变压器铁芯多点接地故障分析及处理过程

Analysis and Treatment Process of Multi-Point Grounding Fault of Transformer Core

变压器铁芯多点接地,在变压器故障中是较为常见的,它会引起局部过热,使变压器油受热分解成为气体,一部分为可燃性气体,还可能使接地熔断或烧坏铁芯,使铁芯产生悬浮电位产生放电现象。由于多点接地属于常见故障且故障点的位置不尽相同,对查找和处理都有一定的难度。

Multi-point grounding of transformer core is more common in transformer fault. It may cause overheating in local area, which causes the transformer oil to be heated and decomposed into gas, and part of it is flammable gas, which may also cause the grounding fuse or burn the iron core, causing the core to generate the suspension potential, thus causing the discharge phenomenon. Because multi-point grounding is a common fault, and the location of the fault point is not the same, it makes it difficult to find and deal with it.