Results 41 to 50 of about 114,124 (166)

Experiments on porcelain suspension insulator units [PDF]

open access: yesProceedings of the American Institute of Electrical Engineers, 1916
The author gives a very complete description of the experiments on porcelain suspension insulator units carried on at Stanford University by him and his assistants under the direction of Prof. H. J. Ryan. He explains the preliminary organization necessary, the scope of the tests, and the unusual equipment required to measure the very high resistance of
openaire   +2 more sources

Comparative Analysis of Machine Learning Algorithms for Automated Hydrophobicity Classification in Composite Insulators Using Contour Features

open access: yesHigh 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

Influence of pollution chemical components on AC flashover performance of various types of insulators

open access: yesHigh Voltage, 2019
The pollution on insulators is composed of various chemical components, which threaten the stability of external insulation. However, the existing insulation designs have not taken this issue into consideration.
Zhongyi Yang   +5 more
doaj   +1 more source

Live‐Line Work on High‐Voltage Transmission Overhead Lines: From FRP Flashover to Air‐Gap Breakdown Physics and Emerging Technologies

open access: yesHigh 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

Study on Raindrop Dynamic Behaviour and Its Impact on Insulator Flashover Characteristics Under Airflow Synergy

open access: yesHigh Voltage, EarlyView.
ABSTRACT The synergistic effect of airflow on rainfall behaviour significantly impacts the flashover probability of insulators. This study combines experiments and simulations to investigate the influence of raindrop dynamic behaviour, shed structures and rainfall conditions on flashover characteristics under airflow conditions.
Keqi Huang   +5 more
wiley   +1 more source

Diagnostics of porcelain insulators by partial discharges characteristics

open access: yesИзвестия высших учебных заведений: Проблемы энергетики
RELEVANCE of the research is in the development of a non-destructive method for diagnosing porcelain insulators of high-voltage electrical equipment based on analysis of the characteristics of partial discharges (PDs).
A. M. Gataullin   +3 more
doaj   +1 more source

Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator

open access: yesFrontiers in Energy Research, 2021
The surface discharge development processes of polluted porcelain insulators for power transmission lines are tightly related with the development of leakage current (LC), the characteristics of LC, the insulating condition, and discharge intensity of ...
Chunhua Fang   +5 more
doaj   +1 more source

Research Progress on Electrical Insulation Under Superimposed Voltage With High‐Frequency Harmonics in New‐Type Power Systems

open access: yesHigh Voltage, EarlyView.
ABSTRACT A new‐type power system serves as a critical technical support for the integration of new energy, and its secure and stable operation is of great importance. However, the extensive utilisation of power electronic devices leads to power equipment insulation being subjected to electrical stresses of high‐frequency harmonics, which can easily ...
Shengtao Li   +4 more
wiley   +1 more source

A correlation network approach to analyze the influence of geothermal environment on porcelain insulator [PDF]

open access: yes, 2012
This paper is to explain to what extent geothermal environment influences the quality of porcelain insulator. For that purpose, first, the equality of the correlation structure of clean porcelain insulator and that of polluted one in geothermal ...
Yusoff, Nur Syahidah   +1 more
core  

Effect of coating material on the electrical characteristics of porcelain insulator

open access: yes, 2020
The nature of overhead porcelain insulators that mounted and exposed to environment may prompt the deposition of contamination sources on its surface.
Ismail, Muhammad Nafis   +4 more
core   +1 more source

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