Methods of small electric flow grounded breakdown line choose based on fuzzy breakdown measurement

摘要

This article focuses on how to choose breakdown line with temporary information of electric net single grounded as basis. On the basis of an analysis of the shortcomings of symbol output, the concept of fuzzy breakdown measurement is introduced and information is filtered of noise, fuzzy breakdown measurement of each line is computed. Then line-choose is conducted according to the size of fuzzy breakdown measurement. Several typical test examples and real present breakdown example are also given to confirm the property of the line-choose accordance in this article.