Partial discharge detection test link, partial discharge detection system and methods for detecting partial discharge on a power cable
US6930491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2001 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Jan 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A partial discharge detection test link and system is disclosed to detect partial discharge of a power cable accessory. The power cable accessory includes a first accessory component and a second accessory component connected to each other. The partial discharge detection test link is a permanent or temporary substitute for a conventional service link, connects directly across the power cable accessory and includes a conductor member and a partial discharge sensor. The conductor member has an electrically conductive element and an insulation surrounding and extending along the electrically conductive element. The electrically conductive element is electrically connected directly between the first and second accessory components. The partial discharge sensor is disposed about the conductor member and has the electrically conductive element as a primary winding and a secondary winding with the insulation positioned between the primary and secondary windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.