摘要
通过对几起750 kV输电线路架空绝缘地线并联放电间隙持续放电,以及引起的地线绝缘子脱串事故成因分析,认为并联间隙距离不合格及感应电压的共同作用,加速了绝缘子的老化,最终失效并导致绝缘脱串。针对出现问题的原因,从设计和运行角度提出了相应的对策。
Through analyzing several duration cases in the insulated lightning wire parallel spark gap, and resulted wire insulator drop accidents in the 750 kV transmission lines, it is considered that the interaction of unqualified distance in parallel gap and induction voltage has accelerated the ageing of insulator, which resulted in the insulator out of action and drop. In the light of exited problems, the corresponding countermeasures are put forward from the angle of design and operation.
出处
《陕西电力》
2013年第5期84-86,共3页
Shanxi Electric Power
