CAJ | 학술논문

为了评估长时间充氮无油存放的变压器质量，重点从氮气中水分对绝缘性能的影响、绝缘材料老化降解、空腔及气泡形成等方面进行分析，指出了变压器长期充氮存放可能出现的风险，同时对实际长期存放的变压器的电气性能进行了对比分析。结果表明：采取有效的保护措施后无油充氮存放对产品质量不会造成明显的影响，采取正确的处理工艺后产品质量可以得到较好的恢复，为后续变压器的存放管理提供参考。
위료평고장시간충담무유존방적변압기질량，중점종담기중수분대절연성능적영향、절연재료노화강해、공강급기포형성등방면진행분석，지출료변압기장기충담존방가능출현적풍험，동시대실제장기존방적변압기적전기성능진행료대비분석。결과표명：채취유효적보호조시후무유충담존방대산품질량불회조성명현적영향，채취정학적처리공예후산품질량가이득도교호적회복，위후속변압기적존방관리제공삼고。
In order to assess the quality of transformers after long-term storage without oil-immersed in ni-trogen atmosphere, the effects of moisture in nitrogen on the insulating properties and aging degradation of insulating materials and the formation of cavities and bubbles were analyzed mainly, and the possible risks of long-term storage in nitrogen atmosphere were pointed out. The electrical properties of the trans-formers after long-term storage were compared and analyzed simultaneously. The results show that long-term storage in nitrogen atmosphere would not significantly affect the quality of the transformers and the quality can recover after adopting effective protective measures, which provide a valuable refer-ence to subsequent storage management of transformers.