某风电场站内设备频繁烧毁事件分析

Analysis of Frequent Burn-out Incidents of Equipment in a Wind Farm Station

2019年以来,某风电场多次发生35kV汇集线路单相接地故障后,升压站内400V侧电气设备损坏事件,此类事件对风电场日常运行带来极大的困扰。本文根据接地变工作原理,结合故障时刻的录波文件等对事件进行了分析,得出了400V侧电气设备损坏的直接原因及根本原因,并提出了解决措施,最终将该问题彻底解决。

Since 2019,after a single-phase grounding fault of a 35kV convergence line occurred repeatedly in a wind farm,damage to electrical equipment on the 400V side of the transformer substation,such incidents have caused great distress to the daily operation of wind farms.This article works according to the grounding transformer,the events are analyzed in conjunction with the recording fi le at the time of failure,the direct cause and root cause of the damage to the electrical equipment on the 400V side were obtained,and proposed a solution.Finally,the problem was solved completely.