GB768186A - Improvements in fuse cut-outs - Google Patents

Improvements in fuse cut-outs

Info

Publication number
GB768186A
GB768186A GB559555A GB559555A GB768186A GB 768186 A GB768186 A GB 768186A GB 559555 A GB559555 A GB 559555A GB 559555 A GB559555 A GB 559555A GB 768186 A GB768186 A GB 768186A
Authority
GB
United Kingdom
Prior art keywords
fuse
link
extension
fuse tube
trunnions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB559555A
Inventor
Ralph Paul Sant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
McGraw Electric Co
Original Assignee
McGraw Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by McGraw Electric Co filed Critical McGraw Electric Co
Priority to GB559555A priority Critical patent/GB768186A/en
Publication of GB768186A publication Critical patent/GB768186A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/12—Adaptation for built-in fuse
    • H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch
    • H01H31/127—Drop-out fuses

Landscapes

  • Fuses (AREA)

Abstract

768,186. Electrically-released switches. air-break switches. McGRAW ELECTRIC CO. Feb. 24, 1955, No. 5595/55. Class 38(5) A fuse cut-out has an insulating support 1 for upper and lower terminals 4, 5 and an expulsion fuse tube 35 pivoted on the lower terminal which comprises a, hoodlike member 9 with hook-like bearings 12 and an outwardly flared guide slot 15 for receiving a lateral extension 45 of a lower support member 36 of the fuse tube 35. The extension 45 is pivoted to a link 56 having trunnions 65 supported in the bearings 12 and a contact member 74 resiliently engaged by a fixed contact member 29, relative rotation between the extension 45 and the link 56 being normally prevented by the fuse 69. The upper end of the fuse tube 35 may have a transverse contact rod 95 which co-operates with a contact spring 112. This spring is substantially U-shaped with curved back -ends and provides a strong downward bias on the rod 95 to cause relative rotation between the extension 45 and the link 56 when the fuse is ruptured followed by the downward swinging of the link 56 and fuse tube assembly about the trunnions 65 to the open-circuit position.
GB559555A 1955-02-24 1955-02-24 Improvements in fuse cut-outs Expired GB768186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB559555A GB768186A (en) 1955-02-24 1955-02-24 Improvements in fuse cut-outs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB559555A GB768186A (en) 1955-02-24 1955-02-24 Improvements in fuse cut-outs

Publications (1)

Publication Number Publication Date
GB768186A true GB768186A (en) 1957-02-13

Family

ID=9799062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB559555A Expired GB768186A (en) 1955-02-24 1955-02-24 Improvements in fuse cut-outs

Country Status (1)

Country Link
GB (1) GB768186A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114242538A (en) * 2021-12-10 2022-03-25 国网河北省电力有限公司元氏县供电分公司 High-adaptability drop-out fuse

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114242538A (en) * 2021-12-10 2022-03-25 国网河北省电力有限公司元氏县供电分公司 High-adaptability drop-out fuse
CN114242538B (en) * 2021-12-10 2024-02-27 国网河北省电力有限公司元氏县供电分公司 High-adaptability drop-out fuse

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