JPS5495196A - Protective circuit of superconductive coil - Google Patents

Protective circuit of superconductive coil

Info

Publication number
JPS5495196A
JPS5495196A JP191178A JP191178A JPS5495196A JP S5495196 A JPS5495196 A JP S5495196A JP 191178 A JP191178 A JP 191178A JP 191178 A JP191178 A JP 191178A JP S5495196 A JPS5495196 A JP S5495196A
Authority
JP
Japan
Prior art keywords
coil
voltage
integrator
generated
breaker
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
JP191178A
Other languages
Japanese (ja)
Inventor
Takashi Toyoda
Yoshinaga Nakayama
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 JP191178A priority Critical patent/JPS5495196A/en
Publication of JPS5495196A publication Critical patent/JPS5495196A/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)
  • Protection Of Static Devices (AREA)

Abstract

PURPOSE:To ensure the operation of a current breaker to improve reliability by detecting the abnormal voltage, which is generated in a super-conductive coil, through a search coil and an integrator, which are provided near this coil, and breaking the current to the superconductive coil when the abnormal voltage is generated. CONSTITUTION:Superconductive coil 3 is connected to power source 1 through current breaker 2, and protective resistance 4 is inserted between both terminals 5 and 6 of coil 3. Next, integrator 17 is connected to terminals 5 and 6 through search coil 12 and voltage divider 13, and the output terminal of integrator 17 is connected to input terminals 10 and 11 of current breaking signals provided in breaker 2. In this constitution, search coil 12 is arranged closely to superconductive coil 3, and the position of movable tap 16 of voltage divider 13 is so adjusted that the induced voltage may be cancelled in case of a normal voltage. However, since the induced voltage is generated in voltage divider 13 when an abnormal conductive part is generated in superconductive coil 3 and the abnormal voltage appears, this induced voltage is integrated by integrator 17; and when the result exceeds a fixed value, breaker 2 is operated.
JP191178A 1978-01-13 1978-01-13 Protective circuit of superconductive coil Pending JPS5495196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP191178A JPS5495196A (en) 1978-01-13 1978-01-13 Protective circuit of superconductive coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP191178A JPS5495196A (en) 1978-01-13 1978-01-13 Protective circuit of superconductive coil

Publications (1)

Publication Number Publication Date
JPS5495196A true JPS5495196A (en) 1979-07-27

Family

ID=11514754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP191178A Pending JPS5495196A (en) 1978-01-13 1978-01-13 Protective circuit of superconductive coil

Country Status (1)

Country Link
JP (1) JPS5495196A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994805A (en) * 1982-11-24 1984-05-31 Toshiba Corp Superconductive magnet
JPS59152604A (en) * 1983-02-21 1984-08-31 Toshiba Corp Quenching detection system of superconductive coil
US5502613A (en) * 1992-07-15 1996-03-26 Hitachi, Ltd. Superconducting magnet abnormality detection and protection apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994805A (en) * 1982-11-24 1984-05-31 Toshiba Corp Superconductive magnet
JPH0434802B2 (en) * 1982-11-24 1992-06-09 Tokyo Shibaura Electric Co
JPS59152604A (en) * 1983-02-21 1984-08-31 Toshiba Corp Quenching detection system of superconductive coil
US5502613A (en) * 1992-07-15 1996-03-26 Hitachi, Ltd. Superconducting magnet abnormality detection and protection apparatus

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