一起110kV变压器瓦斯动作原因分析
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摘要
变压器是变电站的核心设备,储油柜是变压器的基本部件,但由储油柜造成主变跳闸的事故较少。通过对一起由外油式波纹管储油柜滚轮卡涩造成110 kV主变瓦斯动作的检查和分析讨论,找出储油柜内焊缝的加工质量是引发此事故的根本原因,并提出同类型主变在建设、运行和维修阶段需注意的事项及相关改进建议。
The transformer is the core equipment of the substation,while the oil conservator is its basic part,which is less likely to cause the main transformer trip accidents.By analyzing the gas protection actuation incident of main transformer caused by the jam fault of roller of the outer oil type corrugated oil tank,this article finds out that poor fabrication quality of oil conservator welds is the root cause of the accident,and puts forward the matters needing attentions during the construction,operation and maintenance of similar transformers and the related modification suggestions.
The transformer is the core equipment of the substation,while the oil conservator is its basic part,which is less likely to cause the main transformer trip accidents.By analyzing the gas protection actuation incident of main transformer caused by the jam fault of roller of the outer oil type corrugated oil tank,this article finds out that poor fabrication quality of oil conservator welds is the root cause of the accident,and puts forward the matters needing attentions during the construction,operation and maintenance of similar transformers and the related modification suggestions.
引文
1刘志平.变压器储油柜的发展与应用[J].变压器,2008,45(5):59-61.
2齐大勇,沈倩,刘明,等.变压器储油柜及其常见问题浅析[J].山东电力技术,2008(6):61-64.
3王泽峰.一种新型主变油枕在电力系统中的应用[J].电工技术,2004(12):13-14.
4宋人杰,曹磊.大型变压器储油柜结构失稳分析与探讨[J].变压器,2004,51(5):62-64.
5郭波.两种新型波纹管式变压器储油柜应用比较分析[J].广西电力,2007(5):75-77.
2齐大勇,沈倩,刘明,等.变压器储油柜及其常见问题浅析[J].山东电力技术,2008(6):61-64.
3王泽峰.一种新型主变油枕在电力系统中的应用[J].电工技术,2004(12):13-14.
4宋人杰,曹磊.大型变压器储油柜结构失稳分析与探讨[J].变压器,2004,51(5):62-64.
5郭波.两种新型波纹管式变压器储油柜应用比较分析[J].广西电力,2007(5):75-77.