Device for monitoring the vacuum quality of a vacuum circuit breaker
US10153112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2015 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Sep 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10015
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for monitoring vacuum quality of a vacuum circuit breaker, the device including at least one rigid assembly including a first stationary conductive surface that is separated by an insulating layer from a second stationary conductive surface that is grounded. The assembly forms a first capacitor having a fixed value, the first stationary conductive surface being arranged opposite an electrically active portion of the vacuum circuit breaker to form, together with the portion, a second capacitor, and an electronic circuit for measuring a variation in voltage of the first capacitor that is representative of a change in state of the vacuum of the circuit breaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.