Electric circuit breaker assembly
US3985988A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1974 |
| Grant date | Oct 12, 1976 |
| Priority date | — |
| Expiry date | Sep 30, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/903
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit breaker assembly is provided with a pair of contact elements defining therebetween an arc site across which an arc is struck upon separation of the contacts to break the circuit within which the breaker is connected. A compressed gas contained within a quenching chamber is caused to flow across the quenching site to quench the arc upon breaking of the contact. A pair of electrodes located within an auxilliary gas chamber operate to strike a second arc simultaneously with the circuit breaking operation in order to increase pressure in the auxiliary chamber thereby providing auxiliary power to enhance the circuit breaking operation and quenching of the main arc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.