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Performance of a 3000/6000 V, 1000 kVA class superconducting transformer developed for a prospective power transmission model system integrated under superconducting environment (PROMISE)
Author(s) -
Tang YueJin,
Shimizu Hirotaka,
Kato Takeyoshi,
Hayakawa Naoki,
Yokomizu Yasunobu,
Matsumura Toshiro,
Okubo Hitoshi,
Kito Yukio,
Miyake Seiichi,
Kumano Tomoyuki,
Hatano Masayuki,
Satoh Kazuhiko,
Satoh Wataru
Publication year - 1996
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391160104
Subject(s) - transformer , electromagnetic coil , electrical engineering , voltage , superconductivity , materials science , delta wye transformer , nuclear engineering , liquid helium , power transmission , current transformer , engineering , power (physics) , helium , physics , atomic physics , quantum mechanics
A 3000/6000V, 1000 kVA class superconducting transformer (SC‐Tr) was developed for a Pro spective Power Transmission M odel System I ntegrated under S uperconducting E nvironment (PROMISE). In this transformer, the core and superconducting windings are immersed in liquid helium and the major insulation is provided by the liquid helium. This paper describes both the design features and measured characteristics of the SC‐Tr. Fundamental characteristics of the SC‐Tr are obtained through no‐load, short‐circuit tests and quench experiments. The results of the no‐load test have verified that the SC‐Tr has the capability to withstand ac voltage of 3000/6000 V of 60 Hz without any partial discharge. The short‐circuit tests have proved that the SC‐Tr is capable of carrying ac current of 170 Arms without quench in the superconducting windings. Furthermore, in a real‐load experiment with the PROMISE, electric power of 3800 V‐460 kVA of 50 Hz in high‐voltage side is transmitted through this SC‐Tr.