Effect of Particulate Contamination on Breakdown Voltage of Transformer Oil

CHEN Bin; HAN Chao; LIU Ge

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Effect of Particulate Contamination on Breakdown Voltage of Transformer Oil

更新时间：2025-12-08

- Effect of Particulate Contamination on Breakdown Voltage of Transformer Oil
- Vol. 44, Issue 12, Pages: 3903-3909(2018)
- 作者机构：
  
  重庆工商大学废油资源化技术与装备工程研究中心
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 December 2018，
  
  Published：2018
- 稿件说明：
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CHEN Bin, HAN Chao, LIU Ge. Effect of Particulate Contamination on Breakdown Voltage of Transformer Oil[J]. 2018, 44(12): 3903-3909.
DOI：

CHEN Bin, HAN Chao, LIU Ge. Effect of Particulate Contamination on Breakdown Voltage of Transformer Oil[J]. 2018, 44(12): 3903-3909. DOI：

摘要

变压器油中存在的固体颗粒物极易劣化油液的理化性能

尤其是金属颗粒对绝缘性能的影响更为显著。根据ISO4406标准

采用均匀设计法

配制了24组含Cu、Fe、SiO

的不同粒径不同污染度的颗粒污染物油样并对其进行了击穿电压性能测试

获得了不同组分、颗粒含量对油液击穿电压的影响规律;根据测试数据建立了油样中不同粒径、含量的颗粒物与油样击穿电压之间的支持向量机数学模型。结果表明实验验证集利用所建模型获得的决定系数为0.955 1、均方根误差为0.181×10

-2

;随着Cu、Fe、SiO

颗粒含量的增加

油液的击穿电压减小;颗粒污染物在5～25μm范围内对油液击穿电压影响较为显著

且粒径越大

油液击穿电压值也越大。

Abstract

There are the physical and chemical properties which transformer oil is easily deteriorated by the solid particles in oil

especially the influences of metal particles on the insulation performance of oil is more significant. Based on the ISO4406 standard

we prepared 24 groups of oil samples with different particle sizes and different pollution degree of Cu

and SiO

by a uniform design method. Moreover

we obtained the influence law of different component and particle content on the breakdown voltage of oil according to the test performance of breakdown voltage. According to the test data

we established a mathematical model of support vector machine between particles with different particle size

particle content and breakdown voltage of oil samples. The results show that the determination coefficient is 0.9551 and the root mean

square error is 0.181×10

-2

of the validation set using the model; With the increase of the content of Cu

and SiO

particles

the breakdown voltage of oil is decreased; The contamination of particles in the range of 5～25 μm has a significant influence on the breakdown voltage of oil

and the bigger the particle diameter is

the greater the breakdown voltage of oil will be.

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Related Institution

School of Electrical Engineering, Wuhan University

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