Results 1 to 10 of about 3,672 (168)

Contamination Deposit and Model of Insulator

open access: yesEnergies, 2023
Insulators are widely used in transmission lines as insulating elements [...]
Zhijin Zhang   +3 more
doaj   +2 more sources

Contamination degree prediction of insulator surface based on exploratory factor analysis‐least square support vector machine combined model

open access: yesHigh Voltage, 2021
This study presents a combined model based on the exploratory factor analysis (EFA) and the least square support vector machine (LSSVM) to predict the contamination degree of insulator surface. Firstly, EFA method is utilised to reduce numerous influence
Jiaxiang Sun   +5 more
doaj   +2 more sources

Harmonic Components Analysis of Emitted Ultraviolet Signals of Aged Transmission Line Insulators under Different Surface Discharge Intensities

open access: yesSensors, 2022
Flashover on transmission line insulators is one of the major causes of line outages due to contamination from the environment or ageing. Power utility companies practicing predictive maintenance are currently exploring novel non-contact methods to ...
Saiful Mohammad Iezham Suhaimi   +4 more
doaj   +1 more source

Insulator Contamination Grade Recognition Using the Deep Learning of Color Information of Images

open access: yesEnergies, 2021
To implement the non-contact detection of contamination on insulators, a contamination severity assessment methodology using the deep learning of the colored image information of insulators can be used.
Da Zhang, Shuailin Chen
doaj   +1 more source

A study of natural contamination characteristics of insulators on ±500 kV Gezhouba-Nanqiao HVDC transmission lines

open access: yesZhejiang dianli, 2023
To study the natural contamination characteristics of insulators on DC lines, measurement points are set between sections Jiaxing and Huzhou of ±500 kV Gezhouba-Nanqiao HVDC transmission lines to carry out natural contamination tests. The equivalent salt
LI Te   +5 more
doaj   +1 more source

Study on Fast Contamination Characteristics of Cap and Pin Insulators in Straight Flow Wind Tunnel Simulation

open access: yesIEEE Access, 2021
Artificial simulation of rapid insulator contamination can obtain the contamination characteristics of suspension insulators in a short time, providing important reference for the electrical design, operation and maintenance of external insulation.
Jing Nan   +5 more
doaj   +1 more source

Contamination Level Monitoring Techniques for High-Voltage Insulators: A Review

open access: yesEnergies, 2022
Insulators are considered one of the most significant parts of power systems which can affect the overall performance of high-voltage (HV) transmission lines and substations.
Luqman Maraaba   +5 more
doaj   +1 more source

LIBS characterization of algal fouling on insulators

open access: yesThe Journal of Engineering, 2021
Algae contamination accumulated on the surface of insulators will affect the electrical properties of insulators. At present, the characterization method of algae contamination is the image method, which determines the distribution of algae contamination
Fuzeng Zhang   +6 more
doaj   +1 more source

Influence of contamination distribution in characterizing the flashover phenomenon on outdoor insulator

open access: yesAin Shams Engineering Journal, 2023
The aim of this work is to model the influence of uneven contamination distribution under various humidity on the pollution flashover voltage of 11 kV porcelain insulator disc. Four scenarios of contamination distribution were proposed to test the sample
Ali Ahmed Salem   +7 more
doaj   +1 more source

Insulator Contamination Perception Based on Feature Fusion of Infrared Image and Meteorological Parameters

open access: yesFrontiers in Energy Research, 2021
Polluted insulators seriously threaten the safe and stable operation of power grids, which attaches great significance to insulator contamination perception.
Hongxia Wang    +5 more
doaj   +1 more source

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