電力機器における部分放電検出法とその基礎特性

概要

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Abstract In recent years, investment of electric power apparatus or equipment is being pressed down by recent trend of deregulation of electric utilities and deregulation of the energy sector. However, in the highly-networked information society, the necessity for stable supply of high-quality electric power is still higher. In such a situation, the accident of electric power apparatus should be prevented for the stable supply of electric power. Therefore, the diagnostic techniques for electric power apparatus are very important. In some diagnostic techniques for electric power apparatus, especially we have paid our attention to the measurement of partial discharge (PD), which is a precursor of deterioration in the insulation of electric power apparatus. The purpose of this research is to clarify the characteristic of PD detection method for electric power apparatus. In this paper, the corona discharge in air or oil was investigated by two methods; the PD pulse charge detection method and the PD pulse propagation electromagnetic wave detection method. The measurements result is influenced from the frequency characteristics.
宮崎大学の論文