Universiti Teknologi Malaysia Institutional Repository

Surface discharge analysis of high voltage glass insulators using ultraviolet pulse voltage

Suhaimi, Saiful Mohammad Iezham and Bashir, Nouruddeen and Muhamad, Nor Asiah and Abdul Rahim, Nurun Najah and Ahmad, Noor Azlinda and Abdul Rahman, Mohd. Nazri (2019) Surface discharge analysis of high voltage glass insulators using ultraviolet pulse voltage. Energies, 12 (2). pp. 1-26. ISSN 1996-1073


Official URL: http://dx.doi.org/10.3390/en12020204


Surface discharges are precursors to flashover. To pre-empt the occurrence of flashover incidents, utility companies need to regularly monitor the condition of line insulators. Recent studies have shown that monitoring of UV signals emitted by surface discharges of insulators is a promising technique. In this work, the UV signals’ time and frequency components of a set of contaminated and field-aged insulator under varying contamination levels and degrees of ageing were studied. Experimental result shows that a strong correlation exists between the discharge intensity levels under varying contamination levels and degree of ageing. As the contamination level increases, the discharge level of the insulator samples also intensifies, resulting in the increase of total harmonic distortion and fundamental frequencies. Total harmonic distortion and fundamental frequencies of the UV signals were employed to develop a technique based on artificial neural networks (ANNs) to classify the flashover prediction based on the discharge intensity levels of the insulator samples. The results of the ANN simulation showed 87% accuracy in the performance index. This study illustrates that the UV pulse detection method is a potential tool to monitor insulator surface conditions during service.

Item Type:Article
Uncontrolled Keywords:glass insulator, surface discharges, total harmonic distortion
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:88112
Deposited By: Yanti Mohd Shah
Deposited On:15 Dec 2020 08:12
Last Modified:15 Dec 2020 08:12

Repository Staff Only: item control page