In this paper, in view of big error between the capacitive current of the measured resonance grounding system and the actual one when the maximum displacement voltage method is applied, the shortcoming of the method is found and new improved method is proposed. The issue on the practical application of the method is described through the analysis of the original resonance measurement method. The expression form on the measurement of capacitive current by the maximum displacement voltage method is improved through actual analysis and the expression form is integrated into the capacitive current...
