浅谈220kV充油变压器绝缘电阻低之现场处理

变压器是电力系统中重要的电气一次设备,其各项试验指标是否合格直接影响着供电的安全性和可靠性。但是在新建项目变压器的安装过程中,经常会出现因天气原因或其他不可控因素造成绝缘电阻降低的现象,大型充油变压器由于运输重量的限制,因此在出现绝缘问题后一般选择在现场进行处理。

Analysis of the Treatment of Low Insulation Resistance of 220kV Oil-filled Transformer at Site

Transformer is the very important electrical primary equipment, and whether the test value is within the scope of requirement will directly affect the security and reliability of power supply. However, on the process of transformer installation on new project, there are many insulation problems happened due to weather or other uncontrollable factors, and because of delivery weight limit of large oil-filled type transformer, generally we will treat the insulation problems at site.