Clamp Current Transformer, also known as a clamp-on current transformer or simply a clamp meter, is a device used for non-invasive measurement of electrical current in a conductor. It is designed to easily clamp around the conductor without the need for physical contact or interrupting the circuit. Clamp Current Transformers utilize the principle of magnetic induction to measure the magnetic field generated by the current flowing through the conductor. By clamping around the conductor, the transformer can accurately measure the current without the need for direct electrical connections.