A current transformer is an electrical device used to measure alternating current by producing a reduced current proportional to the current in its primary circuit. It is crucial for safely monitoring and controlling high voltage systems by allowing the measurement instruments to be isolated from high voltage circuits.

Current Transformer

current transformer

electrical device

Alternating current (AC) is an electric current that periodically reverses direction, in contrast to direct current (DC) which flows only in one direction. AC is the form of electrical power that is delivered to homes and businesses, and it is the form of electrical energy that consumers typically use when they plug appliances into a wall socket.

alternating current

reduced current

primary circuit

high voltage systems

measurement instruments

isolated from high voltage circuits

Theory and Principles of Overcurrent Protection Devices

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