神马品牌网杨钰莹月满情怀:英语高手帮忙解决一下~!!!
来源：百度文库 编辑：神马品牌网 时间：2024/04/27 20:33:26
Most single-phase systems are supplied from a three-phase primary.The primary of a single-phase transformer is connected to one phase of the three-phase system.The secondary contains two coils connected in series with a midpoint tap to provide a single-phase,three-wire system.This rangement is generally used to supply power to residential occupancies and some commercial establishments.A schematic diagram is shown in Fig.
大多数的单相系统从一个三状态的提名候选人的预选会被供应。单相变压器的提名候选人的预选会被连接到状态的三状态系统。第二次的包含 , 二卷在和中点轻打的系列中连接了提供一个单相又三电线的系统。这排列通常用来提供力量给住宅的占有和一些商业的建立。一个概要的图表在图被显示