CAJ | 학술논문

本文针对某220kV变压器在试验过程中局放量超标的问题进行分析。通过现场多次试验和吊罩处理，在变压器高压侧压板上方发现金属异物，该异物造成金属悬浮放电，处理后放电现象消失。该事例说明，变压器局部放电实验对发现设备内部的绝缘缺陷有重大意义。
본문침대모220kV변압기재시험과정중국방량초표적문제진행분석。통과현장다차시험화조조처리，재변압기고압측압판상방발현금속이물，해이물조성금속현부방전，처리후방전현상소실。해사례설명，변압기국부방전실험대발현설비내부적절연결함유중대의의。
[Absract]This paper analyses the problems of a 220kv transformer’s partial discharge quantity exceeds the standard.Through many tests and hanging over the transformer,one 金属异物metal foreign body was found on the transform’s high voltage winding’s pressplate.The metal suspended discharge due to the metal foreign body was disappeared after processing.As the examples show,the transformer’s partial discharge test was useful to the discovery of internal insulation defect.