Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
  • H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
  • H01B12/08—Stranded or braided wires
• • 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

Definitions

• the invention relates to a conductor arrangement for a supralei ⁇ ting device.
• High-current systems in particular busbar systems for low voltage, are generally implemented with minimal reactances in order to keep the voltage drops related to a unit length small. For reasons of electromagnetic compatibility (EMC), the magnetic external field m around the high-current system is also minimized.
• EMC electromagnetic compatibility
• Such high-current systems are usually designed as three-phase systems.
• Metallic superconductors suitable for alternating current in the form of round wires or round wire bundles with bundle diameters of up to 1.5 mm are available for the introduction of superconducting technology for such high-current systems.
• the progressive development of ceramic superconductors also shows a tendency towards round wires of comparable diameters.
• a high-current system with round wires requires a large number of wire bundles connected in parallel per phase.
• the permissible operating current for a 1.5 mm bundle is, for example, about 250 A.
• additional measures are required.
• the invention is based on the object of specifying a simple conductor arrangement for superconductors which meets the requirements mentioned above.
• FIG. 3 the conductor arrangement in accordance with FIG.
• the new conductor arrangement 1 is designed as a kind of fabric.
• the fabric can be used as a prefabricated product for the production of a superconducting high-current system.
• 3 shows the conductor arrangement 1, in which the weft threads S consist wholly or partly of superconducting round wires or round wire bundles.
• the warp threads K of the fabric and the weft threads which may not be replaced by wires are made of insulating material (see also FIG. 2).
• ERSATZBU ⁇ (RULE 26) 1 and 2 show examples of different conductor arrangements 1 in cross section.
• the round wires or round wire bundles are assembled in the phase sequence U, V, W, N, U, V, W, N ... (4-wire system) or, for example, U, V, W , U, V, W ... (3-wire system) connected, so that a large number of three-phase systems connected in parallel are created.
• the fabric structure of the conductor arrangement 1 offers a liquid coolant and insulating agent sufficient wetting options for the superconducting round wires or round wire bundles.
• Helium, hydrogen or nitrogen are preferably used as cooling and insulating agents.
• phase conductors results in a uniform current distribution on the parallel branches, a minimal overall reactance and minimal magnetic vibratory forces on the superconductors.
• d is the wire bundle diameter and t is the pitch of a parallel group.
• the division width can, for example, be in the range of 10 mm.
• the diameter of the wire or round wire bundle used, the number of parallel branches required and the necessary insulation distances between the respective phase conductors determine the overall fabric width.
• the conductor arrangement 1 rolled up in the direction of the warp or weft threads K or S can then be introduced into a suitable insulating tube (warm insulating tube), which is a cryostat tube
• 4 and 5 each show an embodiment in cross section.
• 4 shows a round tube RR in which the conductor arrangement 1 is contained rolled up.
• 5 shows a hollow profile H with a rectangular cross section, in which the conductor arrangement is inserted folded.
• a layer serving as a spacer for example another fabric G, can also be inserted between the individual layers of the conductor arrangement 1.
• the superconducting round wires can be preprocessed, so that a fabric which is easy to process is available as a conductor arrangement.
• the conductor arrangement is preferably suitable as a prefabricated product for low and medium-voltage three-phase high-current systems and for single-phase and multi-phase current limiters.

Landscapes

• Superconductors And Manufacturing Methods Therefor (AREA)
• Windings For Motors And Generators (AREA)

Applications Claiming Priority (3)

Publications (1)

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Family Cites Families (2)

• 1996
  • 1996-02-06 DE DE29602026U patent/DE29602026U1/de not_active Expired - Lifetime
• 1997
  • 1997-01-24 EP EP97915263A patent/EP0879469A1/de not_active Withdrawn
  • 1997-01-24 JP JP9528034A patent/JP2000504870A/ja active Pending
  • 1997-01-24 WO PCT/DE1997/000125 patent/WO1997029491A1/de not_active Application Discontinuation

Non-Patent Citations (1)

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