University of Khartoum

Comparison Between Distance And Differential Line Protection In New Numerical Relay

Comparison Between Distance And Differential Line Protection In New Numerical Relay

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Title: Comparison Between Distance And Differential Line Protection In New Numerical Relay
Author: Abdelhalim, Magid Abdelhalim Awad; Abdelraheem, Mohammed Mahdi
Abstract: Growth and urbanization in Sudan have - over the years - resulted in the demand for electricity’s rising to higher proportions. This results in load bases being centralized in certain geographical areas. Due to firm supply requirements of these loads, HV power lines are interconnected to form a ring network. HV lines are traditionally protected by distance schemes, due to their performance over the years. However the distance schemes have underperformed in some instances. Numerical relays are the result of the application of microprocessor technology in relay industry. Numerical relays have the ability to communicate with their peers, economical, easy to operate adjust and repair. Modeling of numerical relays is important to adjust and settle protection equipment in electrical facilities. Electrical protection systems are one of the most important elements for the continuity of supply. Due to the networks that are connected in the power systems by the transmission lines, transmission lines must be especially protected. In this study, differential protection and distance protection, two of the most important principles in the protection of transmission lines, are examined and the working principles of these protection structures are presented. The work of these two protection schemes are compared in different feature faults created on “Algadarif-Alfau” transmission line by means of MATLAB/SIMULINK program.
URI: http://khartoumspace.uofk.edu/123456789/25791
Date: 2017


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