Current transformer
US4214199A · kind A · utility
0Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Jul 22, 1980 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/427
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-voltage current transformer has an external inductance element electrically connected thereto. The inductance element has a relatively low magnitude of inductance, compared with the inductance of the current transformer, to cause a substantial increase in the excitation current which significantly reduces the residual flux in the current transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.