Results 61 to 70 of about 560,992 (202)

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

High 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, Xingliang Jiang, Xingliang Jiang, Xingbo Han, Zhijin Zhang, Jianlin Hu   +5 more
doaj   +1 more source

Monitoring Porcelain Insulator Condition Based on Leakage Current Characteristics

, 2022
Insulator monitoring using leakage current characteristics is essential for predicting an insulator’s health. To evaluate the risk of flashover on the porcelain insulator using leakage current, experimental investigation of leakage current indices ...
Salem Mgammal Al-Ameri, Al-Ameri, Salem Mgammal, Abdul-Malek, Zulkurnain, Mohd Taufiq Ishak, Mohammed, Ammar, Ishak, Mohd Taufiq, Al-Gailani, Samir A., Sherif S. M. Ghoneim, Ali Ahmed Salem, Samir A. Al-Gailani, Kwan Yiew Lau, Ghoneim, Sherif S. M., Lau, Kwan Yiew, Zulkurnain Abdul-Malek, Salem, Ali Ahmed, Alashbi, Abdulaziz Ali Saleh, Abdulaziz Ali Saleh Alashbi, Ammar Mohammed   +17 more
core   +1 more source

The cross-contamination potential of mobile telephones [PDF]

, 2012
The use of mobile devices for professional, business, educational, personal and social purposes has accelerated exponentially over the last decade.
Humphreys, P., Topping, Annie, Topping, A.; id_orcid, White, S., Williamson, H., Rout, S., Humphreys, Paul, White, Stephen, Rout, Simon, Williamson, Hanna   +9 more
core   +1 more source

Industrial Measuring of Pollution Effects on the Operation of High Voltage Insulations [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2010
High voltage insulators are exposed to different ambient and climate conditions the interactions of ambient condition and insulator contamination led the insulators themselves become a proper medium for conduction of current, leaving their effects on the
Mohammad Mehdi Ghanbarian, Mohammadreza Shariati, Mohammad Mohammadi   +2 more
doaj  

Measurement and Analysis of the Leakage Current on the Surface of Polluted Suspension Ceramic Insulator

, 2011
The artificial pollution tests are implemented on an IEC standard suspension insulator, and the leakage current waveforms and frequency characteristics were investigated under different equivalent salt deposit density ESDD and relative humidity.
Xing Liang Jiang, Yan Shi, Qi Fa Wan, Xiong Wu, Tao Xu   +4 more
core   +1 more source

Classification of common discharges in outdoor insulation using acoustic signals and artificial neural network

High Voltage, 2019
Condition monitoring of outdoor insulation systems is crucial to the integrity of distribution and transmission overhead lines and substations. The objective of this study is to use a commercial acoustic sensor along with artificial neural network (ANN),
Satish Polisetty, Ayman El-Hag, Ayman El-Hag, Shesha Jayram, Shesha Jayram   +4 more
doaj   +1 more source

Environmental contamination : a selection of papers presented at the 5th International Conference on Environmental Contamination, Morges, Switzerland, 29 September-1 October 1992 /

, 1993
This book deals with various aspects of environmental contamination. One of the fields considered in this work is atmospheric pollution. This has become a major problem of our time, and could soon develop into a scandal through the overestimation of the ...
Vernet, J.-P.(Jean-Pierre), International Conference on Environmental Contamination(5th :1992 :Morges, Switzerland)   +1 more
core  

Effects of algae contamination on the hydrophobicity of high-voltage composite insulators

High Voltage, 2019
Algae colonisation has been observed on silicone rubber insulators around the world especially in a subtropical climate because the moderate temperature and moisture could aggravate the growth of algae upon silicone rubber material.
Shifang Yang, Zhidong Jia, Xiaogang Ouyang   +2 more
doaj   +1 more source

A Novel Model for Prediction of Flashover 150kV Polluted Insulator Based on Nonlinear Autoregressive External Input Neural Network

Protek: Jurnal Ilmiah Teknik Elektro
This study aims to use an artificial neural network to forecast the flashover voltage of a polluted high-voltage insulator. Practical tests were conducted on a high-voltage insulator to gather data for the neural network.
Mardini Hasanah, Novizon Novizon, Rusvaira Qatrunnada, Yusreni Warmi, Sitti Amalia, Herris Yamashika   +5 more
doaj   +1 more source

The Influence of Natural Contamination on Pollution Flashover Voltage Waveform of Porcelain Insulators in Heavily Polluted Area

IEEE Access, 2019
It is significant to reveal the characteristics of voltage waveform of porcelain insulator with heavy industry pollution in flashover test. In this study, the contamination of insulator samples came from heavy industry pollution areas was measured.
Lei Lan, Gongda Zhang, Yu Wang, Xishan Wen, Wei Wang, Huan Pei   +5 more
doaj   +1 more source