自然直流小电流选线系统中的漏电流的深入分析  

The Embedded Analysis of Grounding Current in Nature DC Small Current Choice Line System

作　　者：晁先发[1] 袁振海[1] 

机构地区：[1]南京工业大学自动化学院,210009

出　　处：《电气应用》2007年第2期43-45,49,共4页Electrotechnical Application

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.

关 键 词：煤矿 漏电保护 有效值 选择性 

分 类 号：TM711[电气工程—电力系统及自动化] TM771