The calculation results of stability margin, current sharing temperature, temperature margin and distribution of conductor temperature are presented and discussed in this paper.
For each strand, "critical current density" and "current sharing temperature" measurements have been carried out, with a temperature precision of few tens of mK.
The measured current sharing temperature agreed with the expectation values from strand performance indicating that no degradation was caused by production process.
Possibly the highlight of the tests was the measurement of the current sharing temperature (TCS) at different transport currents I in the self-field of the coil.
However, the reduction in the estimated current sharing temperature is expected to be a few hundred milli-Kelvins, which seems acceptable as a margin in a qualification trial.
The results of the current sharing temperature (TCS) measurements at I=80, 69 and 57 kA, presented in a companion paper (Part 1), are evaluated here using the M&M code.
The analytical results indicate that the current sharing temperature of the internal-tin and bronze process conductors is expected to be 6.0 K and 6.7 K, respectively, when the current distribution is uniform.
The test program is focussed on the current sharing temperature, Tcs, at the nominal operating conditions, 68 kA current and 11.15 T effective field, which can be fully reproduced in the SULTAN test facility.
Distributions of the Current Sharing Temperature (TCS) in the superconductor were obtained from numerical results using parameterization of the critical surface in the form similar to that proposed for ITER.
One major test performed is the so called "temperature margin test" during which the inlet helium temperature of the Winding Pack (WP) is controlled to increase progressively to the calculated current sharing temperature of 7.3 K in the high field region to launch the quench.
