Three-phase high-current switchgear apparatus with twinned poles per phase, equipped with magnetic compensation circuits
US6337613B1 · kind B1 · utility
10Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Nov 21, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a three-phase switchgear apparatus having two adjacent poles per phase, the inner pole of each side phase is equipped with a magnetic compensation circuit designed to optimize the current distribution between the two poles and of each side phase in balanced three-phase operation. This arrangement enables the currents flowing in the two poles of either of the side phases to be balanced, by specifically reducing the current intensity and temperature in the inner pole of the side phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.