Measures to determine the saturation point of Multi Core Current Transformer

The direct experimental method is to bring a practical load on the secondary side, pass in current from the primary side, and observe the secondary current to find the saturation point of the Multi Core Current Transformer. However, the saturation point of the transformer may exceed 15-20 times the rated current. When the Multi Core Current Transformer becomes larger, it will be difficult to stop the experiment on site.

In addition, the saturation point of the Multi Core Current Transformer can also be measured through the volt-ampere characteristic experiment. As mentioned earlier, the saturation of the Multi Core Current Transformer is due to the dead core magnetic flux densely crossing the saturation current of the large generator. The experimental method of the volt-ampere characteristic is: the original side is opened, the current is passed in from the secondary side, and the voltage drop on the secondary side winding is measured. Due to the demagnetization effect of the original square flow of the Multi Core Current Transformer, under the action of a small current, the heart will saturate easily. Therefore, the volt-ampere characteristic experiment does not need to add a large current, which is easier on site