Abstract
We report on test results for a single-phase, 60-Hz, 13.8 kV / 6.9 kV, 1-MVA high temperature superconducting (HTS) transformer which was completed in February, 1998. This transformer models in many ways a full scale section of a 30-MVA HTS commercial transformer design. The transformer windings are crypcooled in the range of 25K and are made with a low-cost, surface-coated BSCCO-2212 conductor. Heat leaks are reduced using a liquid nitrogen thermal ballast and reservoir. The use of high temperature superconductors can substantially reduce transformer losses, weight, size, noise and potential fire and environmental hazards. Designs promise stable operation through faults without thermal degradation, and at temperatures that allow efficient and reliable refrigeration.
Original language | English |
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Pages (from-to) | 680-684 |
Number of pages | 5 |
Journal | IEEE Transactions on Applied Superconductivity |
Volume | 9 |
Issue number | 2 PART 1 |
DOIs | |
State | Published - 1999 |
Funding
Manuscript received September 15, 1998. Research sponsored by the U.S. DOE Office of Energy Efficiency and Renewable Energy, Superconductivity Program for Electric Systems. *Managed by Lockheed Martin Energy Research Corp. for the U.S. DOE under contract number DE-AC05-960R22464.
Funders | Funder number |
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Lockheed Martin Energy Research Corp. | |
U.S. DOE Office of Energy Efficiency and Renewable Energy, Superconductivity Program for Electric Systems | |
U.S. Department of Energy | DE-AC05-960R22464 |