摘要
正在研制的75m长10.5kV 1.5kA三相交流高温超导电缆将于2004年底挂网试运行。本文分析75m高温超导电缆的电场分布特点,介绍了该电缆的总体绝缘设计与加工及试验情况。在由超导电缆本体、中间连接及终端模型组成的同实际电缆外体结构一致的电缆集成体模型上,完成了终端及电缆中间连接的绝缘预加工并进行了耐压试验;15kV工频电压下电缆本体绝缘局部放电试验;以及电缆本体及模型电缆集成体绝缘通过了35kV工频耐压试验。
A 3-phase 10.5kV,1.5kA HTS cable 75m long under development will be put into trial-operation at the end of 2004.This paper analyses the distribution of the electric field of the 75m long HTS cable and presents design,process and testing of the overall insulation system.Pre-fabrication of insulation system for connection and termination was completed on a cable model consisting of cable, connection and termination imitating the real cable system and the voltage test was made on the cable system. During the 15kV AC voltage test,the PD measurement of the cable is less than 1pC.The model cable and cable system passed the 35kV AC voltage test.
出处
《电线电缆》
2005年第2期19-21,24,共4页
Wire & Cable
基金
国家十五"863"计划资助项(2 0 0 2AA3 0 61 61 )
关键词
高温超导电缆
绝热套
电缆终端
绝缘
电场
耐压
局部放电
HTS cable
insulation sleeve
cable termination
insulation system
electric field
voltage withstand
PD
