Analysis of a 66kV Transformer Insulation Breakdown Accident

摘要：

　　The total reflection of the wave will occur twice and the lightning over-voltage will be increased by 2 times when the lightning wave along the line reached in the disconnect switch are derived through the analysis of the accident 66kV transformer insulation breakdown.This will lead to the switch breakdown and discharge to be grounded.In this case the breaker is between the arrester and the transformer and the transformer will withstand 2 times arrester residual voltage result in the transformer breakdown.Finally,effective preventive measures combined with the practical experience are proposed.

关键词： station transformer wave reflection line arrester standby switch

作者: Zhang Hua Wang Qinghao Li Ping Li Zhixuan Zhang Ning Liu Chuanbo Cui Xiaoyu

作者单位: Fushun Power Supply Company, Liaoning Electric Power Company Limited, China

会议类型: 国际会议

会议名称: 2012 International Conference on Engineering Materials,Geotechnical Engineering and Environmental Engineering(EMGEEE2012)(2012工程材料、岩石工程和环境工程国际会议)

会议地点: 石家庄

会议语种:英文

页码: 391-394

在线出版日期: 2012-10-26（万方平台首次上网日期，不代表论文的发表时间）