Electric circuit protector comprising parallel-connected liquid-metal current-limiting devices
US3991396A · kind A · utility
11Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | May 7, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H87/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A liquid-metal circuit protector comprises two liquid-metal current limiting devices electrically connected in parallel with each other. Each current limiting device comprises a pair of spaced terminals and a passageway extending between said terminals and containing liquid metal. The passageways are hydraulically connected in series in a hydraulic circuit loop. Pumping means operated by current through the protector forces liquid metal around the loop via each of the passageways, and heat exchange means external to the passageways cools the liquid metal during its flow through the loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.