| 发布时间：2019-10-11 | 浏览数：载入中... Source: http://shihaojs.com/ | Release time: 2019-10-11 | Views: Loading ...
What is the role of the isolation transformer ? What is the nature of the isolation transformer ? This is the problem that Shanghai Huanniu has to solve for everyone in this article. Without saying a lot, let's get to the topic.
I. The role of the isolation transformer
The main function of the isolation transformer is to completely isolate the electrical of the primary side and the secondary side, and also isolate the circuit. In addition, by utilizing the characteristics of high frequency loss of the iron grate, it is possible to suppress the introduction of high frequency clutter into the control circuit. Isolation transformers are used to suspend the secondary ground, which can only be used in small and short power supply areas. At this time, the system's capacitance current to ground is small enough to cause harm to people. There is another very important role.
Second, the nature of the isolation transformer
Isolation transformer is a safety power supply, generally used for machine maintenance and protection, lightning protection and filtering. The isolation transformer is a 1: 1 transformer. Primary single-phase 220V, secondary is single-phase 220V. Or primary three-phase 380V, secondary energy is also three-phase 380V. First of all, the AC power supply voltage we usually use is connected to the ground with one line, and the other line has a potential difference of 220V with the ground. Contact with people can cause electric shock. The secondary difference of the isolation transformer is not connected to the ground, and there is no potential between any two of its wires and the ground. It is safer for people to get an electric shock if they touch any line. Secondly, the output end of the isolation transformer is completely “opened” and isolated from the input end, which effectively plays a good role in filtering the input end of the transformer (the power supply voltage from the power grid). Thus, a pure power voltage is provided to the electric equipment.
上海环牛简析隔离变压器的作用 2019-10-11A brief analysis of the role of isolation transformers in Shanghai Huanniu