Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Kwan Yiew Lau"'
Autor:
Ali Ahmed Salem, Rahisham Abd-Rahman, Mohd Taufiq Bin Ishak, Kwan Yiew Lau, Zulkurnain Abdul-Malek, Salem Al-ameri, Samir A. Al-Gailani, Sherif S.M. Ghoneim
Publikováno v:
Ain Shams Engineering Journal, Vol 14, Iss 12, Pp 102249- (2023)
The aim of this work is to model the influence of uneven contamination distribution under various humidity on the pollution flashover voltage of 11 kV porcelain insulator disc. Four scenarios of contamination distribution were proposed to test the sa
Externí odkaz:
https://doaj.org/article/b03cf45a13ee48458e95ece642ecab11
Autor:
Ali Ahmed Salem, Ahmed Allawy Alawady, Kwan Yiew Lau, Wan Rahiman, Zulkurnain Abdul-Malek, Samir Ahmed Al-Gailani, Salem Mgammal Al-Ameri, Enas Ali, Sherif S. M. Ghoneim
Publikováno v:
IEEE Access, Vol 11, Pp 82132-82150 (2023)
Polymeric insulators, in particular silicone rubber (SIR) are lightweight, have good hydrophobicity characteristics, and are easy to carry and install. They are commonly used for outdoor insulation in power lines. However, pollution, UV radiation, te
Externí odkaz:
https://doaj.org/article/45f7f43a6b9849f4992bffbff5ff4fc0
Autor:
Ali Ahmed Salem, Kwan Yiew Lau, Wan Rahiman, Zulkurnain Abdul-Malek, Samir A. Al-Gailani, R. Abd Rahman, Salem Al-Ameri
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-21 (2022)
Abstract The monitoring of leakage current (LC) and voltage characteristics in transmission line insulators is regarded as a good technique for anticipating the physical state of in-service insulators. In the current work, the temporal and frequency
Externí odkaz:
https://doaj.org/article/3024fb46fc8848d39d8e02c4d18cc98a
Pollution Flashover Voltage of Transmission Line Insulators: Systematic Review of Experimental Works
Autor:
Ali Ahmed Salem, Kwan Yiew Lau, Wan Rahiman, Zulkurnain Abdul-Malek, Samir Ahmed Al-Gailani, Nabil Mohammed, R. Abd Rahman, Salem Mgammal Al-Ameri
Publikováno v:
IEEE Access, Vol 10, Pp 10416-10444 (2022)
Over the past decades, extensive experimental-based research works have been carried out to investigate the flashover phenomenon on the performance of polluted transmission line insulators. The critical focus has been on developing methods that can d
Externí odkaz:
https://doaj.org/article/034d8836edf345eb966ec64e9648a635
Publikováno v:
IET Nanodielectrics, Vol 4, Iss 3, Pp 84-97 (2021)
Abstract Cross‐linked polyethylene (XLPE) is commonly used as an insulation material in power cables. Due to the recent advancements in the field of high voltage power transmission and distribution, there is a need for novel cable insulation materi
Externí odkaz:
https://doaj.org/article/3a536635c4c44ec08bdf2de80f161f9a
Autor:
Ali Ahmed Salem, Kwan Yiew Lau, Mohd Taufiq Ishak, Zulkurnain Abdul-Malek, Samir A. Al-Gailani, Salem Mgammal Al-Ameri, Ammar Mohammed, Abdulaziz Ali Saleh Alashbi, Sherif S. M. Ghoneim
Publikováno v:
Materials, Vol 15, Iss 18, p 6370 (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
Externí odkaz:
https://doaj.org/article/586cb65861ab4e6bb0987fe337a8264f
Autor:
Ali Ahmed Salem, Kwan Yiew Lau, Zulkurnain Abdul-Malek, Wenbin Zhou, Salem Al-Ameri, Samir A. Al-Gailani, Rahisham Abd Rahman
Publikováno v:
Polymers, Vol 14, Iss 6, p 1236 (2022)
In this paper, a unique approach based on electrical characteristics observed from measurements of contaminated polymeric insulators was established to calculate the electric field distribution over their surfaces. A case study using two different 33
Externí odkaz:
https://doaj.org/article/6cb9e873271043c28fac163882d05bd1
Publikováno v:
IET Nanodielectrics (2020)
Nanodielectrics have been regarded as a class of material system that can provide significantly improved chemical, mechanical and dielectric properties over conventional microcomposites. This is due to the presence of a high volume fraction of the in
Externí odkaz:
https://doaj.org/article/e6ba0adeddad4f56a857c5d8f259d62d
Autor:
Ali Ahmed Salem, Kwan Yiew Lau, Zulkurnain Abdul-Malek, Nabil Mohammed, Abdullah M. Al-Shaalan, Abdullrahman A. Al-Shamma’a, Hassan M. H. Farh
Publikováno v:
Polymers, Vol 14, Iss 4, p 737 (2022)
The current work contributes an estimate of the time-frequency characteristics of a leakage current in assessing the health condition of a polluted polymeric insulator. A 33 kV polymer insulator string was subjected to a series of laboratory tests un
Externí odkaz:
https://doaj.org/article/c7a9cfe4c5be48d098c7d0e588c92759
Autor:
Rizwan Ahmed, Rahisham Abd Rahman, Arshad Jamal, Ali Ahmed Salem, Bander Saman, Kwan Yiew Lau, Sherif S. M. Ghoneim
Publikováno v:
Polymers, Vol 14, Iss 3, p 516 (2022)
In-depth understanding of the pollution problems such as dry bands and the polymeric aging process requires better determination of electric field strength and its distribution over the polymeric surface. To determine the electric field distribution
Externí odkaz:
https://doaj.org/article/afd91b7c92e548389010729d867ea660