低温环境下220千伏变压器轻瓦斯动作故障分析与改进措施

舟山群岛地处东海海域,岛礁众多;其电网构架较为特殊,各海岛通过海缆或海上架空线建立电力联络。随着舟山经济的快速发展,确保海岛环境下的电网安全稳定尤其重要。因此作为电网核心节点的220千伏变电站,凸显愈发关键的作用。文章针对低温环境下,220千伏渔都变电站2号主变轻瓦斯动作进行故障原因分析,并提出相应改进措施。

Zhoushan Islands which have many reefs are located in the East China Sea.These islands are connected with each other using submarine cable or overhead line,which make the grid architecture special.With the rapid economic development of Zhoushan,making sure the grid is safe became more important.As the core node of grid,220kV substation play a key role.This paper is aimed at cause analysis of light gas operation faults in 220kV transformer on low temperature,at the same time put forward corresponding improvement measures.