500kV架空线路相间间隔棒失效原因分析  

Failure Analysis on Interphase Spacer of 500 kV Overhead Line

作　　者：孙澎[1] 

机构地区：[1]国网河北省电力公司电力科学研究院,河北石家庄050021

出　　处：《铸造技术》2016年第3期470-471,共2页Foundry Technology

摘　　要：通过宏观分析、金属化学成分分析、金相组织检验、扫描电镜断口形貌分析和间隔棒连接结构分析,对某500 k V架空输电线路相间间隔棒失效原因进行了综合分析。结果表明,ZL102间隔棒存在铸造缺陷以及间隔棒结构设计不合理是导致该间隔棒失效的根本原因。A comprehensive analysis which was based on macro-structure inspection, chemical composition analysis,matellurgical structure, fracture morphology observation and connetions structural of interphase spacer was made on failure of ZL102 interphase spacer of 500 kV compact transmission line. The results show that casting defects and unreasonable structure led interphase spacer to failure.

关 键 词：间隔棒 ZL102 铸造缺陷 

分 类 号：TM755[电气工程—电力系统及自动化] TG115[金属学及工艺—物理冶金]