AC Loss Measurement of a Short HTS Cable With Shield by Electrical Method
2011
In order to electrically investigate the AC losses of the
conductorand the
shieldin an actual HTS cable with
shield, we attached two voltage-leads to the
conductorand
shieldof a short cable which is the same as the Korea Electric Power Corporation (KEPCO) HTS cable under the field test, and examined it. The result shows that the polarities of the loss voltages measured from both voltage-leads are opposite. The ratio (1.6) between the losses for different transport periods measured from the
conductor-lead is quite large. It is considered from these results that the
conductorloss is the sum of the losses measured from the
conductor-lead and
shield-lead. And this
conductorloss corresponds well with the numerical result too. Moreover, the total loss of the short cable measured from the proposed electrical method at 77 K was compared with that of the KEPCO cable by calorimetry at 66.6 K through our numerical model. The difference between the measured losses and numerical ones is almost the same. This means that the
shieldloss is measured from the
shield-lead, and the
conductorloss from both voltage-leads.
Keywords:
-
Correction
-
Source
-
Cite
-
Save
4
References
12
Citations
NaN
KQI