FR2280993A1 - Current limiter with superconductive coil - uses coil natural magnetic field for change-over from superconductive to normally conductive state - Google Patents

Current limiter with superconductive coil - uses coil natural magnetic field for change-over from superconductive to normally conductive state

Info

Publication number
FR2280993A1
FR2280993A1 FR7523160A FR7523160A FR2280993A1 FR 2280993 A1 FR2280993 A1 FR 2280993A1 FR 7523160 A FR7523160 A FR 7523160A FR 7523160 A FR7523160 A FR 7523160A FR 2280993 A1 FR2280993 A1 FR 2280993A1
Authority
FR
France
Prior art keywords
superconductive
coil
magnetic field
conductive state
change
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.)
Withdrawn
Application number
FR7523160A
Other languages
French (fr)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2280993A1 publication Critical patent/FR2280993A1/en
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/003—Methods and means for discharging superconductive storage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F2006/001—Constructive details of inductive current limiters
    • 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)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Superconductor Devices And Manufacturing Methods Thereof (AREA)

Abstract

The superconductive coil of the current limiting device can be switched by its natural magnetic field from the superconductive to the normally conductive state. The coil is surrounded by a magnetic screens of superconductive material which forcibly extend the magnetic lines path generated by the coil current. The partial cancelling of the screening effect results in the increase of the natural magnetic field, due to shortening of the path of the force lines, so that the coil is switched from the superconductive into the formally conductive state. The screens (4) can be at least partly subjected to a current surge and they are connected to a capacitor via an ammeter.
FR7523160A 1974-07-29 1975-07-24 Current limiter with superconductive coil - uses coil natural magnetic field for change-over from superconductive to normally conductive state Withdrawn FR2280993A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742436497 DE2436497C2 (en) 1974-07-29 1974-07-29 CURRENT LIMITING DEVICE WITH A SUPRAL CONDUCTING COIL

Publications (1)

Publication Number Publication Date
FR2280993A1 true FR2280993A1 (en) 1976-02-27

Family

ID=5921850

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7523160A Withdrawn FR2280993A1 (en) 1974-07-29 1975-07-24 Current limiter with superconductive coil - uses coil natural magnetic field for change-over from superconductive to normally conductive state

Country Status (4)

Country Link
JP (1) JPS5135045A (en)
DE (1) DE2436497C2 (en)
FR (1) FR2280993A1 (en)
SE (1) SE7508554L (en)

Also Published As

Publication number Publication date
JPS5135045A (en) 1976-03-25
DE2436497B1 (en) 1976-02-12
DE2436497C2 (en) 1976-10-07
SE7508554L (en) 1976-01-30

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Legal Events

Date Code Title Description
ST Notification of lapse