500kV变压器本体介质损耗因数温度换算研究

Research on Temperature Conversion of Dielectric Loss Factor of 500 kV Transformer

记录了3台500 kV油浸式变压器介质损耗在不同温度下的测试值,结合电介质介损相关理论知识,分析变压器绝缘材料介质损耗温度特性与规程所提经验公式不符合的原因,并提出解决方案。

The test values of dielectric loss of three 500 kV oil immersed transformers at different temperatures are recorded.Combined with the relevant theoretical knowledge of dielectric loss,the reasons for the inconsistency between the temperature characteristics of dielectric loss of transformer insulating materials and the empirical formula proposed in the specification are analyzed,and the solutions are put forward.