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FP5

BIG-POWA Sintesi della relazione

Project ID: G5RD-CT-2000-00219
Finanziato nell'ambito di: FP5-GROWTH
Paese: Czech Republic

Design, manufacture and tests of the coils made of HTS conductors

Two double-pancake coils were wound of the bundle conductor consisting of 7 parallel transposed mutually insulated HTS tapes. Two other double-pancake coils were wound of the bundle conductor consisting of 20 parallel non-transposed non-insulated HTS square wires. Critical current, current distribution, power loss and
temperature were measured.

Each transposed coil has 2 x 10 turns and dimensions: dia. 264/244 mm, length 37 mm. Critical currents of the individual coils are 115 A and 113 A. The limit of thermal stability is 220 A DC and 180 A RMS.

Each non-transposed coil has 2 x 3 turns and dimensions: dia. 292/244 mm, length 16 mm. Critical currents of the individual coils are 176 A and 179 A. The limit of thermal stability is 320 A DC at least.

The critical current of the whole experimental winding (2 transposed coils in the centre, 2 non-transposed coils at the ends) is 122 A. The winding withstands the AC current pulse 677 A pk / 4 s at least.

Obtained results and experience will be used for further research and development particularly of superconducting transformers.

Informazioni correlate

Reported by

SKODA VYZKUM s.r.o.,
Tylova 57
316 00 Plzen
Czech Republic
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