Design and Experiments of Novel Hybrid Type Superconducting Fault Current Limiters

Effects of a flux-coupling type superconducting fault current limiter on the surge current caused by closed-loop operation in a 10kV distribution network

“…In a way, the AC loss of superconductor will be an important factor affecting the engineering application of superconducting power equipment [14]. In the case that coated conductors (CCs) fabricate the coil, total AC losses of the CC coil will include two parts, one is the hysteresis losses occurred in a HTS and a substrate, and the other is the eddy-current loss occurred in stainless steel (SUS) stabilizers and a substrate.…”

Influence of YBa 2 HfO 5.5 – ‘derived secondary phase’ on the critical current density and flux-Pinning force of YBa 2 Cu 3 O 7−δ thick films

“…High Temperature Superconductor (HTS) thick films are being engineered for high current applications in high magnetic fields such as in magnetic shielding, low phase noise oscillators, magnetic resonance imaging receiver coils, flux transformers, fault current limiter, filters, persistent-current and HTS magnets which need high critical current density (J c ) [1][2][3][4][5][6]. Since J c decreases with both thickness and magnetic field, artificial pinning centers (APC) in addition to conventional ones are required to keep J c high.…”

Operation characteristics of a fault current limiter by high speed interrupter and a superconducting element

“…One of the solutions is to replace old breakers by new breakers of great capacities. However, technical constraints and repeated breaker replacement to meet the demand for increasing power are a great economic burden and it is not a fundamental solution [6][7][8]. Therefore, studies of fault current in relation to reduction have been done, and one method is to study limiters by means of high temperature superconductors.…”