JPS5577111A - Superconductive magnet device - Google Patents

Superconductive magnet device

Info

Publication number
JPS5577111A
JPS5577111A JP15068978A JP15068978A JPS5577111A JP S5577111 A JPS5577111 A JP S5577111A JP 15068978 A JP15068978 A JP 15068978A JP 15068978 A JP15068978 A JP 15068978A JP S5577111 A JPS5577111 A JP S5577111A
Authority
JP
Japan
Prior art keywords
coil
diodes
optical fiber
luminous
power source
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
JP15068978A
Other languages
Japanese (ja)
Inventor
Daisuke Ito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15068978A priority Critical patent/JPS5577111A/en
Publication of JPS5577111A publication Critical patent/JPS5577111A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/001—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for superconducting apparatus, e.g. coils, lines, machines
    • 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

  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Superconductive Dynamoelectric Machines (AREA)

Abstract

PURPOSE:To recover energy of coil rapidly when quenching phenomenon takes place in coil by making protecting device operate through optical fiber and light receiving element in combination with luminous diode housed together with superconductive coil in low-temperature container. CONSTITUTION:Superconductive coil 2 is housed in low-temperature container 1 kept cool by liquid helium and pumping of coil flux is made by connecting terminals with outer power source 3. Next in a row with coil 2 is connected helipot resistance 4 and between this and middle-point tap of coil 2 is provided a bridge circuit composed of reversely-connected luminous diodes 9a and 9b linked in series with resistance 8. And then optical fiber 10 is arranged in opposition to one end of luminous parts of these diodes 9a and 9b. The other end of optical fiber 10 is led outside of container 1 and faced with phototransistor 11 connected with protecting device. When the quench of coil 2 is detected by diodes 9a and 9b thus constituted, power source 3 is braced up and energy of coil 2 is recovered rapidly.
JP15068978A 1978-12-06 1978-12-06 Superconductive magnet device Pending JPS5577111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15068978A JPS5577111A (en) 1978-12-06 1978-12-06 Superconductive magnet device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15068978A JPS5577111A (en) 1978-12-06 1978-12-06 Superconductive magnet device

Publications (1)

Publication Number Publication Date
JPS5577111A true JPS5577111A (en) 1980-06-10

Family

ID=15502297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15068978A Pending JPS5577111A (en) 1978-12-06 1978-12-06 Superconductive magnet device

Country Status (1)

Country Link
JP (1) JPS5577111A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916312A (en) * 1983-03-07 1984-01-27 Hitachi Ltd Detector for quenching of superconducting coil
US4906930A (en) * 1987-02-27 1990-03-06 Hitachi, Ltd. Magnetometer using a Josephson device and superconducting phototransistor
EP0758811A2 (en) * 1995-08-11 1997-02-19 General Electric Company Electrical circuit for protecting a superconducting magnet during a quench
WO2000076048A1 (en) * 1999-06-04 2000-12-14 Siemens Aktiengesellschaft Current limiting device comprising a high temperature supraconductor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916312A (en) * 1983-03-07 1984-01-27 Hitachi Ltd Detector for quenching of superconducting coil
US4906930A (en) * 1987-02-27 1990-03-06 Hitachi, Ltd. Magnetometer using a Josephson device and superconducting phototransistor
EP0758811A2 (en) * 1995-08-11 1997-02-19 General Electric Company Electrical circuit for protecting a superconducting magnet during a quench
EP0758811A3 (en) * 1995-08-11 1998-03-18 General Electric Company Electrical circuit for protecting a superconducting magnet during a quench
WO2000076048A1 (en) * 1999-06-04 2000-12-14 Siemens Aktiengesellschaft Current limiting device comprising a high temperature supraconductor

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