有关厂用电计算的若干问题

Some Problems on the Calculation of Auxiliary Power System

针对高压厂用变压器的低压侧厂用母线电压调整计算提出“倒推法”，此方法可确定高压厂用变压器低压侧支路所应承载的最大和最小负荷，相应地可确定在任一工作状态下的最大和最小负荷裕度；改进高压有载调压起动／备用变压器的分接开关调压范围的确定方法；讨论公用负荷对高压厂用变压器容量的影响。

：The paper is mainly on three aspects：firstly，for the calculation of voltage adjustment on the low side of H．V． auxiliary transformer，a method called back－deduction method is proposed，which has the merits of anticipating the limit load and correspondingliy avoiding repetitive calculation．Secondly，an improvement on the method for tap changing switch of start／back－up transformer is given．Thirdly，the impact of common load on the capacity of H．V．auxiliary transformer is discussed．