GB1230579A - - Google Patents

Info

Publication number
GB1230579A
GB1230579A GB3388367A GB1230579DA GB1230579A GB 1230579 A GB1230579 A GB 1230579A GB 3388367 A GB3388367 A GB 3388367A GB 1230579D A GB1230579D A GB 1230579DA GB 1230579 A GB1230579 A GB 1230579A
Authority
GB
United Kingdom
Prior art keywords
windings
sections
switch
protective
short circuit
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.)
Expired
Application number
GB3388367A
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 filed Critical
Publication of GB1230579A publication Critical patent/GB1230579A/en
Expired 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F36/00—Transformers with superconductive windings or with windings operating at cryogenic temperature
    • 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)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Abstract

1,230,579. Transformers. CENTRAL ELECTRICITY GENERATING BOARD. 2 Aug., 1968 [24 July, 1967], No. 33883/67. Heading H1T. [Also in Division H2] A superconducting transformer has a protective winding 11 (Fig. 1) of normal conductive material (copper) in a parallel circuit with and having the same number of turns as each of its superconductive windings 10, means being provided to divert the current from the superconducting winding to the normal winding on the occurrence of a short circuit fault. These diverting means comprise at least a resistor 13 or 12 in series with one or each of the windings 11, 10 having in series (14) or parallel (15) therewith a (vacuum) switch 14, 15 which opens .(14) or closes (15) on the occurrence of short circuit fault conditions. Switch 15 is closed quickly and switch 14 is opened within a half cycle. When the short circuit conditions are past the switches are returned to their original settings. The windings may be arranged in interleaved sections the sections 54, 57 (Fig. 7) which protect the primary sections 50, 51 being arranged between and adjacent the latter while the secondary sections 52, 53 are arranged in the middle with their protective sections 55, 56 on each side. The superconducting windings are formed of niobium plated on copper. The protective windings may be formed of a copper conductor having about 30 transposed strips each of a thickness equal to about <SP>1</SP>/ 30 of the skin depth and this conductor may have a coating of niobium to reduce eddy current losses.
GB3388367A 1967-07-24 1967-07-24 Expired GB1230579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3388367 1967-07-24

Publications (1)

Publication Number Publication Date
GB1230579A true GB1230579A (en) 1971-05-05

Family

ID=10358690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3388367A Expired GB1230579A (en) 1967-07-24 1967-07-24

Country Status (1)

Country Link
GB (1) GB1230579A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336561A (en) * 1980-01-28 1982-06-22 Westinghouse Electric Corp. Superconducting transformer
US4470090A (en) * 1979-05-07 1984-09-04 Westinghouse Electric Corp. Superconducting induction apparatus
DE3405310A1 (en) * 1984-02-15 1985-08-22 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau SUPER-CONDUCTING MAGNETIC SYSTEM FOR 13K OPERATION
EP0218867A1 (en) * 1985-09-11 1987-04-22 Bruker Analytische Messtechnik GmbH Magnet coil
EP0288729A1 (en) * 1987-03-30 1988-11-02 Siemens Aktiengesellschaft Quench extending device for a supraconducting magnet
US5387890A (en) * 1992-11-05 1995-02-07 Gec Alsthom T & D Sa Superconductive coil assembly particularly for a current limiter, and a current limiter including such a coil assembly
EP0676777A1 (en) * 1994-04-11 1995-10-11 Siemens Aktiengesellschaft Locomotive transformer and winding device therefor
DE19809314A1 (en) * 1998-03-05 1999-09-09 Abb Research Ltd Arrangement and method for current limitation with a superconducting transformer arrangement in an electrical circuit
US6043731A (en) * 1995-03-24 2000-03-28 Oxford Instruments Plc Current limiting device
EP1050892A1 (en) * 1999-05-04 2000-11-08 Abb Research Ltd. Current limiting device for superconducting transformer
US6236545B1 (en) 1996-06-25 2001-05-22 Oxford Instruments Plc Current limiting device utilizing a superconductor
US6239957B1 (en) 1996-10-10 2001-05-29 Oxford Instruments (Uk) Ltd. Current limiting device

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470090A (en) * 1979-05-07 1984-09-04 Westinghouse Electric Corp. Superconducting induction apparatus
US4336561A (en) * 1980-01-28 1982-06-22 Westinghouse Electric Corp. Superconducting transformer
DE3405310A1 (en) * 1984-02-15 1985-08-22 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau SUPER-CONDUCTING MAGNETIC SYSTEM FOR 13K OPERATION
US4688132A (en) * 1984-02-15 1987-08-18 Bbc Aktiengesellschaft Brown, Boveri & Cie Superconducting magnet system for operation at 13k
EP0218867A1 (en) * 1985-09-11 1987-04-22 Bruker Analytische Messtechnik GmbH Magnet coil
US4727346A (en) * 1985-09-11 1988-02-23 Bruker Analytische Mebtechnik Gmbh Superconductor and normally conductive spaced parallel connected windings
EP0288729A1 (en) * 1987-03-30 1988-11-02 Siemens Aktiengesellschaft Quench extending device for a supraconducting magnet
US4812796A (en) * 1987-03-30 1989-03-14 Siemens Aktiengesellschaft Quench propagation device for a superconducting magnet
US5387890A (en) * 1992-11-05 1995-02-07 Gec Alsthom T & D Sa Superconductive coil assembly particularly for a current limiter, and a current limiter including such a coil assembly
EP0676777A1 (en) * 1994-04-11 1995-10-11 Siemens Aktiengesellschaft Locomotive transformer and winding device therefor
US6043731A (en) * 1995-03-24 2000-03-28 Oxford Instruments Plc Current limiting device
US6236545B1 (en) 1996-06-25 2001-05-22 Oxford Instruments Plc Current limiting device utilizing a superconductor
US6239957B1 (en) 1996-10-10 2001-05-29 Oxford Instruments (Uk) Ltd. Current limiting device
DE19809314A1 (en) * 1998-03-05 1999-09-09 Abb Research Ltd Arrangement and method for current limitation with a superconducting transformer arrangement in an electrical circuit
EP1050892A1 (en) * 1999-05-04 2000-11-08 Abb Research Ltd. Current limiting device for superconducting transformer
US6411479B1 (en) 1999-05-04 2002-06-25 Abb Research Ltd. Arrangement for current limiting using a superconductor transformer

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees