CAJ | 학술논문

通过建立油浸式变压器二维等效模型，采用有限元法求解变压器流体-温度场，对比分析了植物绝缘油和矿物绝缘油对变压器热点温度及绕组温度分布的影响，分析了不同入口油速、不同变压器绝缘油对变压器热点温度的影响。结果表明：在同等入口油速下，植物绝缘油的散热特性优于矿物绝缘油，说明采用植物绝缘油代替矿物绝缘油应用于变压器中是可行的。
통과건립유침식변압기이유등효모형，채용유한원법구해변압기류체-온도장，대비분석료식물절연유화광물절연유대변압기열점온도급요조온도분포적영향，분석료불동입구유속、불동변압기절연유대변압기열점온도적영향。결과표명：재동등입구유속하，식물절연유적산열특성우우광물절연유，설명채용식물절연유대체광물절연유응용우변압기중시가행적。
A two-dimension equivalent model of oil-immersed transformer was built, and the fluid-temperature field of the transformer was analyzed by finite element method. The effect of vegetable insulating oil and mineral insulating oil on the hot-spot temperature and winding temperature of transformer was compared, and the influences of oil inlet velocity and different types of oil on the hot-spot temperature were analyzed. The simulation results show that the heat dissipation characteristic of the vegetable oil is better than that of the mineral insulating oil under the same oil inlet velocity, which indicates that the vegetable insulating oil can replace the mineral insulating oil applied in transformer.