摘要
电力变压器各类故障中过热故障比重很大且类型多样,油色谱能较有效判断出过热故障,电气试验和红外测温能较准确判定故障的原因和部位,提出了以油色谱为主结合有关电气试验、红外测温来分析过热故障性质、原因和部位的综合诊断方法。实践证明此法诊断中、小型变压器典型过热故障十分有效。
Overheat faults is in a large proportion in all transformer faults. The types of overheat faults are varied, and their accurate diagnosis is difficult Practice proves that DGA can determine whether there is an overheat fault It is also proved that the electrical experiments represented by DC resistance and the infrared temperature measurement can determine the cause and position of the faults. Based on these and on the mechanism of all kinds of overheat faults, this paper systematically proposes the general diagnosis method to analyze the property, position, reason of the faults and this method is based on DGA analysis coupled with relevant electrical experiments and infrared measurement. In this paper; the proposed method is applied to practical cases and the results show this method is realistic and effective for typical overheat fault diagnosis of small and medium size transformers.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2005年第4期9-11,共3页
High Voltage Engineering
基金
国家自然科学基金资助项目(50477010)
关键词
变压器
过热故障
诊断
transformer
overheating fault
diagnosis
