Development of a single-phase 330kVA HTS transformer using GdBCO tapes

作者：Hu, Daoyu; Li, Zhuyong^*; Hong, Zhiyong; Jin, Zhijian

来源：Physica C-Superconductivity and Its Applications, 2017, 539: 8-12.

DOI：10.1016/j.physc.2017.06.002

• HTS transformer
• GdBCO tapes
• Characteristic tests
• 77 K
• AC loss
• Overload

With the mature of manufacture process and technology of high temperature superconductors, the critical current and stability are gradually increased. High temperature superconductors could be used in transformer, current limiter, generator, magnet and etc. This paper focuses on development and characteristic tests of a single-phase high temperature superconducting (HTS) power transformer with capacity of 330 kVA by using GdBCO tapes, which is 1/3 model of a 1 MVA / 10 kV / 0.4 kV HTS transformer. The specifications of iron core, HIS windings and cryostat are described in detail. The iron core is made of silicon steel plate. The arrangement of HTS windings are based on experimental and simulated results. The cryostat with a room temperature bore is manufactured using nonmetallic materials. Several characteristic tests and insulation tests are performed in liquid nitrogen of 77K. The efficiency and AC loss at rated load is 99.90% and 243.7W, respectively. In addition, an overload test was also performed.

• 出版日期2017-8-15
• 单位上海交通大学