Voltage Distribution of 220 kV GIS under Different Lightning Impulse

被引：0

作者：

Wang Si si ^{[1
]}

Xiong Jun ^{[1
]}

Li Zhi ning ^{[1
]}

Jin Yuhui ^{[2
]}

Che Bin ^{[2
]}

Zhang Liang ^{[2
]}

Wu Bang ^{[2
]}

Li Jun-hao ^{[2
]}

机构：

[1] Guangzhou Elect Power Res Inst, Guangzhou 510000, Guangdong, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Elect Insulaiton & Power Equipment, Xian 710049, Peoples R China

来源：

2016 INTERNATIONAL CONFERENCE ON CONDITION MONITORING AND DIAGNOSIS (CMD) | 2016年

关键词：

GIS; oscillatory lightning impulse; standard lightning impulse; breakdown voltage distribution; BREAKDOWN CHARACTERISTICS; WAVE-FORMS; SWITCHGEARS;

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：

Because of its excellent performance, GIS is widely used in GRID. After produced, manufacturers will assess the insulation of GIS by LI. On the other hand, the power sector will use OLI for on-site testing. The distribution of breakdown voltage on the nodes inside GIS induced by OLI or LI is the base of test result analysis. In order to master the distribution under the two impulses, in this paper, the numerical simulation software ATP EMTP is adopted to simulate the wave propagations in a 220 kV GIS under the two lightning impulses, the voltages on internal nodes induced by the two impulses are obtained and compared. The results show that there will be higher overvoltage under OLI than that under LI. As the distance between measuring point and entrance increasing, the voltage on node drops and the distortion decreases. The results of this paper provide data support for the on-site testing of GIS and judging the insulation of equipment.

引用

页码：558 / 561

页数：4

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