电力系统及其自动化学报2013，Vol.25Issue(3)：40-42,3.
移频测试高压输电线路离线故障检测
Off-line Fault Detection on High Voltage Transmission Line Based on Frequency Shift Test
摘要
Abstract
For traditional transmission fault detection,on-line recognition and location are applied in the second power system relay protection device initially.However,these applications are far from the off-line fault detection in case of transmission line building or rebuilding.In this paper,a kind of off-line fault detection on high voltage transmission line based on frequency shift test scheme was proposed.The parameters of transmission line are tested through the frequency power with 40 Hz and 60 Hz,which can effectively avoid the interference of power frequency.With one-phase grounded short circuit of new built lines as an example,the methods using positive and zero sequence to solve the equation are introduced in detection solution.The simulation results verify that the fault point of long line is searched fast and accurately.关键词
高压输电线/移频测试/离线检测/故障测距/故障点Key words
high voltage transmission line / frequency shift test / off-line detection / fault location/ fault point分类
信息技术与安全科学引用本文复制引用
郑伟,拜润卿,智勇,杨勇,石立光,万健如..移频测试高压输电线路离线故障检测[J].电力系统及其自动化学报,2013,25(3):40-42,3.基金项目
国家自然科学基金资助项目(60874077) （60874077）
国家质检总局公益性行业科研专项资助项目(200910097) （200910097）
