Optimum Electrical and Dielectric Performance of Multi-Walled Carbon Nanotubes Doped Disposed Transformer Oil

Energies

WanFathul Hakim Wan Zamri¹  AbdulRashid Abdul Rahman²  NurAqilah Mohamad Amin²  MardhiahHayati Abdul Hamid²  MuhamadFaiz Md Din²  NurSabrina Suhaimi²  Jianli Wang³ 

[1] Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia;Faculty of Engineering, National Defence University of Malaysia, Kuala Lumpur 57000, Malaysia;Institute for Superconductivity and Electronic Materials, University of Wollongong, Wollongong 2522, NSW, Australia;

关键词: dissipation factor;    electrical breakdown;    lightning impulse;    permittivity;    raman;    resistivity;   

DOI  :  10.3390/en13123181

来源: DOAJ

【 摘 要 】

This paper intends to prepare a nanofluid sample by suspending Multi-walled Carbon Nanotubes (MWCNTs) at 0.005g/L concentration and analyze the behavior of electrical and dielectric properties based on the International Electrotechnical Commision test method. In order to validate the effectiveness of MWCNT nanofluid, alternating current breakdown voltage (BDV), negative polarity lightning impulse (LI), dielectric permittivity, dissipation factor (DF), DC resistivity and Raman structural measurement are executed accordingly. In the following, an analysis of the statistical distribution using the two-parameter Weibull distribution law of BDV and LI are evaluated at four experimental conditions to predict the probability of breakdown occurring at different percentages. Based on the observation, the MWCNT filler has a substantial effect in improving the BDV and LI characteristics of disposed mineral oil. The permittivity, DF and resistivity performance of MWCNT nanofluid from 25 °C to 90 °C also produces comparable and reliable performance as a fresh transformer oil. As for Raman structure, the revolution of transformer oil by doping MWCNT does not disrupt the original chemical structure of mineral oil. Hence, this study proves the improvement of the electrical and the behavior of dielectric properties and chemical structure of nanofluid, providing a huge contribution towards the development of insulating materials for transformer application.

【 授权许可】

Unknown