A new topology of bridge-type Non-Superconducting Fault Current Limiter

This paper proposes a new Non-Superconducting Fault Current Limiter (NSFCL) topology. The bridge-type resistive NSFCL is simple, low-cost, and compact. The proposed topology is optimized to protect against short transients and to work in conjunction with other fuses or circuit breakers. A prototype has been designed and built for a 3-phase 600V_RMS,L-L system. It has been tested in a UL certified high power test lab with 5A normal current, and 100kA potential fault current. Both simulation and experimental results are presented for proof of concept.