Explanation on the relationship between the number of turns and transformation ratio of current transformer
Mar 20, 2023| In fact, this problem mainly involves core-through transformers. Through corresponding tests, it is known that the ratio of its primary current to secondary current is equal to the inverse ratio of the primary turns to secondary turns ratio. That is to say, if the number of turns of the core of the transformer is 1 turn, its transformation ratio is 500/5; the number of turns of the core is 2 turns, and the transformation ratio becomes 250/5. The transformation ratio of the current transformer It changes with the number of core turns.
According to this relationship, we can also calculate the current of the current transformer, which is used to control the size of the current passing through the current transformer, so that the device is burned out due to excessive current. It can be seen that the knowledge in this area is very important. If it can be mastered well, it can protect the current transformer to a certain extent.


