800kV/1600A油纸电容式变压器套管的研制

介绍了青海官亭—甘肃兰州东高海拔750kV系统主变压器高压引线端用油纸电容式变压器套管的技术参数、主要尺寸、结构特点、解决的关键问题及型式试验项目。套管的额定电压为800kV,额定电流为1600A,长度为11m的导电管采用对接高频低温焊接,上瓷套的最大伞径745mm,高度7200mm,由四节湿法成形瓷套组成,采用整体加热与局部加热粘接相结合方法将瓷套粘接成一体。实验结果表明,产品通过了全部型式试验,达到了相关标准的要求。

Development of 800 kV/1 600 A Oil-imperegnated Paper Condenser Bushing

The paper described the specifications,main dimensions,structure features,key problems solved as well as type test items of OIP condenser bushing used for 750 kV power transformer at Qinghai Guanting-Gansu Langzhoudong high-altitute transmission line,with parameters of rated voltage 800 kV,rated current 1 600 A,11 m length of conducting tube welded with high-frequency low-temperature technology,max.745 mm shed diameter for upper porcelain shell of 7 200 mm height,jointed from four porcelain part using combinative overall heating and local heating method.The test result showes that the products passed all type test according to relative standards.