500kV输电线路光纤保护联调探讨

光纤保护作为线路首选主保护已在220 kV及以上电压等级中得到了广泛的应用。与此同时,由于距离远,线路两侧联调时所出现的问题也越来越多,尤其会在验收或首检中因准备不足或调试思路繁冗而无法得到迅速解决,影响联调进度。通过四川电网的某500 kV线路光纤保护及通道调试为例详细介绍了光纤保护通道联调的方案、步骤和方法,对调试中可能出现的问题进行细致地探讨并提出了相应的解决措施,具有一定的通用性,以便为今后此类调试工作提供实用的参考。

Discussion on Joint Commissioning of Fiber Optical Protection in 500 kV Transmission Lin

Optical fiber protection,as the preferred main protection of transmission line,has been widely applied in 220 kV voltage level and above.At the same time,due to the long distance,there are more and more problems occurring during the joint commissioning in both sides of line.In particular,due to the lack of preparation or the tedious commissioning schemes,these problems can not be resolved quickly in the acceptance check or the first check,which often affects the commissioning progress.Taking the optical fiber protection and channel commissioning of a 500 kV line in Sichuan power grid for example,the program,procedures and methods for joint commissioning of optical fiber protection channel are described in detail,the problems which may occur in the commissioning are discussed and the corresponding measures are put forward,which has some generality to provide such a useful reference for the future commissioning.