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Development of a three phase 100 kVA superconducting power transformer with amorphous cores

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6 Author(s)
Ji-Kwang Lee ; Woosuk Univ., Chonbuk, South Korea ; Woo-Seok kim ; Song-Yop Hahn ; Kyeong-Dal Choi
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The advent of AC superconducting wires with ultra-fine filaments promoted the development of superconducting transformers, but most superconducting transformers with large capacity had been single phase ones. This paper describes the development of a 100 kVA three phase superconducting transformer (440/220 V). Fundamental characteristics of the transformer are obtained through no-load tests, short circuit tests and load tests under various conditions. The transformer cores are made of amorphous films and immersed in liquid helium with transformer windings for simplifying the structure of it. The losses and efficiency are analyzed.

Published in:
Applied Superconductivity, IEEE Transactions on  (Volume:9 ,  Issue: 2 )

Date of Publication: June 1999

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