推荐回答(4个)
两相电接三相电的方法:
三相电的颜色:A相为黄色,B相为绿色,c相为红色。目前称为:
A、B、C或L1、L2、L3或U、V、W,顺序相同。将三相电源均匀分配到六个空气开口的上端。具体措施有:
空气开口下三相电从左至右分别为1、2、3。
第一个两相空气开口的顶部分别与1和2相连。
第二两相空气开口的上端分别与2和3相连。
第三个两相空气开口的上端分别与3和1相连。
然后,第四个空气开口打开和第一个空气开口接法一样;第五空间开口与第二空间开口相同;
第三位和第六位也是如此。这样,三相空气开口下的三相分布均匀。

扩展资料:
一、三相电与两相电的比较:
1、三相电最明显的优势是需要较小的输电设备,节省成本。三相电只需三条相线,不需要中线(电流互相抵消)。二相电需要四条线,但输电量较小。因此,商业运行的电力系统中,三相电取代了二相成成为了主流。
2、三相电的输出是稳定,没有功率振荡。单相和二相电的发电机会的转轴会发出较大噪音,变压器则由于磁致伸缩发出噪音。
二、三相电负载接法
1、将各负载的尾端与中性线N相接,各负载头端分别与相线相接就构成星形连接。在电工技术中,
我们将负载接成单相220V电压的形式,比如220V的照明灯、单相电动机、单相电炉等。用电设备都
以星形接法接入电路中,应考虑将设备均匀分布于三相电源的相线上,保持三相负载平衡分布。若
不这样,断路器可能会跳闸断开,以示负载不平衡,初次操作的电工人员应注意这点。
2、所谓负载的三角形(△)连接,就是将三相负载中的相的头与另一相的尾相接。这种接法的负载,三
个相电流,三个线电流均为数值相等、相位互差120°的三相对称电流,并且线电流等于1.4倍的相电流。
参考资料来源:百度百科-三相电
参考资料来源:百度百科-二相电
平均分配三相电到六个空开上端即可。具体做法为:空开下的三相电从左到右分别是1、2、3;第一个两相空开上端分别接1和2;第二个两相空开上端分别接2和3;第三个两相空开上端分别接3和1;那么,第四空开和第一空开接法一样;第五空开和第二空开接法相同;第六空开和第三空开接法也一样。这样,就把三相空开下的三相分配均匀了。
如此详细,还望采纳!
另外,说一下那位chengsongcai二级的回答者,提问者问的是“三相电接成两相电”你怎么还接出零线来了。真是不知所谓哦,照你那样接的后果就是会烧坏设备,不知道就别乱回答!
三相开关你接两个的话就是相电压了380V,一般都是照明用电只用220V,直接一根到开关过电灯连零线(一般用黑色的线),如找不到零线就连接地,但要注意使用环境,不能在潮湿和封闭的环境内使用,还有要接地良好,否者有使用危险.
具我个人认为啊,三相电,其实是两根火线,一根是零线的,接灯只需要一根火线一根零线的,用电笔可以量出来的!不过是人命关天的事儿,你最好是请个电工,给你接吧,小心无大错!!!
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