Superconducting current feeder system with associated test results for SST-1 Tokamak

Author

Tanna, V.L. ; Sarkar, B. ; Gupta, N.C. ; Amardas, A. ; Misra, R. ; Dhard, C.P. ; Jadhav, P.S. ; Rewatkar, P. ; Sonara, D. ; Saxena, Y.C.

Author_Institution

Plasma Res., Gandhinagar, India

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1711

Lastpage

1714

Abstract

The current feeder system (CFS) consists of 20 numbers 10 kA current leads assembled inside a specially designed cryostat, superconducting bus bars assembled in a vacuum duct with bends and the joint box interface in cryogenic environment at 4.5 K. Support structure between room temperature and 4.5 K surfaces with an intercept at 80 K has been designed specially to minimize the conduction heat load as well as to take care of the electromagnetic forces. The hydraulics design of the CFS has been optimized in order to be able to interface with the liquid helium refrigerator/liquefier. A sophisticated instrumentation and control system has been designed and developed as well as tested. The paper describe the design concepts, mechanical and hydraulic analysis, instrumentation & control system as well as some test results of the current feeder system.

Keywords

Tokamak devices; busbars; cryostats; superconducting magnets; 10 kA; 4.5 K; 80 K; CFS hydraulics design; SST-1 Tokamak; conduction heat load minimization; control system; cryogenic environment; cryogenics; cryostat; current leads; electromagnetic forces; hydraulic analysis; instrumentation; joint box interface; liquid helium liquefier; liquid helium refrigerator; magnets; mechanical analysis; superconducting bus bars; superconducting current feeder system; vacuum duct; Assembly systems; Bars; Control systems; Cryogenics; Ducts; Instruments; System testing; Temperature; Tokamaks; Vacuum systems; Bus bars; cryogenics; current supplies; liquid helium; magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.831050

Filename

1325135