Test Results of a Three Phase 10㎸A HTS Transformer With Double Pan Cake Coils

3상 10kVA 더블 팬케익 코일형 고온초전도 변압기 특성시험 결과

  • Published : 2003.03.01

Abstract

The high temperature superconductor transformers gain interests from the industries. This paper described construction and test results of 10㎸A HTS transformer Three phase transformer with double pancake windings were constructed. To reduce the leakage magnetic field, secondary coil were placed between the two primary coils. BSCCO-2223 wire. silicon sheet steel core and FRP cryostats were used to construct the transformer. Three coils were stacked in one cryostat. Two double pancake coils were connected in series for the primary coil and one double pancake coil was used for the secondary coil. Total number of turns of the primary winding and the secondary winding were 112turns and 98urns, respectively, The rated voltages of each winding were 440/220V. The rated currents of each winding were 13.1/26.2A. After the tests of basic properties of the three phase HTS transformer using no-load test, short-circuit test and full-load test, continuous operation of 100 hours with pure resistive load has been carried out. Test results proved over-load capability and reliability of the HTS transformer.

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References

  1. S.P.Metha, N.Aversa and M.S.Walker, 'Transforming Transformers,' IEEE Spectrum, Vol.34, No.7, pp.43-49, July, 1997 https://doi.org/10.1109/6.609815
  2. S.W.Schwenterly, et al., 'Performance of a 1-MVA HTS Demonstration Transformer,' IEEE Trans. on AS, Vol.9, No.2, pp.680-684, June, 1999 https://doi.org/10.1109/77.783387
  3. K.Funaki, et al., 'Development of a 22kV/6.9kV Single-Phase Model for a 3MVA HTS Power Transformer,' IEEE Trans. on AS, Vol.11, No.1, pp.1578-1581, March, 2001 https://doi.org/10.1109/77.920079
  4. J.K.Lee, et al., 'Development of a Tree Phase 100kVA Superconducting Power Transformer with Amorphous Core,' IEEE Trans. on AS, Vol.9, No.2, pp.1293-1296, March, 1999 https://doi.org/10.1109/77.783538
  5. 이희준 등, '더블팬케이크 권선형 10kVA 고온초전도 변압기,' 대한전기학회논문지, 제 50권(B), 제 2호, pp. 65-71, 2001