GIS内断路器ON/OFF時のアークにより発生するサージの電子回路への移行特性解析

概要

論文の詳細を見る
In gas insulated switchgear (GIS), the arc discharge due to a disconnector on/off generates fast transient surge, which can be the cause of malfunction and damage of electronic devices such as microprocessors and AD converters if the fast transient surge exceeds a specified level. In this paper, it is shown that the comparison and evaluation are realized between the measured results and the calculated ones of fast transient surges generated due to a disconnector on/off in 300kV GIS by adopting the evaluation index. The calculation is carried out by applying the authors proposed equivalent circuits using distributed constant lines in consideration of the structure of GIS and a newly developed divided-type voltage sensor. And, it is found by using the evaluation index that the measured results and the calculated ones are good agreement each other. Further, the cause of occurring the peak of the evaluation index is clarified by analyzing the equivalent circuit. And, the signal conditioning using low-pass filter for electronic circuits connecting the divided-type voltage sensor is designed.
社団法人電気学会の論文
2003-07-01