The thermal relay design to improve power system security for the HTS cables in Icheon substation

Hansang Lee, Byeong Mo Yang, Gilsoo Jang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


This paper proposes a model for thermal protection relay for the high temperature superconducting (HTS) cables and thermal protection scheme in Icheon substation in Korea. The thermal protection is one of the most important factors to guarantee the reliability of the HTS cable as well as power system security. The superconductivity of the HTS cables, which can be guaranteed by the liquid nitrogen near 70 K, can be threatened by the large fault current. To avoid the overheating in HTS cable and to secure the power system operation with the HTS cable, the thermal protection relay should be considered. To find the optimal thermal-protection scheme, the model for the superconducting power system has been achieved in Icheon substation and the thermal protection scheme has been verified through PSCAD/EMTDC simulation.

Original languageEnglish
Pages (from-to)280-285
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Publication statusPublished - 2013


  • High temperature superconducting (HTS)
  • Security
  • Thermal protection
  • Thermal relay
  • cable

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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