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1、运行电容线和起动电容线并联接于副绕组的一端。

　　2、起动电容余下的线头连接离心开关线头。

　　3、开关余下的连接线和运行电容余下的连接线，并联接后和主绕组并接与连接电源线。

　　4、余下的主绕组和副绕组的各连接线头并接与另一根电源线。

　　5、接绕组线头时先除去绝缘层。

　　6、使电机向相反方向旋转，需把主绕组两个电源线对调位置，电机反方向旋转即可完成。

　　单相电动机电容选配

　　1、一般运行电容每百瓦按4.5微法选取。启动电容因为启动后断开，所以可在很宽范围内选取。1KW以内的电机选200微法450V，2000W以内电动机可按300-400微法选取。

　　2、单相电机一般是指用单相交流电源（AC220V）供电的小功率单相异步电动机。这种电机通常在定子上有两相绕组，转子是普通鼠笼型的。两相绕组在定子上的分布以及供电情况的不同，可以产生不同的起动特性和运行特性。

　　一般运行电容每百瓦按4.5微法选取，启动电容因为启动后断开，所以可在很宽范围内选取，1KW以内的电机选200微法450V.。2000W以内电动机可按300-400微法选取。

　　修电机时，如果对配用的电容器选择不当，会给电机带来严重后果。更换启动、运转电容时，好选用与原配置参数相同的电容。

　　如果电容器损坏，又不知道或看不清标注参数，可按下面公式计算选配：

　　C=8JS（uF）

　　式中，C-配用的电容量，单位为微法（uF）；J-电机启动绕组电流密度，一般选5～7A／平方mm；s-启动绕组导线截面积（平方mm）。

　　台扇电机启动绕组线圈重新绕制后，测出启动绕组线径为0．17mm，则截面积S=0．0226平方mm，选J=7A／平方mm，所以

　　C=8×7×0．0226≈1．26uF

　　实际选配参数为1．2uF±5％，耐压500V的电容。另外应注意电容的耐压值要高于400V，以防击穿。

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