Transformer insulation modification
US11942254B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2021 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Aug 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/245
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three-phase transformer including a transformer housing, a shell-form five-limb transformer core wherein main limbs include two outer main limbs and a middle main limb, three coil arrangements including two outer coil arrangements each arranged around a respective one of the outer main limbs, and a middle coil arrangement arranged around the middle main limb. The outer coil arrangements have an inter-coil insulation configured to electrically insulate the coil arrangements from the transformer housing and from the respective other ones of the coil arrangements, and wherein no inter-coil insulation is provided to the middle coil arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.