摘要
为研究乌桕籽油作为变压器用天然酯绝缘油的可行性,将乌桕籽油经过脱胶、脱酸、脱色和脱水等精炼处理后得到乌桕籽绝缘油,将其与矿物绝缘油进行理化性能和电气性能对比,并在130℃条件下进行加速热老化试验,研究其热老化特性。结果表明:乌桕籽绝缘油主要的脂肪酸成分为多不饱和脂肪酸,其理化性能和电气性能符合相关标准要求,其运动黏度和介质损耗因数大于矿物绝缘油,但燃点远高于矿物绝缘油;在130℃下经过250、500、750、1 000 h热老化后,乌桕籽绝缘油的颜色变化程度小于矿物绝缘油,且拥有高于矿物绝缘油的击穿电压,但是介质损耗因数的增幅较大。
In order to study the feasibility of using sapium sebiferum seed oil as the natural ester insulating oil for transformers,sapium sebiferum seed oil was subjected to refining treatments including degumming,deacidification,decolorization,and dehydration,to prepare a sapium sebiferum seed insulating oil.Its physicochemical and electrical properties were compared with those of mineral insulating oil,and accelerated thermal ageing test was carried out on it under 130℃to study its thermal ageing characteristic.The results show that the main fatty acid component of sapium sebiferum seed insulating oil is polyunsaturated fatty acid,its physicochemical and electrical properties can meet the requirements of relevant standards,and its kinematic viscosity and dielectric loss factor are greater than those of mineral insulating oil,but the ignition point is much higher than that of mineral insulating oil.After thermal ageing at 130℃for 250 h,500 h,750 h,and 1000 h,the sapium sebiferum seed insulating oil has less color change and higher breakdown voltage than mineral insulating oil,but its increase amplitude of dielectric loss factor is great.
作者
范帆
蔡胜伟
龚宇佳
应斯
杨国泰
张明
黄小华
FAN Fan;CAI Shengwei;GONG Yujia;YING Si;YANG Guotai;ZHANG Ming;HUANG Xiaohua(China Electric Power Research Institute,Wuhan 430074,China)
出处
《绝缘材料》
CAS
北大核心
2024年第5期57-60,共4页
Insulating Materials
基金
中国电力科学研究院有限公司青年基金项目(SZ84-22-004)。
关键词
乌桕籽绝缘油
理化性能
电气性能
热老化
sapium sebiferum seed insulating oil
physicochemical properties
electrical properties
thermal ageing
作者简介
范帆(1992-),男(汉族),河南漯河人,工程师,主要从事变压器试验及绝缘材料技术的研究;通信作者:蔡胜伟(1982-),男(汉族),湖北广水人,正高级工程师,主要从事环保绝缘材料及变压器技术的研究。
