Switching and Decoupling Effects in a Single-Phase Transformer Using Extra DC Current

Gecer S., Ertekin E., Yanmaz E., Kosa J., Safran S., Ozguzel R., ...Daha Fazla

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, cilt.26, sa.3, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 3
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1109/tasc.2016.2537047
  • Dergi Adı: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Self-limiting transformer, superconducting coils, superconducting transformer, superconducting wire
  • Ankara Üniversitesi Adresli: Evet

Özet

A single-phase current-limiting transformer has been developed based on flux transfer. The transformer consists of two independent iron cores, one primary coil, two separate secondary coils, and superconducting windings/loops. Two iron cores are in a mechanical contact and clamped. Superconducting windings/loops act as coupling/decoupling mechanism between two iron cores. The transformer has been made operational via a switchgear of the applied dc current for a potential use in the current limitation when the transition between the superconducting and normal (quench) states can be triggered. DC and ac currents can be applied simultaneously in fault and no-fault conditions to mimic the realistic cases of use. With decoupling ac energy transfer, we propose that conventional switching off may be replaced with the approach described.