Protection of superconducting AC windings

Verhaege, T.; Agnoux, C.; Tavergnier, J.P.; Lacaze, A.; Collet, Manuel

doi:10.1109/20.119988

Cited by 13 publications

(2 citation statements)

References 4 publications

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“…We arbitrarily wound the secondary winding with a ten turn Cu conductor. The magnetic coupling coefficient The influence of the primary quench on the secondary current pulse is computed using (1) and 2.n -(t) (4) rp (t> = 2' ' ri(t) i = l np (t) is the number of quench initiating points that have appeared before t. Each quench inducing point gives rise to two normal fronts propagating at Vpf (Ip, Bp+B,). B, and B, are the flux induction created by the primary current (Ip) and the secondary current (I,) respectively.…”

Section: The 500 J Pulsed Power Transformermentioning

confidence: 99%

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Modelization and test of a 500 J superconducting pulsed power transformer

Floch¹,

Hiebel

Laumond

et al. 1999

IEEE Trans. Appl. Supercond.

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The aim of this work is to prove the feasibility of providing high current pulses through the use of a superconducting pulsed power transformer. This article presents the design and tests of a 500 J pulsed power transformer. This paper also describes the computer code created to simulate the primary quench development. During the tests, the primary winding was charged to its rated current (500 A). The secondary being connected to a 0.7 mC2 and 0.2 pH load, we obtained through this load a pulsed discharge of 7.2 ms duration. The current rose to 12.3 kA in 0.5 ms and 38 YO of the energy stored in the primary winding was transferred to the load. This current and energy transfer between primary and secondary is the best one ever recorded for such a device.

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Section: The 500 J Pulsed Power Transformermentioning

confidence: 99%

“…3). Each stage possesses a CuNi central wire, specially designed [4] to give the cable high normal front propagation velocities (V,,). We have built a facility to measure these velocities.…”

Section: The 500 J Pulsed Power Transformermentioning

confidence: 99%