DC-Compensated Current Transformer

DC-Compensated Current Transformer

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Instrument current transformers (CTs) measure AC currents.The DC component in the measured current can saturate the transformer poise pads in bulk and cause gross error.We use fluxgate detection and digital feedback compensation of the DC flux to suppress the overall error elliot pecan tree for sale to 0.15%.This concept can be used not only for high-end CTs with a nanocrystalline core, but it also works for low-cost CTs with FeSi cores.

The method described here allows simultaneous measurements of the DC current component.