In order to solve the problem of the frequency response of the electromagnetic voltage transformer and the capacitive voltage transformer（CVT）under harmonic

a broadband capacitive voltage divider has been developed. The two common forms of compressed gas standard capacitor are designed into one close shell. The design of the main insulation and capacity are completed using electromagnetic field simulation software

and theoretical calculation of the temperature coefficient of the voltage ratio is finished. Two-stage buffer circuit is designed to improve the load capability of the voltage divider. The test results indicate that the insulation of the voltage divider can meet the requirement of insulation design

and the accuracy of divider reaches up to the requirement of the 0.5 class of the voltage transformer under 2 500 Hz. The divider could be used for the harmonic measurement.