Partial discharge test full system for dry type transformer

A partial discharge test full system for a dry type transformer belongs to the technology of test for transformer products. A partial discharge power supply is an electric motor-electric generator unit with 50Hz frequency multiplication, and further a partial discharge power supply purification filter circuit is provided. Three isolation transformers and a low pass filter are connected in sequence, wherein a first isolation transformer has the same specification with a second isolation transformer. The partial discharge power supply purification filter circuit, a tested dry-type transformer and the test system are arranged in an experiment hall. A partial discharge measurement instrument is arranged in a test operation room beside the experiment hall. The input end of the partial discharge power supply purification filter circuit is connected with the partial discharge power supply in a partial discharge room through a cable, and the output end of the partial discharge power supply purification filter circuit