一例出口的长输电线路末端的电力变压器设计

摘要

This paper designed a kind of export power transformer at the end of long transmission line. Analysis was made to the calculation method of transformer power supply voltage change caused by impedance voltage drop of superior bus and transmission lines, as well as the re-lationship of the voltage regulating mode, power supply lfuctuation range and frequency at the primary side of transformers. It is pointed out that in the process of transformers design, the comprehensive analysis should be carried out for the concrete project, the reasonable selection should be made for transformer parameters and the transformer structure should be improved.%设计了一种出口的长输电线路末端的电力变压器，分析了由于上级母线和输电线路产生的阻抗压降引起的变压器电源电压变动时的计算方法，及变压器一次侧调压方式和电源波动范围、频率的关系。指出变压器设计过程中要针对具体的项目进行综合分析，合理选择变压器参数，改进变压器结构。