In case of lightning or operation process in the power system

its high-frequency transient overvoltage can be transferred from high voltage system to low voltage system by the electrostatic induction and electromagnetic coupling mode

which will cause serious influence on the measurement and protection device of secondary system

the secondary equipment itself and operation. In this paper

the transfer feature of high frequency overvoltage in CVT is discussed and analyzed by way of comparison of test and simulation analysis of transient overvoltage response characteristic of capacitor voltage transformer（ CVT）

and the problem encountered during response test and simulation is summarized

which provides reference for such works as overvoltage online monitoring.