Algorithm for detection of the broken phase conductor in the radial networks

• Main Authors: Ostojić Mladen M., Đurić Milenko B.
• Format: Article
• Language: English
• Published: Savez inženjera i tehničara Srbije 2016-01-01
• Series: Tehnika
• Subjects: broken phase conductor; phase comparator
• Online Access: http://scindeks-clanci.ceon.rs/data/pdf/0040-2176/2016/0040-21761602257O.pdf

The paper presents an algorithm for a directional relay to be used for a detection of the broken phase conductor in the radial networks. The algorithm would use synchronized voltages, measured at the beginning and at the end of the line, as input signals. During the process, the measured voltages would be phase-compared. On the basis of the normalized energy, the direction of the phase conductor, with a broken point, would be detected. Software tool Matlab/Simulink package has developed a radial network model which simulates the broken phase conductor. The simulations generated required input signals by which the algorithm was tested. Development of the algorithm along with the formation of the simulation model and the test results of the proposed algorithm are presented in this paper.