Soil Heat Characteristic Test of
Grounding System in Dc Transmission Line
QI Jian-guo, QI Di, YUAN Li-jiang, ZHANG Guo-chun, LIU Chang-ji
(Northeast Electric Power Design Institute, Changchun, 130033, China)Abstract: Searching for a credible, effective and low-cost way to test the soil heat characteristic about the project of DC transmission lines. A new method – Heat Source Double-Tip Method –has be applying recently, its principle is described briefl y. Setting up the system about soil heat characteristic test work in the double-tip sensor made in US.
Applying the system to the practice of location selection.
Key words: grounding system; linear heat source; soil heat characteristic.