Fault Angle Dependent Resistance of YBCO Coated Conductor with Stainless Steel Stabilizer Layer

• Published in: Transactions on electrical and electronic materials Vol. 10; no. 2; pp. 66 - 69
• Main Authors: Du, Ho-Ik, Kim, Min-Ju, Doo, Seung-Gyu, Kim, Yong-Jin, Han, Byoung-Sung
• Format: Journal Article
• Language: Korean
• Published: 한국전기전자재료학회 25.04.2009
• Subjects: Fault angle; Quench; Superconducting fault current Limiter; Voltage grade; YBCO coated conductor; Voltage grade; YBCO coated conductor; Quench; Superconducting fault current limiter; Fault angle
• ISSN: 1229-7607; 2092-7592

To manufacture YBCO-coated conductors as superconducting fault current limiters, it is important to conduct researches on their durability. To test their durability, it is necessary to investigate their properties before and after the quench in more severe conditions than in general operating conditions. In this study, their voltage-current and resistance properties were measured before and after a fault current was repetitively applied to them. For the applied voltage, the voltage grades of the YBCO coated conductors were considered. The current amplitude was controlled using protective resistance on an experimental track, and the time and number of applications were fixed to produce the quench occurrence at the fault angles of $0^{\circ}$, $45^{\circ}$, and $90^{\circ}$. The operating conditions of the YBCO coated conductors as the main components of superconducting fault current limiters were determined using their voltage properties. The voltage properties of the YBCO coated conductors that were analyzed in this research will be used as important data for their practical application to superconducting fault current limiters.