摘要
基于局部电弧—剩余污层串联模型及相关结果,利用假设条件和相关参数间的关系,导出了污闪电压与等值盐密及其它多个参数间的理论关系式,该式表明污闪电压与等值盐密是幂函数关系,其中系数 K受多个参数影响,而指数P只与电弧常数n 有关。应用该式表达和解释了若干实验结果,给出了通过 P计算n 的方法。该理论式可用于污闪问题的分析研究。
On the basis of the model of local electric arc in series with residual dirt-layer, the theoretical relation between pollution flashover voltage (PFV) and equivalent salt deposit density (ESDD) as well as other several parameters is derived with the help of some hypothesis and related functions and the results show that the function relation between PFV and ESDD is a power function, in which the coefficient K is related to many parameters but the exponent P is only related to the electric arc constant n. Some experimental results are successfully explained by using the theoretical relation. In addition, the method for calculating electric arc constant n by way of exponent P is given. The function can be used for research and analysis on pollution flashover.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2005年第3期10-11,30,共3页
High Voltage Engineering
关键词
污闪电压
等值盐密
幂函数
pollution flashover voltage
equivalent salt deposit density (ESDD)
power function
