Abstract

In order to know the transformer oil influence by the X-ray and convenient for determined the application range of the X-ray digital radiography (DR) system, in this paper, it is proposed the study that utilizes the highest energy of the X-ray machine to irradiate the transformer oil in charged and no electrical charges. The dissolved gas analysis (DGA) is used to observe the X-ray influence for the transformer oil in charged and no electrical charges. And the pulse current partial discharge equipment is imposed to detect the initial voltage of the transformer oil under X-ray irradiation in charged. The experimental results demonstrate that the H2 content of DGA and the initial voltage of the transformer oil are increased and fall by the X-ray irradiation, respectively. However, the extent of the adding H2 of the DGA and the reduced oil initial voltage are determined by the oil quality, oil state and the X-ray irradiation time.

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