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 stateInfo
- 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- Withdrawn
Links
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
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.
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) |
-
1974
- 1974-07-29 DE DE19742436497 patent/DE2436497C2/en not_active Expired
-
1975
- 1975-07-17 JP JP50087805A patent/JPS5135045A/ja active Pending
- 1975-07-24 FR FR7523160A patent/FR2280993A1/en not_active Withdrawn
- 1975-07-28 SE SE7508554A patent/SE7508554L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE2436497B1 (en) | 1976-02-12 |
SE7508554L (en) | 1976-01-30 |
DE2436497C2 (en) | 1976-10-07 |
JPS5135045A (en) | 1976-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |