Citation
Thien, Yee Von and Azis, Norhafiz and Jasni, Jasronita and Yunus, Robiah and Ab Kadir, Mohd Zainal Abidin and Yaakub, Zaini
(2018)
Influence of electrode geometry on the lightning impulse breakdown voltage of palm oil.
In: 10th IEEE PES Asia-Pacific Power and Energy Engineering Conference 2018 (APPEEC), 7-10 Oct. 2018, Kota Kinabalu, Sabah, Malaysia. (pp. 317-320).
Abstract
This paper presents a study of lightning impulse breakdown voltage of palm oil under needle/plane and needle/sphere electrode configurations. All tests were carried out at gap distance of 25 mm under both positive and negative polarities. Two types of palm oil and mineral oil were used in this study. The results show that the different electrode geometry has significant impact on the lightning impulse breakdown voltage. It was found that needle/plane geometry has lower breakdown voltage than needle/sphere. The voltage polarity also showed some influence on the lightning breakdown voltage for all fluid samples. Comparing both positive and negative polarities, the percentage of difference between all samples is much higher under needle/plane electrode configuration which can be up to 43%. The positive mean lightning breakdown voltage of palm oil is comparable with the mineral oil.
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