Applied Superconductivity
Splice Database
ORNL Superconductivity Program
Fusion Energy Division
SPI Readiness Reviews

SPI Readiness Reviews

[SPI Readiness Review Program]   [FY 2003-2010 Reviews]   [Where are the greatest risks (cables)?]
[HV issues on present projects]   [2011 Plans]   [Nitrogen Dielectric Database]

HV issues on present projects

  • Project 1
    • "All 3 phases exhibited PD inception at very low voltages"
    • "Dielectric failure at less than rated voltage"
    • "All three phase sets failed in different places"
    • "Expoxies generally lose strength for large stressed volumes;
      • problem is worse when defects such as bubbles are present; scaling with volume generally not known for most materials"
  • Data from Project 2
PD inception for Stycast 2850 KT Araldite 5808 flat and baton
chart chart

ORNL  FED   disclaimer