Method for deicing energized electrical transmission lines
US7271508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2003 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Oct 1, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G7/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for deicing energized electrical transmission lines by means of an apparatus capable of producing an angular offset between its terminals. The method consists in: selecting segments (4, 6) of electrical transmission lines to de deiced, connecting the segments (4, 6) so as to form a loop, connecting the apparatus in series with the segments (4, 6) of the loop to be deiced. In the case of an apparatus with adjustable angular offset, it consists in switching on the apparatus and adjusting the angular offset to impose an increase of current flowing in at least one of the segments (4, 6) as the case may be. In the case of a apparatus with fixed angular offset, it consists in using a switch (54) or a circuit breaker (28) so as to connect the apparatus in the loop, the apparatus and the line segments being previously selected such that the angular offset imposes the required current increase to the deicing of at least one of the segments (4, 6) of the loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.