Abstract
In March of 1998 a short occurred in the TF system. Small amounts of copper and carbon tracking were found in the A-right TF. A crack in a finger in the central column was also found. Subsequent disassembly revealed arcing damage to the outer - upper horizontal leg finger joint region, at the lead connection leg where the voltage difference is large. Material was also removed from the neighboring torque shell. Significant degradation of the felt metal in the inner fingers at the central column was also found. This initiated re-analysis of the finger design, testing of the felt metal, and a decision to replace all the felt metal in the machine. Design improvements have been made but some uncertainty as to the cause of the failure remains.
| Original language | English (US) |
|---|---|
| Pages | 427-432 |
| Number of pages | 6 |
| State | Published - 1999 |
| Externally published | Yes |
| Event | 18th IEEE/NPSS Symposium on Fusion Engineering (SOFE99) - Albuquerque, NM, USA Duration: Oct 25 1999 → Oct 29 1999 |
Other
| Other | 18th IEEE/NPSS Symposium on Fusion Engineering (SOFE99) |
|---|---|
| City | Albuquerque, NM, USA |
| Period | 10/25/99 → 10/29/99 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering