Method for manufacturing a core for a current transformer
US11322300B2 · kind B2 · utility
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2References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 24, 2017 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2038/305
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are a core for a current transformer and a manufacturing method for the same in which high permittivity is formed in order to optimize electric power acquisition efficiency by magnetic induction at a low current. The provided method of manufacturing a core through the steps of winding a metal ribbon, heat treating a core base, impregnating, cutting and polishing, wherein after the core base which is inserted into a mold is heat treated to implement a shape, the core base separated from the mold is heat treated to manufacture the core for the current transformer having high permittivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.