绝缘材料
絕緣材料
절연재료
INSULATING MATERIALS
2015年
8期
46-50
,共5页
王晓剑%王娟%石颉%吴成年%施海宁%遆文新
王曉劍%王娟%石頡%吳成年%施海寧%遆文新
왕효검%왕연%석힐%오성년%시해저%제문신
变压器油%水分饱和溶解度%相对湿度%酸值%芳香烃含量%温度
變壓器油%水分飽和溶解度%相對濕度%痠值%芳香烴含量%溫度
변압기유%수분포화용해도%상대습도%산치%방향경함량%온도
transformer oil%water saturation solubility%relative humidity%acid value%aromatic content%temperature
对4组油纸绝缘试样在150℃下进行不同时间的加速热老化,研究油纸老化产物有机酸和芳香烃对油中水分饱和溶解度的影响规律.结果表明:油中水分饱和溶解度随着油中酸值和芳香烃含量的增加而增加,其中酸对油中水分饱和溶解度的影响较大,芳香烃的影响较小.根据试验结果,引入与油中芳香烃含量和酸值相关的平移因子m和n,利用Arrhenius公式建立了油中水分饱和溶解度与温度、油中酸值和芳香烃含量的数学公式,并验证了该公式的有效性.
對4組油紙絕緣試樣在150℃下進行不同時間的加速熱老化,研究油紙老化產物有機痠和芳香烴對油中水分飽和溶解度的影響規律.結果錶明:油中水分飽和溶解度隨著油中痠值和芳香烴含量的增加而增加,其中痠對油中水分飽和溶解度的影響較大,芳香烴的影響較小.根據試驗結果,引入與油中芳香烴含量和痠值相關的平移因子m和n,利用Arrhenius公式建立瞭油中水分飽和溶解度與溫度、油中痠值和芳香烴含量的數學公式,併驗證瞭該公式的有效性.
대4조유지절연시양재150℃하진행불동시간적가속열노화,연구유지노화산물유궤산화방향경대유중수분포화용해도적영향규률.결과표명:유중수분포화용해도수착유중산치화방향경함량적증가이증가,기중산대유중수분포화용해도적영향교대,방향경적영향교소.근거시험결과,인입여유중방향경함량화산치상관적평이인자m화n,이용Arrhenius공식건립료유중수분포화용해도여온도、유중산치화방향경함량적수학공식,병험증료해공식적유효성.
Four oil-paper insulation samples were ageing for different time at 150 ℃. Using acid value and aromatic content in oil as characterization, the influence of ageing products of oil-paper insulation on the water saturation solubility in oil was studied. The results show that the water saturation solubility increases with the increase of acid value and aromatic content in oil. Acid has greater impact on the water saturation solubility in oil than aromatic hydrocarbons. According to the experimental results, the shifting factor m and n, which related to aromatic content and acid value in oil respectively, were introduced, and the mathematical formula was established between water saturation solubility and temperature, acid value in oil, aromatic content based on Arrhenius equation. The effectiveness of the formula was verified.
