Overvoltage protection device
US4314303A · kind A · utility
1Cited by
3References
16Claims
0Family size
Inventors
Key dates
| Filing date | Sep 18, 1979 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Sep 18, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/007
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An overvoltage protection device for metal-encased, gas-insulated high-voltage lines is disclosed. The device includes a low pass filter which comprises an inductance connected in series with the inner conductor of the high voltage line, and a capacitance connected between the inner conductor and the grounded casing. The inductance and capacitance form the low-pass filter which serves as a trap for high-frequency traveling waves. The invention is especially suited for protection of metal-encased and gas-insulated high-voltage lines and installations in conjunction with a conventional overvoltage arrester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.