变配电所负载侧有备用电源的经济运行分析

Analysis of Economic Operation of Load of Substation Equipped with Backup Power

变配电所为有备用电源的负载供电时,从节电降低损耗的角度来讲,应根据变配电所及其供电线路和供电负载在可选择的运行方式中优选损耗小的经济运行方式.何种情况下可选用备用电源供电,不仅与负载的大小有关,还与变配电所的变压器技术特性参数、电力线路技术参数密切相关,本文通过定量分析计算变压器经济运行的临界负载,得出正确的判定.

When a substation powers load equipped with backup power, economic operation mode with less power loss is optimized among optional operation modes based on the substation, its line and load, for purpose of saving energy. The conditions in which back power is employed relate to load, technical characteristic parameters of transformers in the substations and technical parameters of power lines. Right decisions are obtained by quantitatively analyzing the critical load of economic operation of a transformer.