Article : Investigation of partial discharges in non-woody kenaf based pressboard under influence of moisture

Nawawi, Zainuddin (2022) Article : Investigation of partial discharges in non-woody kenaf based pressboard under influence of moisture. Indonesian Journal of Electrical Engineering and Computer Scienc, 28 (3). pp. 1309-1321. ISSN 2502-4752

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Abstract

The most crucial parts that decide the transformer’s lifetime are the solid insulation of the power transformer, especially the pressboard and kraft paper. The life of the insulation is significantly influenced by the presence of water in the insulation. This paper presents a study on partial discharge (PD) on the existing normal pressboard (NP) and the newly developed Kenaf�polypropylene pressboard (KPP). Also, the moisture content of the pressboard varied between 0%, 1%, and 3% by the percentage weight of different methods. After the initiation of PD, the surface deterioration analysis was performed by using scanning electron microscopy (SEM). The results from the study revealed that KPP shows superior performance in mitigating PD. At 0%, 1% and 3% moisture contents, KPP showed 89%, 83% and 25% reductions in average PD magnitude, respectively. Overall, the kenaf composite pressboard has better PD resistance, which is one of the things to think about when insulating a transformer.

Item Type:	Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK4125-4399 Electric lighting
Divisions:	03-Faculty of Engineering > 20201-Electrical Engineering (S1)
Depositing User:	Prof Zainuddin Nawawi
Date Deposited:	12 Jun 2023 15:49
Last Modified:	12 Jun 2023 15:49
URI:	http://repository.unsri.ac.id/id/eprint/109434

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