Negative Lightning Impulse Breakdown Characteristics of Pure Water with and without N2 Fine Bubbles

被引：0

作者：

Takamura, Norimitsu ^{[1
]}

Araoka, Nobutaka ^{[1
]}

Kamohara, Seiya ^{[1
]}

Hino, Yuta ^{[1
]}

Beppu, Takuya ^{[1
]}

Otsubo, Takuya ^{[1
]}

Mizusaki, Masayuki ^{[1
]}

Hanai, Masahiro ^{[1
]}

机构：

[1] Fukuoka Univ, Jonan Ku, 8-19-1 Nanakuma, Fukuoka 8140180, Japan

来源：

2018 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (IEEE CEIDP) | 2018年

关键词：

VEGETABLE-OILS; TRANSFORMERS;

D O I：

暂无

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：

Electrical insulating oils have been used for many years in power equipment such as transformers and bushings. However, once oils leak from the equipment, it adversely affects the environment. We therefore focused on pure water as one of environmentally friendly liquid insulating materials, and we have been investigating the basic breakdown characteristics of pure water. This paper presents a study of the negative lightning impulse breakdown voltages of pure water with and without nitrogen fine bubbles (N-2-FBs). The breakdown voltages were investigated using sphere-to-sphere and plane-to-plane electrode configurations. As the result, it was found that N-2-FBs tend not to be weak points of breakdown, but rather to raise the breakdown voltage. It was also found that the diameters of N-2-FBs may vary depending on the produced location in an experimental container.

引用

页码：570 / 573

页数：4