What is this change-over switch for?

A transfer switch is a load circuit containing two or more circuits. In electrical equipment, if a circuit has a problem or failure, it will be automatically connected to the standby circuit or other circuits through the transfer switch. This kind of changeover switch is generally suitable for switches controlled by machine tools and electrical appliances. Because it is flexible to install and easy to operate.

His main functions are as follows. 1 leakage protection

The change-over switch is different from other products and involves circuit problems. The first function of the transfer switch is as a protective device. There are many kinds of transfer switches, and there are also many kinds of switch products. Each product has a different internal structure, but it has a protective effect. In addition, the connection modes of various transfer switches are also different.

2 conversion

Transfer switches generally include voltage transfer switches, cam switches, three-phase and four-phase transfer switches, and their different functions also lead to different connection modes of transfer switches. The main purpose of the universal switch is that there are many wiring lines, so the controlled power supply lines are also relatively wide, and it is also very convenient to convert. Its main function is the conversion between voltmeter and ammeter, and the control of long-distance transmission such as measurement and control.

Connection method of transfer switch

Taking automatic transfer switch as an example, the connection method of transfer switch is introduced. The automatic transfer switch has four gears: manual, automatic, bypass and stop. Each gear corresponds to a different connection mode and connection object. Facing the switch, it is divided into four aspects: left, right, up and down. Behind the switch panel is the wiring. First, the left, right, up and down are grouped, and the grouped lines are wired. You need to experiment yourself to understand the mystery.

The main purpose of the transfer switch

Because the circuit of the transfer switch is relatively large, it is generally used in circuits below 380 volts, AC circuits above 50HZ, DC voltage below 220 volts, for the control of the transfer circuit, as well as electric meters and so on.