中国铁道科学2011，Vol.32Issue(3)：80-85,6.
V/X接线牵引变压器的温升特性
Temperature Rise Characteristics of V/X Wiring Traction Transformer
摘要
Abstract
According to the unique connection mode, electrical characteristics and load characteristics, the internal thermal circuit of V/X wiring traction transformer was established based on the thermoelectricity analogy principle and the thermal transfer process in transformer.Referring to the circuit theory, the differential equation for calculating temperature rise was deduced.According to the relationships among the thermal characteristic parameters, the calculation model was constructed for the internal temperature rise of V/X wiring traction transformer.The process of an electric locomotive running in and out the power supply section of a V/X wiring traction transformer was taken for example, the temperature curves of the top layer oil and the winding hot-spot were simulated.Through analyzing the influencing factors of winding insulation life and based on the characteristics of traction load, a calculation method for insulation life loss applicable to V/X wiring traction transformer was proposed.关键词
V/X接线牵引变压器/热路/热点温度/绝缘寿命Key words
V/X wiring traction transformer/ Thermal circuit/ Hot-spot temperature/ Insulation life分类
交通工程引用本文复制引用
韦国,闵英杰,周利军,吕玮,吴广宁..V/X接线牵引变压器的温升特性[J].中国铁道科学,2011,32(3):80-85,6.基金项目
铁道部科技研究开发计划项目(2002J036) （2002J036）
