| Abstract: |
| Current Transformer (CT) modeling, by which CT’s characteristics can be studied has a significant importance in CT
selection and design. In spite of numerous studies about closed-core CT model, only a few works have been conducted on
air-gapped ones with the following problems: models of which required data is easily-accessible, have poor simulations of
magnetization process; on the contrary, models which have satisfactory simulations, are hard to be established because of
the hard-to-get required data. Therefore, based on Preisach Theory, a novel air-gapped CT model is deduced from the
closed core CT model. The proposed model is accurate and can be established easily. The saturation and remanence
properties of closed-core CT and air-gapped CT are simulated and compared. |
| Key words: CT modeling, Air gap, Preisach Theory, Saturation, Remanence |
| DOI：10.1186/s41601-017-0046-0 |
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| Fund: |
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