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access icon openaccess Dielectric characterisation of Fe3P nanoparticles based ester oil

This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)
Received 17/05/2018, Accepted 07/08/2018, Revised 30/07/2018, Published 06/09/2018

The insulation as the root source of failure and ageing assessor makes it a crucial point for any power equipment design. The transformer's insulation requires an efficient dielectric fluid that acts as an ideal electrical insulant and better thermal transporter. The objective of attaining that idealism in dielectric medium leads to the addition of solvents (i.e. additive and other fluids) in the conventional medium as one of its approach. This study presents addition of new magnetic nanoparticle iron phosphide (Fe3P) in insulating oil to achieve improved dielectric strength and withstand capability of the same conventional oil. A comparative study of nanofluids with different concentrations of nanofluids based on different insulating medium (i.e. synthetic ester and natural ester) has been performed. The concentration of additives and role of surfactant positively influences the dielectric characteristics of the base oil. The increase in breakdown strength is observed with a slight concentration of Fe3P nanoparticles added in the insulating medium.

Inspec keywords: nanoparticles; electric strength; power transformer insulation; iron compounds; dielectric materials; nanofluidics; electric breakdown; insulating oils; ageing; magnetic particles

Other keywords: conventional medium; magnetic nanoparticle iron phosphide; synthetic ester; dielectric fluid; breakdown strength; transformer insulation; Fe3P; conventional oil; dielectric medium; dielectric strength; dielectric characterisation; ideal electrical insulant; insulating oil; dielectric characteristics; insulating medium; ester oil; power equipment design; thermal transporter; ageing assessor; natural ester

Subjects: Transformers and reactors; Other heat and thermomechanical treatments; Dielectric breakdown and space-charge effects; Amorphous and nanostructured magnetic materials; Dielectric breakdown and discharges; Dielectric permittivity; Fine-particle magnetic systems

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