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Current transformer illustration showing a power cable passing through a toroidal core with secondary winding connected to an ammeter
Posted inElectrical Field

What Is a Current Transformer? Working Principle, Types & Applications

Imagine you need to measure the current flowing through a busbar that carries 400 amperes. A standard ammeter would melt the moment you connected it in series — its internal…
Posted by David wisay October 18, 2026

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