Fault Current Limiter by using Series Transformer for Distribution System based on SCR

Due to the complexity of distribution network and the generations, fault current is the major problem in the system. This paper shows the SCR Based Fault Current Limiter by Using Series Transformer for Distribution System (SCRBFCLBUST). The utilization of transformer based solid state fault current limiter gives an effective way to control the magnitude of fault current. This reduces the cost of high circuit breaker. For controlling the fault current, the primary winding of an isolating transformer is connected in series with the line while the secondary side is connected to a thyristor in parallel. By limiting the magnitude the fault current is controlled. Using this SCRBFCLBUST the overvoltage can be controlled. It improves the power quality by simple structure and reducing the power quality problems. Its cost is significantly low. This SCRBFCLBUST can control the fault current without delay and increase the power quality of the system.