摘要
接地电阻值是大型接地系统的一项重要技术指标,是衡量大地网有效性和安全性的重要参数之一。准确测量大地网接地电阻值,对大型接地网安全性评价具有非常重要的意义。论文介绍了煤发电厂大型接地网的重要性与设计方法,重点讨论了接地电阻测试方法、步骤。以宿州市某煤发电厂为例进行接地电阻的测试,分析了影响大地网接地电阻测试的因素,给出了测试过程中的注意事项,其测试分析方法对煤发电厂大地网接地电阻检测工作具有一定的技术指导作用。
The grounding resistance is an important technical index of large-scale grounding system and one of the important parameters to measure the effectiveness and safety of geodetic network.It is very important for the safety evaluation of large-scale grounding network to measure the grounding resistance accurately.The importance and design method of large-scale grounding grid in coal power plant were introduced,and the test method and steps of grounding resistance were discussed.Taking a coal power plant in Suzhou as an example,the factors that affect the test of the grounding resistance of geodetic network were analyzed,and the precautions in the test process were given.The test and analysis method had a certain technical guidance for the detection of the grounding resistance of the geodetic network of coal power plant.
作者
史锡军
杨清
欧林忠
SHI Xi-jun(Suzhou Meteorological Bureau,Suzhou,Anhui 234000)
出处
《农业灾害研究》
2020年第1期80-81,87,共3页
Journal of Agricultural Catastrophology
关键词
煤发电厂
大地网
接地电阻
Coal power plant
Geodetic network
Grounding resistance
