Inductive method for AC and DC testing, creation and testing of installations

Author

Dolgosheev, P.I. ; Sytnikov, V.E. ; Radchenko, I.P. ; Vahtinski, N.A.

Author_Institution

All-Union Res. & Dev. Inst. of Cable. Ind., Moscow, USSR

Volume

27

Issue

2

fYear

1991

fDate

3/1/1991 12:00:00 AM

Firstpage

2499

Lastpage

2502

Abstract

High values of critical current multiwire superconducting cables make it impossible to use the galvanic current input method for sample testing. This necessitates the development of an inductive method. The main advantage of this method is the relatively low cost of generating very high currents. Series of toroidal and solenoidal transformers has been developed and tested. The transformers with a steel core have been used for DC tests, and those without the steel core have been used for DC and AC tests. Currents of up to 126.3 kA (quench current DC) and 50 kA AC have been obtained. Joint resistance has been less than 10^-10 Ω. The possibility of using the inductive method for the critical, quench, and recovery currents is discussed, and results obtained are presented

Keywords

cable testing; critical currents; solenoids; superconducting cables; 126.3 kA; 50 kA; AC tests; DC tests; critical current multiwire superconducting cables; galvanic current input method; inductive method; quench current; sample testing; solenoidal transformers; steel core; toroidal transformers; Costs; Equations; Galvanizing; Magnetic flux; Power cables; Steel; Superconducting cables; Superconducting magnets; Testing; Transformer cores;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.133726

Filename

133726