Optimised Time for Travelling Wave Fault Locators in the Presence of Different Disturbances Based on Real-World Fault Data

The real-world travelling wave fault data investigated in this paper indicate disturbances generate unpredictable, non-stationary and random waveforms which may cause maloperation of protection control elements a power system including locators (TWFL). This type locator is directly dependent on the detection an accurate time arrival (ToA) waves (TW) generated by fault. becomes complicated presence when their ToAs are detected earlier than TWs. Since occur high-frequency bands (e.g. >50 kHz), capacitor voltage transformer employed to measure TW signals; involves acquiring current flowing ground removing low-frequency components (50/60 Hz). Disturbances create high magnitude pulses pre-fault section signal that last for short time. Therefore, TWFL starts its computations requires be optimised so effect eliminated. analysis techniques mentioned based data, solution uses statistical tools, such as cost function, mean standard deviation, alongside Digital Signal Processing algorithms.