A new fault location method for two and three – Terminal transmission lines accompanied by CT elimination

This paper presents a new fault location method for two–terminal and three–terminal transmission networks based on synchronized phasor measurement. System equations are written in order to estimate accurate fault–point distances. Mathematical analysis and simulation results indicate the capabilities of the proposed method in detecting fault–point distance with a reasonable error. The method is independent of fault type, fault resistance, and fault current. In the proposed method, Current Transformer (CT) is removed. Due to these facts, the proposed technique reduces costs of fault location. Simulations with EMTP/ATP were carried out to verify the accuracy of the proposed method.