Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1977-05-06
1980-02-19
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337280, H01H 8540
Patent
active
041896955
ABSTRACT:
The present invention is a current limiting fuse device for protecting a power semiconductor element for use in a large current device such as DC-AC or AC-DC converter from overcurrent. The current limiting fuse device includes an outer casing filled with a cooling and insulating oil, a cylindrical body immersed in the cooling and insulating oil having sealed therein a hollow fuse element with an arc suppression agent, and a pair of conductive terminal holding fittings each conductively coupled to a respective end of the hollow fuse element, secured to the respective ends of the cylindrical body at one end so as to allow the cooling and insulating oil to pass through an inner bore in the hollow fuse element, and projected from said outer casing at the other end.
REFERENCES:
patent: 3453579 (1969-07-01), Cinquin
patent: 3693128 (1972-09-01), Jacobs, Jr.
patent: 3710295 (1973-01-01), Staub et al.
patent: 3793603 (1974-02-01), Fontaine
patent: 4041434 (1977-08-01), Jacobs, Jr. et al.
patent: 4058785 (1977-11-01), Frind et al.
Broome Harold
Hinode Electric Machine Co., Ltd.
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