Zobrazeno 1 - 10
of 162
pro vyhledávání: '"insulation defects"'
Autor:
Waqar Hassan, G. Amjad Hussain, Abdul Wahid, Madia Safdar, Haris M. Khalid, Mohamad Kamarol Mohd Jamil
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract Partial discharges (PD) are initiated in electrical equipment during various points of the equipment’s lifecycle. The intensity of PD defects rises continuously with time, which can lead to insulation degradation and reduced operational li
Externí odkaz:
https://doaj.org/article/3b620a18b5c24d71b64cad58990e1ff3
Publikováno v:
电力工程技术, Vol 43, Iss 1, Pp 181-191 (2024)
Ultra high frequency (UHF) partial discharge (PD) detection is a common method for transformer oil-paper insulation defect location. However, the accuracy of PD positioning in practical application is easily affected by noise and sensor layout. In or
Externí odkaz:
https://doaj.org/article/49960d537f884ac890fcac8de625f1e4
Publikováno v:
Global Energy Interconnection, Vol 6, Iss 1, Pp 36-49 (2023)
The insulation aging of cross-linked polyethylene (XLPE) cables is the main reason for the reduction in cable life. There is currently a lack of rapid and effective methods for detecting cable insulation defects in power-related sectors. To this end,
Externí odkaz:
https://doaj.org/article/40cfc50528df4454b8a17cd327aaf99a
Akademický článek
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Autor:
D. A. Ivanov
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 24, Iss 2, Pp 132-146 (2022)
The article is aimed to discuss the results of research on the characteristics of partial discharges on defects of different types in high-voltage insulators - on dielectric rod and contact «terminal rod». The atypical characteristics of partial di
Externí odkaz:
https://doaj.org/article/5cf54b07d8554b53b2eb8182567d2e88
Autor:
D. A. Ivanov
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 24, Iss 1, Pp 151-163 (2022)
THE PURPOSE of the described study is to study the effect of partial discharges on the physical state of previously detected defects in high-voltage insulators. The article describes the results obtained by a complex of non-contact methods for remote
Externí odkaz:
https://doaj.org/article/073b5b316de042b3b3ca07012c81c722
Autor:
Fanjun Kong, Ke Zhao, Jingtan Ma, Tianxin Zhuang, Hongtao Li, Shan Gao, Jianjun Liu, Chaohai Zhang
Publikováno v:
Frontiers in Energy Research, Vol 10 (2022)
Gas-insulated equipment is an important part of the power system owing to its advantages of small footprint, large transmission capacity, and high reliability. Detection of insulation defects partial discharge (PD) is important for its operation and
Externí odkaz:
https://doaj.org/article/211edf1367a444a497b729d04ba06abf
Autor:
Krzysztof Walczak
Publikováno v:
Energies, Vol 16, Iss 5, p 2297 (2023)
The issue of detecting and locating defects generating partial discharges (PDs) is very important for the proper functioning of power grids. Despite the existence of many localization methods, both very large and relatively small objects are still a
Externí odkaz:
https://doaj.org/article/7abd33bdd2c4417e8353c19c9c80fb46
Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 21, Iss 4, Pp 123-133 (2019)
In the electric power industry of Russia and abroad, special attention is paid to the problem of an increase in the number of accidents caused by damage to high-voltage insulators in high-voltage equipment. An analysis of emergencies at substations a
Externí odkaz:
https://doaj.org/article/cdc1af17243a470abf9299e436bbc973
Akademický článek
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