Research on the Method of Eliminating the Mutual-inductance in Grounding Impedance Measurements
Duanmu Linna · Gaoya dianqi · 2015
In order to eliminate the mutual-inductance between the current wire and voltage wire in the measurement of grounding impedance,this article presents a calculation method to eliminate the affect of the mutual-inductance.The Daxuecheng 110 k V substation is measured,and the mutual-inductance between the voltage line and the current line is compared with the testing results. The resistive and the inductive components of the Daxuecheng 110 k V substation grounding system are analyzed.