Investigation on AC breakdown of vegetable oils with insulated electrodes

Citation

Katim, Nurul Izzatul Akma and Ishak, Mohd Taufiq and Mohamad Amin, Nur Aqilah and Razali, S. and Abdul Hamid, Mardhiah Hayati and Mohd Ariffin, Maslina and Azis, Norhafiz (2017) Investigation on AC breakdown of vegetable oils with insulated electrodes. In: International Conference on High Voltage Engineering and Power Systems (ICHVEPS 2017), 2-5 Oct. 2017, Inna Grand Bali Beach, Bali, Indonesia. (pp. 312-316).

Abstract

Most of power transformer design today is still using oil filled type which laminated iron core with paper insulated copper conductors. Oil is an important part in power transformers as electrical insulation, information carrier and cooling medium. Besides oil, paper insulation also plays important role as dielectric material of transformer. The influence of oil especially vegetable-based oil and paper insulation on the dielectric strength of transformer oil has attracted many researchers to do investigation. This paper presents a study of the quasi-uniform field AC breakdown voltages under bare electrodes, paper insulation for barrier and covered electrodes (to replicate the transformer windings) of Palm Oil (PO), Coconut Oil (CO) and Mineral Oil (MO). The data obtained from all tests were analyzed using Gaussian and Weibull distribution to determine the withstand voltages for each type of oils. The experiments were using test cell as specified by IEC 156 with 2.5 mm gap distance under uniform field.

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Additional Metadata

Item Type:	Conference or Workshop Item (Paper)
Divisions:	Faculty of Engineering
DOI Number:	https://doi.org/10.1109/ICHVEPS.2017.8225963
Publisher:	IEEE
Keywords:	Power transformer; Vegetable oil; AC breakdown voltage; Uniform filed; Kraft paper
Depositing User:	Nabilah Mustapa
Date Deposited:	12 Jun 2019 07:33
Last Modified:	14 Jun 2019 00:54
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/ICHVEPS.2017.8225963
URI:	http://psasir.upm.edu.my/id/eprint/69045
Statistic Details:	View Download Statistic

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