Voltage Sag Mitigation Effect Considering Failure Probability According to the Types of SFCL

The development of industrial technology is based on electronic devices that are sensitive to power quality. Thus, the demand for high-quality and reliable supplies increasing. Voltage sag results in severe problems manufacturing process quality-sensitive loads. When a fault occurs multi-ground distribution system, magnitudes current voltage faulted nonfaulted feeders become high. Hence, installing superconducting limiter (SFCL) an effective method compensating limitation sag. This study evaluates effects improving magnitude, duration, frequency according type SFCL used. First, system analyzed using PSCAD/EMTDC, simulation software, current-limiting element (CLE) SFCL. Second, expected caused by feeder assessed. Finally, improvement effect CLE compared. trigger-type with resistor as has been evaluated found be