Title :
Preparations for pulse operation tests of the ITER CS model coil using the JT-60 power supply
Author :
Matsukawa, Mami ; Miura, Y.M. ; Terakado, T. ; Okano, J. ; Kimura, T.
Author_Institution :
JAERI, Ibaraki, Japan
fDate :
3/1/2000 12:00:00 AM
Abstract :
Some preparations for pulse operation tests of the ITER CS model coil in the JT-60 power supply system have been performed. Since the ITER CS model coil takes a longer current ramp-up time, the pulse duration is extended up to 70 s from 15 s by decreasing the output voltage of the motor-generator. In the protection system a new grounding resistor with higher resistance has been installed and a new protection make-switch has also been developed. An analysis for the local resonances in the coil has been performed, and measurements of the coil impedance is planned to confirm the validity of the analysis results.
Keywords :
circuit resonance; circuit testing; fault diagnosis; fusion reactor instrumentation; power supplies to apparatus; protection; pulsed power supplies; superconducting coils; 70 s; ITER CS model coil; JT-60 power supply; coil impedance; current ramp-up time; fault analysis; grounding resistor; local resonances; maintenance; output voltage; protection; protection make-switch; pulse duration; pulse operation tests; Coils; Grounding; Performance analysis; Performance evaluation; Power system modeling; Power system protection; Pulsed power supplies; Resistors; System testing; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
