Electrical system with a stress shield system for partial discharge on-line monitoring of the state of high-voltage insulation
US6504382B2 · kind B2 · utility
10Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Feb 2, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B11/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrical system and a sensor for on-line monitoring of the state of high-voltage insulation in the electrical system. In this arrangement, the signals associated with partial discharge activity are monitored and transmitted from the sensor to monitoring instrumentation. The sensor is interconnected with the potential stress shield of existing bushings. The capacitance in the bushing between the main conductor and the stress shield conducts partial discharge current which is available for being sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.