process. To better demonstrate the mechanism of dc without external interference factors, test circuit was built for entire process generation, maintenance, extinction. Two different adjustment models were adopted. The macroscopic performance characteristics analyzed. discharging extinguishing conditions measured compared to results burning candle located under rod-rod air gap. This paper shows that arc's color changes from blue...
Timely extinction of dc fault arc is very important for the stable operation transmission system. However, there are no exact extinguishing parameters reference to design arcing horn. Here, a double-supply experimental platform was built, in which pair Yacob ladder electrodes used achieve whole evolution process from generation, then development until self-extinction finally. Arc performance captured by high-speed camera, and four self-extinguishing conditions were recorded. Furthermore,...
Large current ice-melting method is one of the most effective measures to prevent ice-covered disasters on overhead ground wires. In conventional wiring mode, wire directly connected transmission line tower, and circuit loop cannot be formed, so large hard achieved. Therefore, must insulated meet demands ice-melting. After insulation reconstruction, original form has been changed. The reconstruction influenced lightning protection performance induced voltage this paper, corresponding...
A suitable reclosing time is important to guarantee the reliability of power supply after a temporary failure in dc transmission lines. The design mainly depends on recovery insulation strength. Here, an experimental platform was built that can simulate real situation using vertical extension arcing horn based post arc plasma dissipation. entire macroperformance process, voltage and after-current characteristics were analyzed. times measured under conditions output current from 10 200...
The characteristic values of the leakage current, such as effective value number pulses, etc., can effectively reflect contamination surface insulator. In this paper, a three-piece U70BP porcelain insulator is used test sample. subjected to artificial through mist chamber extract and compared with salt density relative humidity. results show that current waveform more severe humidity environment. increases increase density, obtained by simulating component NaCl power function relationship...
In recent years, insulating tubular bus-bar has been widely used in power systems for its excellent electrical performance. However, as some new equipment, there is still no unified principle at home and abroad, little research done on operating characteristics. This leads to a confused market, abnormal phenomena appear operation. this paper, 35kV which operates abnormally substation studied. According the disintegration phenomena, experiment simulation results, we have suspicion that caused...
The power intelligent tools have implemented wireless communication, positioning, perception, data interaction, and work ticket linkage by the implanted RFID tags. communication performance of tags can be affected material tool, resulting in degradation. In order to learn degradation RFID, this paper first analyzes transmission characteristics main indicators RFID. Secondly, FEKO software is used establish simulate tag, influence implantation depth dielectric constant on tag studied....
The intelligent cabinet for safety tools represents an advanced technology-integrated tool management solution. It accomplishes real-time monitoring, precise management, and convenient access through electronic system, enabling users to remotely check the status location of via terminal devices. Additionally, it incorporates physical lock structures technologies like fingerprint recognition facial ensure that only authorized can tools. By utilizing cloud computing technology, enables data...
For when the number of identification tags is greater than readers, underdetermined blind separation algorithm effect poor and RFID system reading speed slow, this paper proposes a tag anti-collision for in state based on L2,1 norm local sparse constraints. To obtain encoding signals, introduces coordinate constraints so that each data point represented as linear combination several anchor points vicinity, to maintain structure data, only few close are used represent order geometric...
Currently, ice melting devices for distribution networks are not convenient large-scale use in mountainous areas with harsh terrain due to their large size. For some small devices, they cannot cover all common power wire types limited ice-melting length. In this paper, the key components of device compared and analyzed achieve continuous adjustment output current voltage a wide range meet needs different wires lengths lines. Affected by short-circuit impedance rated capacity station...