Transient voltage distribution improving line shield for layer wound power transformer
US4153891A · kind A · utility
14Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1977 |
| Grant date | May 8, 1979 |
| Priority date | — |
| Expiry date | Dec 16, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved electrostatic shield assembly for power transformer windings provides a decreased shield to winding insulation spacing. The decreased spacing substantially improves the capacitive coupling between the windings and shield, reducing transient voltage oscillations within the windings caused by external lighting surges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.