Results 1 to 10 of about 114,124 (166)

Partial substitution of feldspar by alkaline-rich materials in the electrical porcelain insulator for reduction of processing temperature

open access: yesMaterials Research Express, 2022
Porcelain is the most widely used overhead power-line insulator. The demands for porcelain insulators have increased dramatically owing to a sharp increase in the electric power demand and supply.
Eaba Beyene   +4 more
doaj   +2 more sources

Porcelain Insulator Crack Location and Surface States Pattern Recognition Based on Hyperspectral Technology

open access: yesEntropy, 2021
A porcelain insulator is an important part to ensure that the insulation requirements of power equipment can be met. Under the influence of their structure, porcelain insulators are prone to mechanical damage and cracks, which will reduce their ...
Yiming Zhao   +4 more
doaj   +2 more sources

Sensing Method Using Dielectric Loss Factor to Evaluate Surface Conditions on Polluted Porcelain Insulator

open access: yesSensors, 2022
Insulator diagnostics is still a topical issue. No one has yet found out how to accurately determine the condition of all insulators and decide when replacement or maintenance is required.
Ľuboš Šárpataky   +5 more
doaj   +2 more sources

Diagnosis of contamination discharge state of porcelain insulators based on GA-CNN

open access: yesConnection Science, 2023
Porcelain insulators play an important role in power transmission lines. It is of great significance to improve the accuracy of diagnosis of porcelain insulators’ discharge state and ensure the reliability of power supply.
Kegeng Zhang   +3 more
doaj   +2 more sources

Simulation of Contamination Deposition on Typical Shed Porcelain Insulators

open access: yesEnergies, 2017
The contamination deposition characteristics of insulators can be used in the development of antifouling work. Using COMSOL software, numerical simulations on the pollution-deposited performance of a porcelain three-umbrella insulator and porcelain bell ...
Weiping Zhao, Jingang Li, Yukun Lv
exaly   +3 more sources

The Evaluation of Daily Comparative Leakage Currents on Porcelain and Silicone Rubber Insulators Under Natural Environmental Conditions

open access: yesIEEE Access, 2021
In this research, the leakage current (LC) and applied voltage waveforms on samples of installed outdoor porcelain and silicone rubber (SIR) insulators were measured by using a storage digital oscilloscope concurrent with humidity, temperature, and ...
Waluyo   +2 more
doaj   +1 more source

Research on Vibro-Acoustic Detection Method of Porcelain Pillar Insulators [PDF]

open access: yesE3S Web of Conferences, 2023
High-voltage pillar-type porcelain insulators are important components of power plants and substations, and are widely used in power grids. In recent years, various kinds of accidents caused by breakage of pillar insulators have occurred frequently ...
Gao Lei   +9 more
doaj   +1 more source

Optimized Design of Shed Parameters for Polluted Hollow Porcelain Insulators at High Altitude

open access: yesIEEE Access, 2023
The pollution flashover problem of hollow insulators, one of the primary faults in substations, can be improved by optimizing the shed parameters. Combining the artificial pollution test and electric field simulation, this paper studies the optimal shed ...
Ziwei Qiu   +9 more
doaj   +1 more source

Research on splicing method of temperature distribution curve of EHV–UHV long string porcelain insulators

open access: yesAIP Advances, 2022
The infrared thermal image detection method has unique advantages in the field of low zero value diagnosis of porcelain insulators. However, since the length of the extra–ultra-high voltage (EHV–UHV) porcelain insulator string can reach more than 10 m ...
Xiaopo Mao, Xueming Zhou
doaj   +1 more source

Sensing Method Using Multiple Quantities for Diagnostic of Insulators in Different Ambient Conditions

open access: yesSensors, 2022
Insulators are one of the many components responsible for the reliability of electricity supply as part of transmission and distribution lines. Failure of the insulator can cause considerable economic problems that are much greater than the insulator ...
Bystrík Dolník   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy