An Metering Current Transformers are essential devices used in electrical systems to measure alternating current accurately without directly connecting high voltage circuits to measuring instruments. They reduce high currents to manageable levels for meters and protective relays, ensuring safe and precise monitoring. Commonly used in power distribution, industrial facilities, and utility grids, these transformers help track energy usage, maintain system efficiency, and support billing accuracy. Metering CTs play a critical role in modern electrical infrastructure and energy management.