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

Volume

10

Issue

1

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

1410

Lastpage

1413

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;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.828503

Filename

828503