万能转换开关是怎么实现检测Uab、Ubc、Uca之间的线电压的?

2017/9/22 15:47:30   浏览量:116

LW5-16YH3/3万能转换开关用在电压回路测量电压时,是怎么实现检测Uab、Ubc、Uca之间的线电压的?求过程

开关可以转换四个位置,分别成90度角,零位六组触点都不通,AB位置,1,2和7,8两组导通。AC位置,3,4和9,10两组导通,BC位置,5,6和11,12两组导通。导通的两组将本相电通过611和612加到PV两端,显示出两相电压。

A611,B611,C611并两根是为了增加一对输入触点。

2,6,10接在一起,4,8,12接到一起是为了将不同的三相电引到电压表两端。

转换开关 LW5-16 YH3/3 字母和数字分别表示的是:

LW--万能转换开关的"万能"的反拼音;

5--设计序号;

16--开关触头能承受的额定电流;

Y--电压;

H--转换的"换"的拼音首字母;

3--三相;

3--三节.

LW5-16 YH3/3 的意思就是用于电压指示转换相间电压的万能转换开关.

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