FIELD: electrical engineering; high-voltage current-limiting fuses.
SUBSTANCE: current-limiting fuse has insulating body accommodating fusible link and filled with arc-suppression material, as well as caps closing this body at ends. Fusible link is made in the form of two parallel spirally coiled fusible members with round-section bar passed through each of them and rigidly fixed to caps; this bar is made of shock-proof and arc-resistant material such as mullite-corundum, its diameter being smaller than that of spiral. Fusible member is made for instance in the form of variable-section round wire or perforated band.
EFFECT: enhanced rated currents, reduced minimal disconnecting currents, improved specific characteristics, reduced cost of fuse.
5 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HIGH-VOLTAGE CURRENT-LIMITING CUTOUT | 1996 |
|
RU2105377C1 |
| EXPULSION FUSE | 0 |
|
SU1092595A1 |
| HIGH-VOLTAGE FUSE | 1994 |
|
RU2074443C1 |
| FUSE | 0 |
|
SU1201914A1 |
| HIGH-VOLTAGE CURRENT INTERRUPTER | 0 |
|
SU796951A1 |
| HIGH-VOLTAGE CUT-OUT | 0 |
|
SU684644A1 |
| CHANGEABLE COMPONENT | 1996 |
|
RU2112298C1 |
| HARD-GAS ARC-EXTINGUISHING DEVICE | 0 |
|
SU978224A2 |
| FUSIBLE CUTOUT | 0 |
|
SU1410134A1 |
| HIGH-VOLTAGE CURRENT-LIMITING CUT-OUT | 0 |
|
SU604050A1 |
