| Title |
A Study on the Aging Diagnosis of Transformer oil by spectrometric and Electroanalytical Methods |
| Authors |
김경렬 ; 곽희로 ; 윤영자 ; 남궁미옥 ; 이동준 |
| Abstract |
The furfural, generated by decomposition of insulating paper, the amount of metal in insulating oil, and tanδ(electrical properties of insulating oil)have been studied for the insulating oil in pole transformer with accelarated thermal aging test. It has been found that tan δ is affected by adding components of the transformer. The examination of amount of metal, which exhibits catalytic behavior to oxidation of insulating oil, suggested that the amounts of copper increase with degradation time. A comparison between tanδ and copper amount suggested that the amounts of copper for attention are above 0.2[ppm]. Finally, the examination of amount of furfural revealed that the amounts of furfural increase with degradation time. As a consequence, these results could be used for diagnosis of pole transformer. |