Investigation on the partial discharge characteristics of eco-friendly nanofluid insulation of corn oil nanofluid

IF 3.8 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IET Nanodielectrics Pub Date : 2021-04-16 DOI:10.1049/nde2.12020
Shantha Kumar M, Kasi Viswanathan P, Shree Kumar H
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引用次数: 1

Abstract

The suitability of corn oil nanofluid as an insulation material is studied herein by analysing the partial discharge characteristics. Experiments are conducted on nano-silica modified corn oil at 0.01, 0.05, and 0.1 wt.% mass fractions. Electrode configurations are used to generate partial discharge (PD) sources such as corona discharge, internal discharge, and surface discharge. Partial discharge inception voltage dependency on electrode geometry is studied. Phase-resolved partial discharge analysis (PRPD) at various test conditions is done to understand the influence of live element geometry that causes PD in real-time operations, Weibull statistical analysis of PD parameters like scale parameter, shape parameter, skewness, and repetition rate is evaluated to understand the influence of nanofiller mass fraction in corn oil. The results illustrate that the addition of silica nanoparticles to corn oil has a significant influence on PD characteristics. The PRPD pattern analysis reveals information about the PD dependency on electrode configuration of the test condition. The addition of nanofillers in optimal concentrations without agglomeration can influence the PD characteristics to a certain degree. The test results may be inferred to suggest corn oil-based silica nanofluids as an alternative biodegradable liquid insulation.

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玉米油纳米流体环保型纳米流体绝缘的局部放电特性研究
通过对玉米油纳米流体局部放电特性的分析,研究了玉米油纳米流体作为绝缘材料的适用性。对质量分数分别为0.01、0.05和0.1 wt.%的纳米二氧化硅改性玉米油进行了实验。电极配置用于产生局部放电(PD)源,如电晕放电、内部放电和表面放电。研究了局部放电起始电压与电极几何形状的关系。在不同的测试条件下进行相分辨局部放电分析(PRPD),以了解实时操作中导致局部放电的活单元几何形状的影响;对PD参数(如尺度参数、形状参数、偏度和重复率)进行威布尔统计分析,以了解玉米油中纳米填料质量分数的影响。结果表明,玉米油中添加二氧化硅纳米颗粒对PD特性有显著影响。PRPD模式分析揭示了PD依赖于测试条件的电极配置的信息。在无团聚的情况下,最佳浓度的纳米填料的加入在一定程度上影响了钯的特性。试验结果表明,玉米油基二氧化硅纳米流体可作为可生物降解的液体绝缘材料。
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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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