摘要
对大型地网接地电阻的测量 ,国内外普遍采用 5D 0 .6 18(D为地网最大对角线长度 )法。但这种方法只适用于均匀土壤接地电阻的测量。在双层土壤中 ,仍采用 5D 0 .6 18法会存在较大的误差 ,而此时的补偿点也将偏离 0 .6 18。
For the measurement of a grounding resistance of a large grid,5D 0.618(D is maximum distance between two corners of the grid)method is widely used.But this method is only suitable for uniform soil.In two layer soil,there is great measurement error for 5D 0.618 method.At the same time,compensation point deviates 0.618.
出处
《东北电力学院学报》
2001年第4期61-63,共3页
Journal of Northeast China Institute of Electric Power Engineering
关键词
接地电阻
测量
补偿法
双层土壤
Grounding grid
Two layer
Compensation method
