A Current Transformer transfers electric energy from one alternating current circuit to one or more other circuits, either increasing or reducing the current. Transformers change current through electromagnetic induction as the magnetic lines of force build up and collapse with the changes in current passing through the primary coil, current is induced in another coil, called the secondary.Attributes:• Used to measure the current flow in different parts of the grid and to detect problems• Manufactured to precise specifications and built for durability and reliabilityApplications:A Current Transformer is used to protect equipment from overloads and short circuits.