relation: https://khub.utp.edu.my/scholars/20444/
title: Comparative study of moisture treatment techniques for mineral insulating oil
creator: Chairul, Imran Sutan
creator: Ghani, Sharin Ab
creator: Bakar, Norazhar Abu
creator: Khiar, Mohd Shahril Ahmad
creator: Rahim, Nor Hidayah
creator: Din, Mohamad Nazri Mohamad
description: 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.
publisher: Institute of Advanced Engineering and Science
date: 2023
type: Article
type: PeerReviewed
identifier:   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     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174632617&doi=10.11591%2feei.v12i6.5927&partnerID=40&md5=d85b4a85d0b2ba2bae024ae405e4502a
relation: 10.11591/eei.v12i6.5927
identifier: 10.11591/eei.v12i6.5927