Post insulator and direct current power transmission device
US11791068B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 14, 2020 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Aug 6, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A post insulator includes an insulating post including a first end and a second end that are opposite to each other, a high-voltage-end grading ring connected to the first end of the insulating post, the high-voltage-end grading ring being insulated from the insulating post, a grounding-end grading ring connected to the second end of the insulating post, the grounding-end grading ring being insulated from the insulating post, and a charge control ring disposed on an outer surface of the insulating post, the charge control ring being insulated from the insulating post, and the charge control ring being configured to accumulate surface charges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.