Open AccessSuitability of Palm Based Oil as Dielectric Insulating Fluid in Transformers
Author(s) -
Norhafiz Azis,
Jasronita Jasni,
Mohd Zainal Abidin Ab Kadir,
Mohd Nazim Mohtar
Publication year - 2014
Publication title -
journal of electrical engineering and technology/journal of electrical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.226
H-Index - 27
eISSN - 2093-7423
pISSN - 1975-0102
DOI - 10.5370/jeet.2014.9.2.662
Subject(s) - mineral oil , flash point , transformer , dissipation factor , materials science , petroleum engineering , transformer oil , dielectric , palm oil , liquid dielectric , environmental science , composite material , pulp and paper industry , voltage , electrical engineering , engineering , chemistry , optoelectronics , metallurgy , agroforestry , organic chemistry
Mineral oil has been widely used as dielectric insulating fluid in transformers due to its excellent performance in-service. However, there are few issues with mineral oil such as it has poor biodegradability and could contaminate the environment if a spillage occurs. With the increasing tight regulation on safety and environment, alternative fluids for mineral oil are currently being investigated and among the suitable candidate is the vegetable oil. There are different types of vegetable oils and one of them is the palm based oil. At the moment, extensive research works are carried out to examine its feasibility to be applied in transformers. This paper will review the previous research works that were carried out to examine the suitability of palm based oil as dielectric insulating fluid in transformers. The physical and chemical properties of palm based oil are studied based on viscosity, acidity, oxidation stability and flash point. Next, the electrical characteristics of palm based oil are examined based on AC breakdown voltage, relative permittivity, dissipation factor and partial discharge.