The electrician knowledge channel of the company has not been updated for a long time. Now it continues to share some basic knowledge provided by some engineers. I see that many customers always mention the wiring diagrams of some electrical appliances, and I share some here. The main content of this paper is the wiring mode of current transformer connected to ammeter and voltmeter.

，实物接线图如下：

Firstly, the physical wiring diagram is as follows:

互感器，电流表，电压表的实物接线图

Physical wiring diagram of transformer, ammeter and voltmeter

相关产品说明：电流互感器3台，电流表三只，指示灯三只，电压表一只，LW2转换开关一个。

Related product description: three current transformers, three ammeters, three indicator lights, one voltmeter and one lw2 universal transfer switch.

基本的接线方式如上，附一些相关说明：

The basic wiring mode is as above, with some relevant instructions attached:

2 5 7接电源，3、6接电压表

2, 5 and 7 are connected to the power supply, 3 and 6 are connected to the voltmeter

A，B，C相线，A接5，B接7，C接2。知识图中所示接线，一般情况下，任意接，通过旋转开关转换供电压表显示相应两相的电压值即可。

A. B and C phase lines, a connected to 5, B connected to 7 and C connected to 2. Generally, the wiring shown in the knowledge diagram can be connected arbitrarily, and the voltage value of the corresponding two phases can be displayed on the power supply voltmeter by rotating the switch.