摘要
通过深入分析陕西电网1起330kV线路故障后1套高频保护装置两侧动作情况,发现线路1侧高频保护存在问题,对影响高频保护的各环节进行现场检查分析后发现了异常原因,对照反事故措施要求及时完成了现场改进工作,建议以后加强高频保护的运行维护,为今后类似问题的解决提供参考和借鉴。
The abnormal operation of HF protection relays resulted from 330kV transmission line fault in Shaanxi power grid is analyzed.By investigating the operational reports of HF relay devices on both sides of the line end,the relay initial maloperation cause is found,further and thorough site examination and countermeasures are carried out.Finally the enhancement of operation and maintenance of HF protection relays is suggested to alleviate the abnormality.It is helpful for the reference of future similar cases.
出处
《陕西电力》
2011年第5期60-62,共3页
Shanxi Electric Power
关键词
输电线路
高频保护
动作分析
反事故措施
transmission lines
HF protection relays
operation analysis
countermeasures
