AH series AC high voltage testing system is designed for testing the insulation level of motor, transformer, power cable and high voltage switcher. It is used in electric manufactures, power companies, scientific research institutes and universities. The equipment has the advantages of low loss, small distortion rate of the output voltage wave and light weight. The technical properties correspond to the requirements in the relevant recommendations: IEC60060-1-89, IEC60060-2-94, GB/T16927.1-2-1997 and GB/T3048.8-94.