变压器出现油位异常的原因有很多，处理方法也各异，但是变压器出现油位异常现象大致是相似的，而且造成的影响也是比较大的，轻则变压器外部进气（空气、潮气），使变压器油加速老化，重则可能引起变压器内部故障或内部故障前兆。要想找出变压器油位异常原因，先了解一下油浸式变压器的部分结构。(There are many reasons for transformer abnormal oil level, processing method is also different, but the abnormal phenomenon of transformer oil are generally similar, but the impact is relatively large, ranging from outside the transformer intake (air, moisture), so that the transformer oil aging, heavy may cause the internal fault of transformer internal fault or precursor. To find out the cause of the abnormal oil level of the transformer, first understand the partial structure of the oil immersed transformer.)