文档介绍：目录内容摘要························································································· 1 引言······························································································· 2 第一章负荷计算及变压器的选择························································ 4 负荷计算的目的······································································· 4 负荷计算的方法及主要原始资料·················································· 4 按需要系数法确定负荷计算························································ 8 车间变压器选择··························································