AN UPGRADED SC TRANSFORMER TO TEST RUTHERFORD CABLES AT SELF-FIELD
2004
The secondary winding design of the original transformer [1], which was used to study Nb3Sn cable splicing techniques, was modified to accommodate a cable sample of about three pitch lengths as opposed to about half a pitch in the previous design. The basic objective of this new transformer was to measure the quench current of SC cables at self-field under various cooling conditions. Possible additional objectives by means of a faster DAQ system [2] included quench localization and spike detection. To increase the maximum capability of the secondary current, a primary circuit with larger number of turns was designed and fabricated. This improved the maximum secondary current from 22.5 kA to nearly 28 kA.
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