eprintid: 20444
rev_number: 3
eprint_status: archive
userid: 1
dir: disk0/00/02/04/44
datestamp: 2026-01-29 06:27:35
lastmod: 2026-01-29 06:27:35
status_changed: 2026-01-29 06:27:35
type: article
metadata_visibility: show
creators_name: Chairul, Imran Sutan
creators_name: Ghani, Sharin Ab
creators_name: Bakar, Norazhar Abu
creators_name: Khiar, Mohd Shahril Ahmad
creators_name: Rahim, Nor Hidayah
creators_name: Din, Mohamad Nazri Mohamad
title: Comparative study of moisture treatment techniques for mineral insulating oil
ispublished: pub
note: Cited by: 1; All Open Access, Gold Open Access
abstract: The presence of moisture is one of the factors that promote degradation of transformer insulating oils and deterioration of cellulose insulation materials in oil-immersed power transformers, which affect the lifespan of the transformers. Realizing the importance of moisture in transformer insulating oils, this study compares the effectiveness of three moisture treatment techniques nitrogen bubbling technique (NBT), molecular sieve technique (MST), and vacuum oven technique (VOT)) for mineral oil (MO). The moisture content and AC breakdown voltage of the MO samples before and after moisture treatment were measured using Karl Fischer coulometric titrator and portable oil tester, respectively, in accordance with the American Society for Testing and Materials (ASTM) D1533 and ASTM D1816 standards. The results showed that NBT is the best moisture treatment technique for the MO, where the NBT reduced 80.79 of moisture present in the oil, followed by MST and VOT, which reduced 72.87 and 42.28 of moisture, respectively. The results also showed that the AC breakdown voltage of the MO samples after moisture treatment was improved owing to the reduction in moisture content. © 2023, Institute of Advanced Engineering and Science. All rights reserved.
date: 2023
publisher: Institute of Advanced Engineering and Science
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174632617&doi=10.11591%2feei.v12i6.5927&partnerID=40&md5=d85b4a85d0b2ba2bae024ae405e4502a
id_number: 10.11591/eei.v12i6.5927
full_text_status: none
publication: Bulletin of Electrical Engineering and Informatics
volume: 12
number: 6
pagerange: 3256 – 3262
refereed: TRUE
issn: 20893191
citation:   Chairul, Imran Sutan and Ghani, Sharin Ab and Bakar, Norazhar Abu and Khiar, Mohd Shahril Ahmad and Rahim, Nor Hidayah and Din, Mohamad Nazri Mohamad  (2023) Comparative study of moisture treatment techniques for mineral insulating oil.  Bulletin of Electrical Engineering and Informatics, 12 (6).  3256 – 3262.  ISSN 20893191