Protected electrical inductive apparatus

Details Protected electrical inductive apparatus Protected electrical inductive apparatus

1979-12-17

1981-06-23

Beha, Jr., William H.

Electricity: electrothermally or thermally actuated switches

With separate distinct diverse art-type switching device

Fusible element device with other

337202, 337203, 361 41, H02H 704, H01H 8516

Patent

active

042753724

ABSTRACT:
Protected liquid-filled electrical inductive apparatus having a dry well fuse assembly which includes a dry well fuse holder sealingly disposed through an opening in the associated metallic casing, separate from the electrical bushings, and a removable fuse portion. Ionization of the air within the fuse holder is prevented by a resilient plug mounted on the removable fuse portion which, when the fuse portion is assembled within the dry well fuse holder, is immediately adjacent to the electrical terminal which is closest to the grounded casing. The resilient plug member provides an air seal adjacent to the terminal without providing a pressure seal within the receptacle.

REFERENCES:
patent: 3378627 (1968-04-01), Aldighieri
patent: 3471816 (1969-10-01), Giegerich
patent: 3480898 (1969-11-01), Giegerich
patent: 3588607 (1971-06-01), Ristuccia et al.
patent: 3628092 (1971-12-01), Keto
patent: 3662309 (1972-05-01), Harmon
patent: 3699490 (1972-10-01), Macemon
patent: 3732517 (1973-05-01), Keto et al.
patent: 3792215 (1974-02-01), Keto
patent: 3829810 (1974-08-01), Giegerich
patent: 3892461 (1975-07-01), Keto
patent: 4010437 (1977-03-01), Macemon
patent: 4161012 (1979-07-01), Cunningham

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