An analysis of the burning accident of the tower bottom cabinet of G58-850KW wind turbine group. Issue 1 (May 2020)

• Record Type: Journal Article
• Authors: Xiong, Guozhuan; Zhang, Yuechao; Yang, Peiwen; Zhu, Zhe; Hu, Peng
• Is Part Of: IOP conference series. Volume 508:Issue 1(2020)
• Publication Date: 2020-05
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/508/1/012054
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In March 2020, an accident happened in a wind farm in Jilin Province, which caused huge economic losses. Based on the investigation of the operation process at the scene of the accident, the burning condition of the equipment and the historical data of the relevant faults, it is found that the cause of this accident was the insulation aging between the low-voltage side turns of the transformer in the power converter cabinet. In the process of opening the main circuit of the equipment, the over-voltage phenomenon of the transformer occurs, which leads to the phenomenon of electric spark explosion. Through the accident analysis, a series of rectification measures are obtained, which will play a reference role for the subsequent maintenance and operation of wind turbines.