Intelligence Control Based Fault Detection in Transmission Lines

Electrical Power System is very large, complex which is spread over a large area. A fault in a circuit disturbs normal operation of the system. Fault usually causes flow of excessive current, abnormal voltages. Detecting faults can help greatly in protection of power system. A modern solution for fault detection of power system is by implementing Wavelet Transform. A Wavelet Transform is a tool for analyzing the transient signals based on mathematical formula. Transient signals include temperature over voltages, temperature over currents etc., so this method is used to detect faults in power system by by low pass filter and high pass filter. Voltage signal is taken under fault conditions and being processed by using wavelet tool. If the energy calculated is greater than corresponding threshold value, then we can conclude that there is a fault disturbance in a line.