Characteristic tests of a 1 MVA single phase HTS transformer with concentrically arranged windings

A 1 MVA single phase high temperature superconducting (HTS) transformer was manufactured and tested. The rated voltage of primary and secondary of HTS transformer are 22.9 kV and 6.6 kV respectively. BSCCO-2223 HTS tape was used for HTS windings of 1 MVA HTS transformer. In order to reduce AC loss g...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2005-06, Vol.15 (2), p.2214-2217
Main Authors: KIM, Sung-Hoon, KIM, Woo-Seok, CHOI, Kyeong-Dal, JOO, Hyeong-Gil, HONG, Gye-Won, HAN, Jin-Ho, LEE, Hee-Gyoun, PARK, Jung-Ho, SONG, Hee-Suck, HAHN, Song-Yop
Format: Article
Language:English
Subjects:
AC generators
Applied sciences
BSCCO parallel HTS tapes
Circuit testing
Coils (windings)
concentrically arranged winding
Electrical engineering. Electrical power engineering
Electronics
Exact sciences and technology
GFRP cryostat
High temperature superconductors
HTS transformer
Insulation testing
Manufacturing
Materials
Phase transformations
Power transformer insulation
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
shell core
Shells
Silicon
Silicon steels
Steel
Superconducting devices
Superconducting films
Superconducting tapes
Superconductivity
Testing, measurement, noise and reliability
Transformer cores
Transformers
Transformers and inductors
Voltage
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Description
Summary:A 1 MVA single phase high temperature superconducting (HTS) transformer was manufactured and tested. The rated voltage of primary and secondary of HTS transformer are 22.9 kV and 6.6 kV respectively. BSCCO-2223 HTS tape was used for HTS windings of 1 MVA HTS transformer. In order to reduce AC loss generated in the HTS winding, the concentrically arranged winding was adopted to 1 MVA HTS transformer. Single HTS tape for primary windings and 4 parallel HTS tapes for secondary windings were used considering the each rated current of the HTS transformer. A core of HTS transformer was fabricated as a shell type core made of laminated silicon steel plate. And a GFRP cryostat with a room temperature bore was also manufactured. The characteristic tests such as no load test, short circuit test and several insulation tests were performed at 65 K using sub-cooled liquid nitrogen. Through these test results, the validity of design of HTS transformer was ascertained.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2005.849615