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Power system restructuring includes several new aspects in power system, especially in the area of transmission line protection. Therefore, in this paper transmission line protection (TLP) using distance relay and modelling of distance relay with analog antialiasing filter for TLP is presented, on the basis of several points of operational aspects, throughout the last decade. Protection system of...
Distance relay offers protection of transmission line over a range of distance. Settings of a distance relay can be improved by obtaining information about fault resistance of the transmission line. Accurate estimation of fault resistance helps in efficient operation of the relay in the transmission line. Fault resistance can be estimated by analyzing the fault files at the substations. COMTRADE fault...
Distance relay scheme is widely used for the protection of transmission lines. It has many characteristics such as Impedance, Reactance, MHO and Quadrilateral characteristics. Quadrilateral characteristics provide better protection for Transmission line as compared to other characteristics. This paper presents the development of quadrilateral and elliptical relay characteristics in Numerical Relay...
This paper presents a real study of working with modern distance protection of a transmission line, by analyzing and simulating it in a specialized software. We will present all possible defects, and will also highlight the need for protection of remotely controlled transmission and distribution lines for electricity.
This paper discusses the distance relay over-reaching due the presence of Thyristor Controlled Series Compensator (TCSC), one of the series connected Flexible Alternating Current Transmission System (FACTS) devices, considering its MOV operation. This is done by presenting the measured impedance at the relaying point in the presence of TCSC at the near end of the next line. The measured impedance...
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