current transformers
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Current Transformer Primary Turns Explained
June 16th, 2020:
The Current Transformer (or CT) is a type of “instrument transformer” which produces an alternating current in its secondary winding that is proportional to the current being measured in its primary. Current transformers can reduce or “step-down” current levels from thousands of amperes down to a standard output of either 5 Amps or 1 Amp for normal operation. Therefo -
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How to Size a Current Transformer
May 15th, 2020:
The Current Transformer (CT) is used to sense AC current in single-phase or three-phase circuits. In the basic instrument-grade current transformer, a single primary conductor passes through the core. The secondary winding has multiple turns to provide a lower output current, as shown in the diagram. This allows the meter to be located away from the high current circuit.