特高压换流变压器乙炔体积分数异常增长原因分析及防范措施
Cause Analysis of Abnormal Increase in Acetylene Volume Fraction in Ultra-high Voltage Converter Transformers and Preventive Measures
杜彦镔 1赵怡臣 1郝文斌 1杜文琦1
作者信息
- 1. 国网山东省电力公司超高压公司,山东 济南 250118
- 折叠
摘要
对某特高压换流站低端换流变压器乙炔体积分数异常增长现象进行分析.分析低端换流变压器的油色谱数据、铁芯接地电流及夹件接地电流、负荷、温度与有载分接开关的动作情况,并与高端换流变压器进行对比,确定了故障类型,明确了乙炔体积分数异常增长的原因.最后提出了相应的防范措施,以保证特高压换流变压器安全运行.
Abstract
The phenomenon of abnormal increase in acetylene volume fraction in low-voltage converter transformers of a ultra-high voltage converter station is analyzed.The oil chromatography data,core grounding current and clamp grounding current,load,temperature,and operation of on-load tap changers of the low-voltage converter transformers are analyzed,the comparison with the high-voltage converter transformers is conducted,the fault type is identified,the reason for the abnormal increase in acetylene volume fraction is determined.Finally,the corresponding preventive measures are proposed so as to ensure the safe operation of ul-tra-high voltage converter transformers.
关键词
特高压/换流变压器/乙炔/有载分接开关Key words
ultra-high voltage/converter transformer/acetylene/on-load tap changer引用本文复制引用
出版年
2024
NETL
NSTL
万方数据