A Current Transformer is used to measure alternating current in power systems. It operates on the principle of electromagnetic induction. It consists of a primary winding and a secondary winding wound around a magnetic core. The primary winding is connected in series with the current-carrying conductor, allowing the current to flow through it. The secondary winding is connected to measuring instruments or protective relays.Attributes:• Provides electrical isolation between the primary and secondary circuits, enhancing safety during measurements• Exhibits high linearity, accurately reproducing the primary current waveform in the secondary windingApplications:A Current Transformer is used to reduce or multiply an Alternating Current (AC) while maintaining a proportional relationship between the primary and secondary currents.