博文

目前显示的是 五月, 2020的博文

The Application of Current Transformer

The  current transformer  is very similar to the transformer. The transformer is mainly used to change the voltage of the line on the line, while the current transformer is mainly used to change the current of the line. There are two types of current transformers for power systems and instruments. Current transformers for power systems are an indispensable electrical appliance in output and power supply systems such as power plants and substations. They are connected to the line for a long time and generally have a current ratio. It is used to measure the current and power on high-voltage lines, and plays the role of insulation and isolation to ensure operation Personnel and instrument safety. The purpose of measuring current transformers is mainly in the following two aspects: to measure high current and power on high-voltage or low-voltage lines, using a unified 5A secondary circuit and measuring instruments. Therefore, there are three main requirements for measuring  c...