Results 41 to 50 of about 57,453 (157)
High Voltage, EarlyView.ABSTRACT Strong wind–sand weather in Xinjiang threatens power grid safety by increasing transmission line tripping risks. Existing studies focus on sand polarization but neglect the coupled influence of high‐speed airflow and charged sand on gap discharge characteristics.
Jianghai Geng +8 more
wiley +1 more source
Leakage currents on naturally contaminated porcelain and silicone insulators. [PDF]
, 2012 The leakage current measurements on standard post insulators and on rod insulators without sheds were carried out. The porcelain and silicone rubber insulators were tested at Glogow station under the voltage of 75 kV.
Chrzan, K L
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Diance yu yibiaoTo eliminate the threat posed by cracks in porcelain insulators to the stable operation of equipment, an enhanced imaging method for crack defect detection based on active infrared thermography is proposed.
ZHANG Junshuang +4 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT Unmanned Aerial Vehicle (UAV) inspection of overhead transmission line composite insulators allows for the rapid acquisition of large amounts of infrared images of insulators in service, which can be used to analyse their operational status. However, efficiently and accurately analysing these images remains a challenge.
Zhenan Zhou +7 more
wiley +1 more source
Analysis of the boundary load impact on porcelain insulators and DIC test
Scientific ReportsTraditional detection methods for pillar porcelain insulators, both domestically and internationally, are predominantly direct contact-based, which have certain limitations and drawbacks. These methods pose significant operational risks and are incapable
Qin Zhang +4 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT This study presents a comparative analysis of six machine learning algorithms for automated hydrophobicity classification in composite insulators using contour‐based image features. A robust image‐processing pipeline was developed to extract statistical features from water droplet patterns on insulator surfaces, enabling objective ...
Salihu Salisu +2 more
wiley +1 more source
Electric Field and Potential Distribution of Porcelain Insulator using FEM Method
, 2021 The porcelain insulators are investigated with the high voltage transmission line in outdoor condition. The MATLAB finite element simulation are used here to test the performance of the porcelain.
V Muralidhara +5 more
core +1 more source
High Voltage, EarlyView.ABSTRACT This paper presents a comprehensive review of live‐line work on high‐voltage transmission overhead lines, with a focus on insulation performance, air‐gap breakdown and discharge physics under realistic operating conditions. This review primarily covers journal publications from approximately 2014 to 2026, with emphasis on recent developments ...
Mona Ghassemi, Masoud Farzaneh
wiley +1 more source
Leakage Current on Porcelain and Silicone Insulators Under Sea or Light Industrial Pollution [PDF]
, 2012 —The leakage current on heavily polluted silicone rubber insulators is usually smaller than on similarly polluted porcelain insulators. In this paper, results are presented that show that under light contamination, the currents on the two types of ...
Holtzhausen, J P +2 more
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AIP 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