怎么用数字万用表测量风扇电机的好坏

2024-11-18 19:00:15
推荐回答(5个)
回答1:

1、用万用表的电阻档测量线圈。不分红黑表笔。RX1K档也可以,因为线圈没有烧的痕迹。只要线圈是通就好,用1K档灵敏些。一支表笔接一根线。

2、另一只表笔依此测3根线。有一根线会通,这就是一组线圈。剩下的2根就是另一组线圈。这种排风扇的两组线慎手困圈是一模一样的,启动和运转绕组随便哪组都可以。

3、再测量两组线圈是否互相绝缘。如图。

4、接着万用表扳在RX10K档测每个绕组的绝缘性。

5、测定的结果应该是两绕组和外壳是绝缘的,指针不会动。注意不能让手接触两表笔的金属部位。因为人的双手接触表笔也有几十千欧的电阻,达到这两个条件,电机是会正常工作的。

扩展资料

注意事项

1、看随机文件

电机风扇随机装有使用说明书、产品合格证、电气线路图和装箱单,要清查装箱单、核对零部件。

2、看电机风扇外形

仔细查看电机风扇网罩和扇叶是否有明显变形。转动扇叶,应该轻快灵活,不应总在同一位置停下。

3、看启动性能

启动性能好坏是电机风扇的重要质量指标。检验时,在慢速档,电源额定电压85%时,电机风扇应该能从静止启动,并且正常运转,一台电机风扇从启动到正常运转所需的时间越短,电机风扇的启动性能越好。

4、看调宽念速性能

通电后,风扇机械传动部分不应该有异常噪声。电风扇在高、中、低速运转时,电机和扇叶都应平稳、振动小、噪声较低。电机风扇摇头、停摆应敏捷,无间歇薯游、停滞和抖动现象。

5、看是否漏电

电机风扇电后,手触碰如有麻电感觉,用试电笔测试,试电笔也有发光显示,可判定外壳漏电,不能要。

6、看电机风扇连续运转情况

电风扇连续运转2小时后,如果机头外壳表面烫手,说明温度过高,不能用。正常情况下,机头外壳表面温度在50℃以下,不应有烫手的感觉。

参考资料:百度百科-电机风扇

回答2:

将数字万用表档位放基逗蚂在Ω档2kΩ档,风扇电机是单相交流220v的,用启动电容启动,电机有两个绕组,一个是启动绕组,一个是运行绕组;启动绕组电阻大些,运行绕组电阻小些。实际电机出线有搏埋3根,用万用表分别测3根线间的直流电阻,最大值为启动绕组+运行绕组的阻值,其次为启动绕组的阻值,再次为运行绕组的阻值。
在将万用表档位放在20MΩ档,测量绕组(用电机三根线中任意指悄一根)与电机定子铁芯间的绝缘电阻,阻值应该在2MΩ以上,即可判定电机唯有问题。

回答3:

断电一表笔接红线:
对黑约为490欧
对黄约租粗铅为730欧
黑。黄=490+730=1220欧。
一表笔接白;
对凳弊红约95欧
对蓝约95欧
红,蓝=95+95=190欧。
数据与线的材质和电机功率有弊好关。与你的电机不尽一至。
但它的阻值规律不变。

回答4:

加我的号253239897,轮升仔摇头什么变速不要了直接开关,腊汪电容到马达笑芦就好了,马达你查查电阻,那马达不会坏的,搞点油就好了,在不明白接线就加我的号,

回答5:

这样插得就是正确的。档位选在2kΩ就行

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