二(单)相三线和三相四线(△)供电制式经济分析

Economy Analysis on Single-phase 3-line And 3-phase 4-line(△) Distribution System

美、日和南美诸国低压电网采用单相三线和△形三相四线制,这是两种节约材料、降低线损、改善电压质量的优良供电制式。本文结合国内情况对其经济效益进行探讨。

Single phase three wire and delta connected three four wire low voltage systems which wildly used in United States, Japan and South American countries are two good distribution systems. These save material and energy and improve voltage quality. This paper deals with their economic benefits per Chinese conditions.