JPS6477424A - Overcurrent protector - Google Patents

Overcurrent protector

Info

Publication number
JPS6477424A
JPS6477424A JP62235325A JP23532587A JPS6477424A JP S6477424 A JPS6477424 A JP S6477424A JP 62235325 A JP62235325 A JP 62235325A JP 23532587 A JP23532587 A JP 23532587A JP S6477424 A JPS6477424 A JP S6477424A
Authority
JP
Japan
Prior art keywords
overcurrent
lead
magnetic field
solenoid coil
superconducting coil
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
JP62235325A
Other languages
Japanese (ja)
Inventor
Katsuyoshi Toyoda
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 JP62235325A priority Critical patent/JPS6477424A/en
Publication of JPS6477424A publication Critical patent/JPS6477424A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/023—Current limitation using superconducting elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To always retain a superconducting coil in a normal state by equipping an apparatus with a solenoid coil generating a magnetic field in the direction of the largest change of a magnetic reluctance in a lead. CONSTITUTION:An overcurrent protecting lead 6 is composed of an La-Sr-Cu-O oxide superconductor and arrows shown in the overcurrent protecting lead 6 indicate C axes out of crystal axes. A solenoid coil 7 is arranged so as to generate the direction of a magnetic field in the direction of the C axis of the overcurrent protecting lead 6. In this case, if overcurrent is going to flow from a power source 2, the solenoid coil 7 increases the magnetic field and the electric resistance of the overcurrent protecting lead 6 so that an electric current flowing through the superconducting coil 1 decreases. After all, overcurrent does not flow so as to cause no quenching of the superconducting coil 1. Therefore, circuits operate in a self-regulative manner and sure protection without malfunctioning is also possible.
JP62235325A 1987-09-17 1987-09-17 Overcurrent protector Pending JPS6477424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62235325A JPS6477424A (en) 1987-09-17 1987-09-17 Overcurrent protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235325A JPS6477424A (en) 1987-09-17 1987-09-17 Overcurrent protector

Publications (1)

Publication Number Publication Date
JPS6477424A true JPS6477424A (en) 1989-03-23

Family

ID=16984434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235325A Pending JPS6477424A (en) 1987-09-17 1987-09-17 Overcurrent protector

Country Status (1)

Country Link
JP (1) JPS6477424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016535574A (en) * 2013-07-30 2016-11-10 江▲蘇▼多▲維▼科技有限公司Ｍｕｌｔｉｄｉｍｅｎｓｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． Magnetoresistive current limiter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831447A (en) * 1971-08-27 1973-04-25
JPS6419643A (en) * 1987-07-15 1989-01-23 Hitachi Ltd Current zero miss eliminating device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4831447A (en) * 1971-08-27 1973-04-25
JPS6419643A (en) * 1987-07-15 1989-01-23 Hitachi Ltd Current zero miss eliminating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016535574A (en) * 2013-07-30 2016-11-10 江▲蘇▼多▲維▼科技有限公司Ｍｕｌｔｉｄｉｍｅｎｓｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． Magnetoresistive current limiter

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