Overview of zero phase current transformers

The zero phase current transformer is a line fault current monitor. Generally, there is only one iron core and secondary winding. When using, the primary three core cable is passed through the iron core window of the transformer, and the secondary wire is connected to a special relay, and then the output terminal of the…

Current transformer selection points

Current transformer selection points (1) The rated frequency of the current transformer should be consistent with the current frequency of the line under test. (2) Select the rated voltage of the current transformer according to the voltage level of the line under test to ensure the safety of the staff and the instrument. Never use a current…