摘要
笔者分析了灰密的概率密度分布,并推导出盐密与灰密的联合概率密度函数。在不考虑灰密和考虑灰密两种情况下,利用概率统计方法,推导出在恒定电压下,绝缘子的污闪概率计算方法,为评估线路可靠性、调度部门决策、绝缘子的维护以及新线路绝缘子的选型提供依据。
This paper analyzes the probability density distribution of the non-soluble deposit density, and hence deduces a combined probability density distribution function. An expression of pollution flashover probability under constant voltage is also deduced by means of statistical method with or without considering salt NSDD. This study can be applied to powe~ line reliability evaluation, insulators maintenance, and insulators selection for new lines.
出处
《高压电器》
CAS
CSCD
北大核心
2009年第1期104-106,共3页
High Voltage Apparatus
关键词
概率统计
概率密度
污闪风险性
灰密
盐密
probability statistics
probability density
pollution flashover risk non-soluble deposit density（NSDD）
ESDD
