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DOE OSTI · 1922413

Sensing Service Transformer Secondary Currents using Planar Magnetic Pick-up Coils

Kulkarni, Shreyas·Divan, Deepak
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Abstract

The rapid deployment of distributed energy resources (DERs) is creating stresses on utility assets in the distribution networks. The service transformer, which is the most commonly used utility asset is often not monitored, since the cost of available sensing solutions is as high as the transformer itself. This paper presents a method to use an array of printed circuit board coils to intelligently monitor North American pole top service transformers. The approach, uses a novel, self-calibrating algorithm to infer the fixed geometry of the installation, by recording data over an extended period of time. The proposed method can enable rapid installation of a non-intrusive sensor that can be used to monitor loading levels of the distribution transformer. Furthermore, these sensors can help in planning, prognostics and advanced situational awareness for utilities.

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Kulkarni, Shreyas, Divan, Deepak. 2020-02-01. Sensing Service Transformer Secondary Currents using Planar Magnetic Pick-up Coils. https://doi.org/10.1109/isgt45199.2020.9087761

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