Varistor inserter device for a high-voltage circuit-breaker
US5264671A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | May 21, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/765
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for temporarily inserting an electrical component such as a varistor connected to a contact arm carrying a metal contact ring in parallel with the contact of a circuit-breaker comprises a small diameter metal tube mechanically joined and electrically connected to the exterior of the main mobile contact. A rod can slide inside the small diameter metal tube. The rod has at a first end, a metal contact sleeve which can come into electrical contact with the metal contact ring. The sleeve abuts a first end of the small diameter metal tube. The second end of the rod carries a conical abutment. The second end of the tube has a bore which terminates in a conical interior shape profile complementary to and sized to that of the abutment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.