Results 11 to 20 of about 711,979 (342)

Comparison of natural contamination accumulation characteristics between composite rod insulators and standard suspended insulator strings

open access: yesThe Journal of Engineering, 2018
In order to attain the pollution characteristics difference between composite rod insulators and standard disc-type suspended insulator which is critical to the insulation selection of transmission line, pollution accumulated on composite rod insulators ...
Li Te   +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

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

Monitoring contamination level on insulator materials under dry condition with a microwave reflectometer [PDF]

open access: yes, 2016
Current techniques used for monitoring the levels of contamination on high voltage insulators, such as leakage current and infrared, are not effective in dry conditions since they require the surface of the insulator to be wetted by fog, rain or snow. If
Jiang, Y.   +5 more
core   +1 more source

Influences of kieselguhr on temperature rise of composite insulator in high‐humidity environment

open access: yesThe Journal of Engineering, 2021
Composite insulators are widely used in the power transmission system. Operating in the outdoor environment, the composite insulator will be inevitably polluted by natural contamination with the increase of service life, and contamination on the surface ...
Tian Chen   +6 more
doaj   +1 more source

Insulator contamination analysis based on laser-induced breakdown spectroscopy [PDF]

open access: yes电力工程技术, 2022
Pollution flashover is one of the main factors threatening the safety of power system. In order to prevent pollution flashover accident,it is necessary to regularly analyze the contamination of insulator surface.
JIN Tao   +5 more
doaj   +1 more source

Intelligent Recognition of Insulator Contamination Grade Based on the Deep Learning of Ultraviolet Discharge Image Information

open access: yesEnergies, 2020
In order to achieve the noncontact detection of the contamination grade of insulators and to provide guidance for preventing the contamination flashover of insulators based on the pollution state, we propose a contamination grade recognition method based
Da Zhang, Shuailin Chen
semanticscholar   +1 more source

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