Air gap back-up surge arrester
US4133019A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1976 |
| Grant date | Jan 2, 1979 |
| Priority date | — |
| Expiry date | Nov 12, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R9/2441
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a three-element gas tube fail-safe station protector of known design modified to incorporate a back-up air gap system. To the ground terminal stud of the protector is added a lateral conductive member defining a pair of blade-shaped ground electrodes. To each of the line electrode terminal studs is added a conductive blade-shaped electrode which overlaps and is spaced from a respective one of the ground electrodes. The air gaps which are thus defined between ground and each line, i.e. paralleling the gas tube gaps, are encapsulated and dimensioned to provide back-up ionization in the event of a failure of the gas tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.