Analysis and Treatment of Transformer Faults Caused by Corrosive Sulfur

摘要：

Based on electrical and chemical analysis in oils of some fault transformers in Shenzhen, it indicates that the corrosive sulfur contained in insulating oils may cause faults. Corrosive sulfur would react to copper wire and engender Cu2S during the operation of transformer. Because of the electric characteristic of Cu2S, this substance will penetrate and pollute insulating paper of the wire, and then weaken the insulation intensity. At last it would wear out coil insulation. Experiments indicate that adding passivator to insulating oil is an effective method to solve the problem. Passivator can form a protection layer on the surface of copper, which can avoid copper corrupting and can stop copper deposition in the presence of potentially corrosive sulfur compounds as well.

关键词： transformer corrosive sulfur analysis treatment

作者: Qian Yi-hua Wang Yu Hu Hong-hong Yao Wei-jian Li Zhi

作者单位: Electric Power Research Institute of Guangdong Power Grid Corporation,Guangzhou 510600,China Shenzhen Power Supply Bureau,Shenzhen 518020,China

会议类型: 国际会议

会议名称: 2008 China International Conference on Electricity Distribution (CICED 2008)(2008中国国际供电会议)

会议地点: 广州

会议语种:英文

页码: 1-4

在线出版日期: 2008-12-10（万方平台首次上网日期，不代表论文的发表时间）