Experimental study on sudden-short-circuit characteristic of synchronous generator with SCFCL

Superconducting fault current limiters (SCFCLs) are expected to improve the reliability of power systems. An SCFCL of a transformer type with adjustable trigger current level was proposed. Three SCFCLs of this type for 3-phase AC power source were designed and made. The trigger current level of each...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 2001-03, Vol.11 (1), p.2343-2346
Hauptverfasser:	Hatta, B., Nitta, T., Muroya, S., Shirai, Y., Kitagawa, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adjustable Applied sciences Circuit faults Circuit testing Circuits Connection and protection apparatus Constraining Couplings Electrical engineering. Electrical power engineering Exact sciences and technology Fault current limiters Faults Generators Impedance Power sources Power system faults Power system reliability Superconducting coils Superconducting magnets Superconductivity Synchronous Synchronous generators
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Beschreibung
Zusammenfassung:	Superconducting fault current limiters (SCFCLs) are expected to improve the reliability of power systems. An SCFCL of a transformer type with adjustable trigger current level was proposed. Three SCFCLs of this type for 3-phase AC power source were designed and made. The trigger current level of each trial SCFCL can be adjusted to equal value, and the SCFCLs can be used as a 3-phase SCFCL. As preliminary tests, sudden-short circuit tests with a 20 kVA synchronous generator are carried out. Limiting tests of the 3-phase SCFCL at fault are carried out with the synchronous generator. The effect of 3-phase SCFCL and the characteristics of the synchronous generator are studied experimentally.
ISSN:	1051-8223 1558-2515
DOI:	10.1109/77.920331