General-purpose converter fuse

Details General-purpose converter fuse General-purpose converter fuse

1995-06-02

1997-09-30

Picard, Leo P.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337158, 337295, H01H 8504

Patent

active

056730144

ABSTRACT:
In known methods heretofore, one could generally distinguish with respect to design and tripping characteristic between the LVHBC fuse (low-voltage high-breaking-capacity fuse), which protects against overload currents, and the semiconductor protection fuse which is quick-acting in the event of a short-circuit to protect, for example, thyristors. The general-purpose converter fuse according to the present invention combines the advantages of both fuses in one unit. This is achieved by the application of fusible elements, which besides having rows of narrow sites as is customary under known methods heretofore, in addition have a row of narrow sites with comparatively long narrow sites, in whose vicinity a solder deposit is arranged. The general-purpose converter fuse simultaneously assumes the function of an LVHBC fuse and of a semiconductor protection fuse.

REFERENCES:
patent: 3835431 (1974-09-01), Rosen et al.
patent: 4118684 (1978-10-01), Mollenhoff
patent: 4357588 (1982-11-01), Leach et al.
Siemens Catalog, Order No. A19100-J21-A337-V1, Sicher ist Sicher: NH-Sicheruungen von Siemens (Sure is Sure: NH-Fuses of Siemens).

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