JPS6438940A - Current-limiting fuse - Google Patents

Current-limiting fuse

Info

Publication number
JPS6438940A
JPS6438940A JP19569287A JP19569287A JPS6438940A JP S6438940 A JPS6438940 A JP S6438940A JP 19569287 A JP19569287 A JP 19569287A JP 19569287 A JP19569287 A JP 19569287A JP S6438940 A JPS6438940 A JP S6438940A
Authority
JP
Japan
Prior art keywords
soluble matter
current
side plates
conduction
limiting fuse
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.)
Pending
Application number
JP19569287A
Other languages
Japanese (ja)
Inventor
Sadajiro Mori
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP19569287A priority Critical patent/JPS6438940A/en
Publication of JPS6438940A publication Critical patent/JPS6438940A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H01H85/06—Fusible members characterised by the fusible material

Landscapes

  • Fuses (AREA)

Abstract

PURPOSE:To prevent a soluble matter from being expanded/contracted during repetitive conducting operations of overcurrents, by using a superconductive material as the soluble matter in a current-limiting fuse so that conduction is performed without heat generation. CONSTITUTION:Both ends of an outer cylinder 1 made of an insulating material of porcelain or the like are enclosed by circular side plates 2, 3. Terminals 4, 5 are protruded at nearly central parts of one-sided planes of both the side plates 2, 3. This outer cylinder 1, and both the side plates 2, 3 are used to form an extinction chamber 6. A soluble matter 7 is made of a superconductive material and disposed inside the extinction chamber 6, and both ends of the soluble matter 7 are electrically connected to the terminals 4, 5 respectively with both side plates 2, 3 in between. The extinction chamber 6 is filled with extinction sand 8. Because of no heat generation during conduction of a load current, the soluble matter 7 can be prevented from being expanded/contracted during repetitive conducting operations of overload currents, so that the soluble matter 7 is not worn/broken. Since conduction of a large current is rendered possible by a small soluble matter, a current-limiting fuse can be made small.
JP19569287A 1987-08-04 1987-08-04 Current-limiting fuse Pending JPS6438940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19569287A JPS6438940A (en) 1987-08-04 1987-08-04 Current-limiting fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19569287A JPS6438940A (en) 1987-08-04 1987-08-04 Current-limiting fuse

Publications (1)

Publication Number Publication Date
JPS6438940A true JPS6438940A (en) 1989-02-09

Family

ID=16345408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19569287A Pending JPS6438940A (en) 1987-08-04 1987-08-04 Current-limiting fuse

Country Status (1)

Country Link
JP (1) JPS6438940A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030076770A (en) * 2002-03-21 2003-09-29 한국전력공사 A method of production current limiting fuse device using superconducting material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030076770A (en) * 2002-03-21 2003-09-29 한국전력공사 A method of production current limiting fuse device using superconducting material

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