On-load tap changer head and on-load tap changer having an on-load tap changer head
US11177068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2017 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Nov 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2009/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An on-load tap changer head includes: a first region for an insulating fluid of the on-load tap changer to flow; a second region separated from the first region by a wall; and a detector for detecting an increased flow speed of the insulating fluid. The detector includes: a flow flap in the first region configured to tilt from a defined flow speed of the insulating fluid from a first position to a second position; a first magnet secured to the flap such that in the second position of the flow flap, the first magnet is in an immediate vicinity of the wall; a second magnet in the second region in the immediate vicinity of the wall; and a switch in the second region that is operationally coupled to the second magnet such that tilting over of the flow flap from the first position to the second position actuates the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.