Measuring device having an auxiliary electrode for a gas-insulated encased high-voltage conductor
US5166600A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1991 |
| Grant date | Nov 24, 1992 |
| Priority date | — |
| Expiry date | Sep 23, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The measuring device is incorporated in a projection of the casing. Its auxiliary electrode forms the high-voltage capacitor of a capacitive voltage divider together with the internal conductor, and is connected with the casing via a low-voltage capacitor. The measurement connection emerges from the projection in gas-tight manner, and is connected to a display or measuring device. In order to be able to detect high-frequency compensation operations, also, the low-voltage capacitor consists of two nested cones with a solid dielectric. A terminal resistor which is connected to the internal conductor of a gas-tight coaxial connector is arranged in the inside cone. The terminal resistor is adapted to the characteristic impedance of the coaxial connector and that of the measurement connection. The measuring device with the auxiliary electrode can be inserted into tubular gas connections in the casing of a high-voltage conductor, especially in compressed gas-insulated, encased high-voltage switch conductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.