The reduction of the critical current in Nb sub 3 Sn cables under transverse forces

Conference · Wed Jan 01 04:00:00 EST 1992 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5364403

ten Kate, H H.J.; Weijers, H; Wessel, S; Boschman, H; van de Klundert, L J.M. ^[1]

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1. Univ. of Twente, Applied Superconductivity Centre, P.O. Box 217, 7500 AE Enschede (NL)

This paper reports that the degradation of the critical current of impregnated Rutherford type of Nb{sub 3}Sn cables has been investigated as function of the transverse force applied to the cable surface. Voltage-current characteristics were measured between 9 and 11 tesla by which the cable is supplied with the full transport current while a section on the broad side of the cable with a length of 40 mm is under pressure. A few samples are investigated as a function of the transverse force strands in the cable. It appears that the degradation of the strands is not uniform, for example, at 200 MPa some strands show 1-% while other have 40% critical current degradation also depending on the critical current criterion used. The global degradation of the cable is 12 {plus minus} 2% at 200 MPa though it is possible that a single bad strand in a cable limits the cable to below this value due to premature quenching of that strand.

• OSTI ID: 5364403
• Report Number(s): CONF-910662--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 28:1
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240302 -- Power Transmission Lines & Cables-- Superconducting Cables-- (1990-)
36 MATERIALS SCIENCE
360107 -- Metals & Alloys-- Superconducting Properties-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CABLES
CONDUCTOR DEVICES
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CABLES
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ENERGY
EQUIPMENT
KINETIC ENERGY
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
PHYSICAL PROPERTIES
QUENCHING
STABILITY
SUPERCONDUCTING CABLES
SUPERCONDUCTING COILS
SUPERCONDUCTIVITY
TIN ALLOYS
TRANSVERSE ENERGY