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Tests of disk type magnetic flux pump with the ability of high voltage output

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7 Author(s)

Using a superconducting magnetic flux pump, thick power leads for a superconducting magnet could be replaced with thin string leads to excite the excitation magnet of the superconducting flux pump. We have developed a new type of flux pump with high-voltage output to shorten the charge and discharge time of the load magnet. The test of the pump with four stacked disks as the exciter for the load magnet has been carried out. This disk type flux pump yielded 70 mV of voltage across its terminal and 10 A of current through a 85 mH load magnet which was the field winding of 20 kVA class fully superconducting generator within 12 seconds. This output voltage of the new flux pump is about 10 times larger than that of our previous work. Moreover since it is easy to stack disks for a superconducting flux pump, the high-voltage exciter for a 1 H class superconducting magnet could be expected to be made easily.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:7 ,  Issue: 2 )