拉西瓦水电站施工配电变压器烧毁的原因分析

Reason Analysis of Engineering Distributing Transformer Burnout in Laxiwa Hydropower Station

文章针对拉西瓦水电站配电变压器烧毁的原因和施工区的用电现状,重点提出了过电压、过负荷、人为损坏烧毁配电变压器的主要原因,并根据烧毁变压器的特征进行了分析。提出了配电变压器在安装时应使用的专用工具,选用可靠的配件,安装时应接触良好,变压器投入使用后应加强检查维护工作,定期检查三相电流是否平衡,是否过载,清理变压器套管表面污垢,按技术规范进行检测等措施,及早发现问题,消除隐患。

Aiming at the reason of distributing transformer burnout and power consumption state of Laxiwa hydropower station, the paper stresses transformer burnout reason of over voltage, overloaded and artificially damaged problems, and makes an analysis according to the character of burnout transformer. Thus the paper proposes the special tools when installs the-transformer, and chooses reliable fittings, favorable connections, and after-putting into operation, check and maintenance should be strengthened, three- phase current balance should be regularly examined, inspection should be carried out according to the technical specifications .