Gas filled surge arrester
US4491893A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1983 |
| Grant date | Jan 1, 1985 |
| Priority date | — |
| Expiry date | May 10, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T2/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gas filled surge arrester which has an extremely fast response to rapidly increasing surge voltages. A pair of electrodes define a discharge gap which is held in the range of 0.02 mm to 0.25 mm. A high electron emission ability substance partially fills a cavity in each electrode. At least a pair of conductors are associated with each electrode. The conductors define a discharge gap with the opposite electrode. The gap is held in the range of 0.02 mm to 0.30 mm. A gas made up of one or more of the noble gases and hydrogen fills the arrester. The hydrogen is held in the range of 0.1% to 20% of the total volume of the gas in the arrester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.