Among the complex causes of transformer burn out, the overvoltage, overcurrent and manual damage are emphasized and their characteristics are analyzed.

• 针对配电变压器烧毁原因的复杂性,重点提出了过电压、过负荷、人为损坏原因烧毁配电变压器问题,并根据烧毁变压器的特征进行了分析。