钛酸基变压器纳米流体的合成及其湿老化研究

IF 3.8 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
S. Raja, G. Koperundevi
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引用次数: 1

摘要

十多年来,对变压器油基纳米流体的研究一直在进行,以确定其是否适合取代传统的液体绝缘。然而,制备一种具有稳定性和优异击穿特性的变压器油基纳米流体的最佳混合物仍然是一个需要解决的关键问题。因此,为了实现具有良好稳定性的更高BD电压(BDV),分散在油中的纳米颗粒和表面活性剂的重量应至少优化到可能的临界水平。在交流和直流高压下,研究了TiO2纳米颗粒和表面活性剂十六烷基三甲基溴化铵(CTAB)分散矿物油的介电BD特性,该研究称为二氧化钛基变压器纳米流体(TTNF)。用不同重量的TiO2纳米粒子和CTAB合成了一系列TTNF样品,并对局部放电起始电压、交流和直流BDV进行了实验,以确定最佳浓度水平。结果表明,对于用0.00562制备的TTNF,AC和DC BDV分别提高了36.23%和43.07% 重量%的TiO2及其1重量%的CTAB,其稳定约8周。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Titania-based transformer nanofluid: a study on the synthesis for enhanced breakdown strength and its humidity ageing

Researches on the transformer oil-based nanofluids to determine its suitability for replacing the conventional liquid insulation has been consistently happening for more than a decade. Yet, to prepare an optimum blend of transformer oil-based nanofluid with the stability compliance and superior breakdown (BD) characteristics is still a key issue to be addressed. So to achieve the higher BD voltages (BDVs) with good stability, the nanoparticle and surfactant weights dispersed in the oil should be optimised to at least possible critical levels. In this work, dielectric BD characteristic of mineral oil dispersed with TiO2 nanoparticle and surfactant cetyl trimethyl ammonium bromide (CTAB) is been studied with the applied AC and DC high voltages, which is termed as titania-based transformer nanofluid (TTNF) for this study. Series of TTNF samples were synthesised with different weights of TiO2 nanoparticle and CTAB, and the partial discharge inception voltage, AC and DC BDV were experimented to ascertain the optimum concentration level. Results show that the AC and DC BDV enhanced up to 36.23 and 43.07%, respectively, for the TTNF prepared with 0.00562 wt% of TiO2 and its 1% weight of CTAB, which was stable for around eight weeks.

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来源期刊
IET Nanodielectrics
IET Nanodielectrics Materials Science-Materials Chemistry
CiteScore
5.60
自引率
3.70%
发文量
7
审稿时长
21 weeks
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