大型空冷高压发电机主绝缘的导热系数与粘合剂种类、胶含量的关系  

The Relationship between Thermal Conductivity of Ground Insulation and Adhesive Type and Its Content in Large Air-Cooling High-Voltage Generators

作　　者：田华杰[1] 饶保林[1] 祝晚华 

机构地区：[1]桂林理工大学"有色金属及材料加工新技术"教育部重点实验室,广西桂林541004 [2]桂林电器科学研究院,广西桂林541004

出　　处：《绝缘材料》2011年第2期52-55,共4页Insulating Materials

基　　金：国家自然科学基金项目(51067003);广西科学基金应用基础研究专项(桂科基0832015);广西研究生教育创新计划资助项目(2010105960703M09);科技部科技人员服务企业行动项目(2009GJE10024)

摘　　要：通过研究大型空冷高压发电机多胶模压主绝缘的导热系数与胶含量之间的关系,并对5440-1桐马环氧玻璃粉云母带和高强度环氧玻璃粉云母带的热传导性能进行比较。结果表明：随胶含量减小主绝缘的导热系数增大;主绝缘的胶含量基本相同时,用高强度带比桐马带压制的主绝缘的导热系数高13%-18%。The relationship between thermal conductivity of resin-rich ground insulation and adhesive content in large air-cooling high-voltage generators was studied.And the heat conduction performance of 5440-1 tung-oil-maleicimide-epoxy fiberglass mica tape and high strength epoxy fiberglass mica tape was compared. The results show that when the adhesive content decreases,the thermal conductivity of ground insulation increases.When the adhesive content is basically the same,the thermal conductivity of ground insulation molded with high strength mica tape is 13%～18% higher than that molded with tung-oil-maleicimide mica tape.

关 键 词：大型空冷高压发电机 主绝缘 导热系数 胶含量 

分 类 号：TM215.43[一般工业技术—材料科学与工程] TM301.41[电气工程—电工理论与新技术]