摘要
依据三沪直流蔡家冲老城接地极场地条件和土壤物理特性,拟定电极的不同布置形状,通过引进电流不均匀系数的概念,论述电流不均匀系数与分析老城极址不同形状电极的电流分布、接地电阻、最大跨步电压等技术特性,对老城接地极极环形状及布置方案做出优化论证。
According to the field condition and soil physical characteristics of Laocheng ground electrode of Caijiachong station in San-Hu DC transmission project, several electrode arrangements were planned. This paper introduces the concept of current non-uniformity coefficient, and discusses the characteristics of this coefficient, and analyzes the current distribution, ground resistances, and maximum step voltages of different electrode shapes in Laocheng. Demonstration on electrode shape and arrangement optimizations has also been carried out.
出处
《电力建设》
2007年第6期20-23,共4页
Electric Power Construction
关键词
电流不均匀系数
跨步电压
电极形状
优化布置
current imbalance coefficient
step voltage
electrode shape
optimum arrangement
