Detailed design of a 13 kA 13 kV dc solid-state turn-off-switch
Abstract
An experimental facility for the study of electromagnetic effects in the First Wall-Blanket-shield (FWBS) systems of fusion reactors has been constructed at Argonne National Laboratory (ANL). In a test volume of 0.76 cu m, a vertical, pulsed 5 kG dipole field (B 320 kGs(-1)) is perpendicular to a 10 kG solenoid field. Power supplies of 2.75 MW at 550 V dc and 5.5 MW at 550 V dc and a solid-state switch rated at 13 kA and 13 kV (169 MW) control the pulsed magnetic fields. The total stored energy in the coils is 2.6 MJ. This paper describes the design and construction features of the solid-state switching circuit which turns off a dc of 13 kA in approximately 82 micros and holds off voltages of 13 kV.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1985
- Bibcode:
- 1985STIN...8617623P
- Keywords:
-
- Blankets (Fusion Reactors);
- Design Analysis;
- Electromagnetic Fields;
- Shielding;
- Solid State;
- Switching Circuits;
- Construction;
- Switches;
- Test Facilities;
- Electronics and Electrical Engineering