摘要
配电变压器(DTs)作为电网关键设备,其故障影响电网可靠性,而其运行连续性取决于绝缘条件和热斑温度(HST)。精确建模对HST值起关键作用的保护器,在500 kVA DT中使用光学传感器,通过CFD精确模型,验证所提HST预测公式在实验温度波动测试中的准确性,为变压器检测提供新思路。
As a key equipment of power grid,the fault of distribution transformers(DTs)affects the reliability of power grid,and their operation continuity depends on insulation conditions and hot spot temperature(HST).In this paper,the protector that plays a key role in the HST value is accurately modeled,and the accuracy of the proposed HST prediction formula in the experimental temperature fluctuation test is verified by using an optical sensor in 500 kVA DT and a CFD accurate model,which provides a new idea for transformer detection.
作者
陈继瑞
CHEN Jirui(State Grid Shuozhou Shentou Power Supply Company,Shuozhou 036000,China)
出处
《电工技术》
2025年第S1期67-69,共3页
Electric Engineering
关键词
配电变压器
热斑温度
CFD
distribution transformer
hot spot temperature
CFD
