The Effect of Oil Flow State on The Leakage Current of Oil-Paper Insulation

被引：0

作者：

Zhang, Chunyang ^{[1
]}

Wu, Kai ^{[1
]}

Lv, Zepeng ^{[1
]}

Kang, Xiaoning ^{[1
]}

He, Yifei ^{[1
]}

Chen, Jiaxin ^{[1
]}

Ma, Yuntong ^{[1
]}

Wu, Yang ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect & Power Equipment, Sch Elect Engn, 28 Xianning West Rd, Xian 710049, Shaanxi, Peoples R China

来源：

2022 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (IEEE CEIDP 2022) | 2022年

关键词：

SPACE-CHARGE BEHAVIOR; TRANSFORMER INSULATION; ELECTRIFICATION;

D O I：

10.1109/CEIDP55452.2022.9985278

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Converter transformers used oil circulation to enhance heat dissipation, and the state of flowing oil has a significant effect on the properties of oil-paper insulation. In this paper, the oilpaper insulation between flat electrodes was used as an experimental model, and the effects of different oil velocities and voltage on the leakage current and the space charge distribution were investigated. Under the different electric field, the paper side leakage current and the interface charge of the sample with an oil flow were larger than those in the static state. With the increase of the flow velocity, the leakage current and interface charge first increased and then decreased. This phenomenon was explained in terms of the ionization effect, which was influenced by the flow velocity and thus led to the change of the interface charge accumulation.

引用

页码：236 / 239

页数：4

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