高压电器2017，Vol.53Issue(9)：215-220,6.DOI:10.13296/j.1001-1609.hva.2017.09.037
基于同频同相原理的GIS设备现场交流耐压试验方法研究及应用
AC Voltage Withstand Test Method for GIS Based on Same-frequency Same-phase Principle
王谦 1龙英凯 1吴高林 1肖前波1
作者信息
- 1. 国网重庆电力公司电力科学研究院,重庆401123
- 折叠
摘要
Abstract
The newly-built GIS and the original part are isolated only by the bus bar isolating switch.If the conventional frequency-modulated series resonance voltage withstand test method is used in the AC voltage withstand test of the newly-built GIS while the original part is charged,because the test frequency is in the range of 30～100 Hz and the phases are not fixed,there must exists a moment at which the testing voltage and the running voltage overlaps to make the break voltage get maximum,resulting the isolating switch breakdown and GIS equipment in danger.To solve the problem,this study analyzed the isolating switch break voltage during test to find a way to reduce the break voltage,and hence improved the series resonance voltage withstand test method.Subsequently,an AC voltage withstand test method based on same-frequency same-phase principle was proposed,and the corresponding voltage withstand test device was developed.Field test verified the effectiveness and reliability of the proposed method and device.The proposed method realizes the AC voltage withstand test of newly-built GIS possible with the original part being charged,and enhances the reliability of power supply.关键词
GIS/同频同相/交流耐压试验Key words
GIS/same-frequency same-phase/AC voltage withstand test引用本文复制引用
王谦,龙英凯,吴高林,肖前波..基于同频同相原理的GIS设备现场交流耐压试验方法研究及应用[J].高压电器,2017,53(9):215-220,6.
