High voltage electric fuse
US4486734A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1983 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Apr 8, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This high voltage fuse comprises a pair of spaced terminals and a fusible conductive element connected between the terminals. At spaced locations along the length of the fusible element, there are bodies of a material that exothermically reacts when heated to a predetermined temperature. Connected between the terminals independently of the fusible element is a triggering circuit. The bodies of exothermic material are connected in good heat-transfer relationship with the triggering circuit and the fusible element so that the heating effect of current through the triggering circuit upon disruption of the fusible element causes the material of said bodies to exothermically react and thus cause further disruption of the fusible element at additional locations respectively located adjacent said bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.