Method and apparatus for drying transformer parts
US5131167A · kind A · utility
4Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1990 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jan 4, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a power supply for the electric drying of transformer parts, particularly paper insulation of the windings. For this purpose, a converter is selected as a voltage source which converts an alternating voltage, e.g. alternating supply voltage of 50 Hz, into a variable frequency in the range of 0 and 25 Hz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.