Sensitive fault detection system for parallel coil air core reactors
US5027099A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1988 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Mar 30, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F30/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An air core reactor of the type having a plurality of coaxial coil windings connected electrically in parallel by structurally rigid spiders at opposite ends of the reactor. There are two electrically conductive spiders at least one end of the reactor. Selected ones of the coil windings are connected to one of the two spiders and further selected ones of the coil windings are connected to the other of the spiders at the one end. In the preferred form the windings connecterd offset from one another around the coaxially disposed coils. In a further preferred embodiment, there are two electrically conductive spiders at each of opposite ends of the coaxial coils. In a still further preferred form, at least some of the coil windings are wound at least two conductors high with the same number of turns and wherein the ends of said two conductors are circumferentially offset from one another by preferably 180.degree.. In the most preferred form all coil windings are wound at least two conductors high ("n" high where "n" is an even number). The two spiders at one end may be a single structural unit with two separate electrically conductive spiders mounted thereon and carried thereby, or the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.