Conceptual and experimental studies of electrical joints for NET-ITER coils
The interpancake joints of superconducting cables for the central solenoid of NET-ITER are special components with contradictory requirements regarding electrical, mechanical and thermal properties. Particular attention must be paid to the stability of the conductor in the joint during a plasma disruption, because of the large magnetic field variation at this location (greater than 2 T within about 0.1 s). Two NET-CEA contracts were launched in order to develop and test subsize Nb(3)Sn joints under representative conditions. The first set of joints was dedicated to basic parametric studies from which general properties of different kinds of joints could be drawn. Two main designs were considered: the so-called butt-joint and the overlap (subdivided) joint. Three different samples of each kind were tested under bath cooled conditions for checking dc resistance, ac losses and behaviour under varying magnetic field.
Bibliographic Reference: Paper presented: 17th Symposium on Fusion Technology, Roma (IT), September 14-18, 1992
Availability: Available from (1) as Paper EN 37055 ORA
Record Number: 199211510 / Last updated on: 1994-11-29
Original language: en
Available languages: en