Fuse holder-under oil drywell loadbreak device

Details Fuse holder-under oil drywell loadbreak device Fuse holder-under oil drywell loadbreak device

1980-03-28

1982-03-23

Beha, Jr., William H.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337211, 337273, H01H 8538

Patent

active

043215769

ABSTRACT:
A drywell fuse holder and a loadbreak fuse assembly, the holder including an arc-extinguishing sleeve located adjacent to the inner contact sleeve, the loadbreak fuse assembly including a non-expulsion fuse having electrical interface assemblies at each end spaced apart a distance less than the distance the inlet to the contact sleeves in the fuse holder, the interface assemblies including a spacer ring to center the fuse assembly in the holder and protect the garter spring contact and an arcing washer to transfer the arc from the garter spring; and an arc-extinguishing follower on the fuse assembly which is pulled through the arc-extinguishing sleeve to extinguish the arc.

REFERENCES:
patent: 3628092 (1971-12-01), Keto
patent: 3699490 (1972-10-01), Macemon
patent: 4059816 (1977-11-01), Bonecutter et al.
patent: 4081778 (1978-03-01), Sack et al.

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