Results 71 to 80 of about 917 (210)

Field Reduction Electrodes for the Possible Improvement in the Pollution Flashover Performance of Porcelain Insulators

, 2009
In this paper an attempt is made to study accurately, the field distribution for various types of porcelain/ceramic insulators used forhigh voltage transmission. The surface charge Simulation method is employed for the field computation.
Reddy, Subba B, Kumar, Udaya
core  

Characteristics and influence of lightning impulse discharge of zero-value insulator strings in heavy rainfall environment

电力工程技术
Heavy rainfall can bridge the sheds of insulators on transmission lines, substations, and converter stations with continuous water columns, leading to electric field distortion.
Bingbing DONG, Yu QIAO, Xia YAO
doaj   +1 more source

Etch–Bleach–Seal Technique in Managing Enamel Hypomineralization: A Case Report With Narrative Literature Review

Case Reports in Dentistry, Volume 2026, Issue 1, 2026.
Background Molar incisor hypomineralization (MIH) opacities significantly affect pediatric patients′ esthetics and psychosocial well‐being. This case is unique as it demonstrates the clinical efficacy of a modified etch–bleach–seal protocol, utilizing a double application of sodium hypochlorite to address deep pigmentations where standard conservative ...
Matine Gharavi, Sara Tavassoli-Hojjati, Zahra Abdolahpour, Hannah Wesley   +3 more
wiley   +1 more source

A Review of Hydrophobicity Measurement and Classification Methods for High‐Voltage Insulators

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
Hydrophobicity is a critical property influencing the performance and reliability of high‐voltage insulators, particularly nonceramic types, by mitigating surface contamination and reducing the risk of flashover. This paper presents a comprehensive review of hydrophobicity assessment techniques, spanning traditional laboratory‐based techniques ...
Christos Zachariades, Salihu Salisu, Aliyu Abubakar, Konstantinos Kopsidas, Deepali   +4 more
wiley   +1 more source

Laser‐Engraved Micro‐Patterned rGO/WPU Composite Structures for Aircraft Applications: Synchronizing Electrothermal De‐Icing and Broadband Microwave Transparency

Advanced Science, Volume 12, Issue 45, December 4, 2025.
While conventional electrothermal materials tend to reflect electromagnetic waves during de‐icing. Inspired by the frequency‐selective surface theory, this paper designs NJPS for rGO/WPU electrothermal coatings based on the traditional Jerusalem structure.
Xu Fu, Yizhou Shen, Lingfeng Zhao, Weixin Zhu, Weilan Liu, Chenliang Li, Yuebin Lin, Zongsheng Ye, Chengfeng Shen   +8 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, B Mallikarjuna *, K N Ravi, N Vasudev   +3 more
core   +1 more source

DC flashover characteristics of iced post insulators in the natural environment

International Journal of Electrical Power & Energy Systems
Icing can cause a significant drop in the electrical performance of insulators, leading to serious power grid disasters. In recent years, power grid disasters caused by icing on insulators have become common.
Zhijin Zhang, Chenyang Wang, Yuanpeng Zhang, Xingliang Jiang, Jianlin Hu   +4 more
doaj   +1 more source

Mechanical property evaluation according to alumina content of aged porcelain insulator

Journal of Materials Research and Technology, 2020
High-efficiency power transmission of is gaining importance in modern society. Studies based on the improvement of quality and performance of materials that are used for fabricating high-voltage insulators are being actively conducted.
Keekeun Kim, Byungwoo Moon, Damhyun Kim, Kibum Park, Chang-Sung Seok, Taeyong Kim, Junsin Yi, In-Hyuk Choi   +7 more
doaj   +1 more source

Analysis of the Effects of Dust Accumulation on 33kV Line Insulators

, 2023
<p><i>High voltage insulators always fail by having invisible and visible cracks and sometimes broken into pieces making the power system vulnerable to preventable losses.
Amadi H.N., Igbogidi O. N.
core   +1 more source

Study of the Electrical Properties of Aluminate Cement Adhesives for Porcelain Insulators. [PDF]

Materials (Basel), 2021
Wan H, Hu Z, Liu G, Xiao J, Wang Y.
europepmc   +1 more source