Loss analysis of a model transformer winding

In the paper we present an analysis of AC losses in windings of a 14 kVA superconducting transformer with Bi-2223/Ag winding. AC losses of individual pancake coils of the secondary winding were measured. Discussion of the meaning of AC loss measurements in individual pancakes is presented. Measureme...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2003-06, Vol.13 (2), p.2352-2355
Main Authors: Jansak, L., Zizek, F., Jelinek, Z., Timoransky, Z., Piel, H., Polak, M.
Format: Article
Language:English
Subjects:
Alternating current
Applied sciences
Conductors
Critical current
Current loss
Electrical engineering. Electrical power engineering
Exact sciences and technology
High temperature superconductors
Loss measurement
MAGNETIC FIELD
Magnetic field measurement
Magnetic fields
Magnetic losses
Pancake coils
Superconducting coils
Superconducting films
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSFORMERS
Transformers and inductors
Transport
WINDING
Windings
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Summary:In the paper we present an analysis of AC losses in windings of a 14 kVA superconducting transformer with Bi-2223/Ag winding. AC losses of individual pancake coils of the secondary winding were measured. Discussion of the meaning of AC loss measurements in individual pancakes is presented. Measurement of loss in short samples (critical current in external magnetic field, transport current losses) was done and the results were compared with losses in the winding under operating conditions using available published data. An effect of temperature on winding losses was also studied.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2003.813067