摘要
将非正弦周期检测信号分为1/3周期内的正弦信号,在三个时段内分别建立系统的等效电路模型与数学模型,揭示出漏电流和接地电流随漏电阻变化的关系,并给出了实验数据予以验证。
The non-sinusoidal cycle detection signal into sinusoidal signal within 1/3 of the cycle is divided. In this three periods of time, it builds the equivalent circuit model and math model of system separately. The change connection between leakage current, grounding current and leakage resistance are presented and validated by experiment data.
出处
《电气应用》
北大核心
2007年第2期43-45,49,共4页
Electrotechnical Application
关键词
煤矿
漏电保护
有效值
选择性
coal mine ereepage protection virtual value selectivity
