For achieving the quantitative analysis of harmonic transfer model of capacitor voltage transformer（CVT）

a kind of identification method of equivalent circuit parameters of CVT is proposed in this paper.By measuring the frequency response of CVT with the method

the non-linear equation of equivalent circuit parameters of the CVT is set up and solution of the non-linear equation is achieved by using the Gauss-Newton method. The equivalent circuit of the VCT is set up in accordance with actual parameters of the CVT and by the use of Matlab-Simulink platform

and the the experimental scheme for verifying performance of the method is designed. The simulation results show that the method can overcome the influence of measurement error

has high feasibility and application value.