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Smart Protection Scheme For Radial Distribution System
Rajasekaran.M1, N.Anitha2, D.Arulselvam3
1Rajasekaran.M, Assistant Professor, Electrical and Electronics Engineering, Sri SaiRam Engineering college, Chennai, TamilNadu, India.

2N.Anitha, Assistant Professor, Electrical and Electronics Engineering, Sri SaiRam Engineering college Chennai, TamilNadu, India.
3D.Arulselvam, Assistant Professor, Electrical and Electronics Engineering, Sri SaiRam Engineering college, Chennai, TamilNadu, India.
Manuscript received on February 05, 2019. | Revised Manuscript received on February 14, 2019. | Manuscript published on August 30, 2019. | PP: 3621-3624 | Volume-8 Issue-6, August 2019. | Retrieval Number: F9360088619/19©BEIESP | DOI: 10.35940/ijeat.F9360.088619
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: In this paper,the study of optimal coordination of directional overcurrent relays along with relay communication in HV substations is proposed. The relay coordination problem is non linear.It typically consist of two groups of control variables(Time Dial Settings:TDS and Plug Settings:PS). The purpose of relay coordination is to propose the suitable settings for all releases and ensure the coordination. The differential evolution is employed to solve for solutions of optimal relay coordination. The relay coordination is mainly done to improve selectivity of the relay to particular fault. ETAP is so popular for its capability for modelling of power system networks and analyzing various studies and Real Time simulations.
Keywords: coordination, Overcurrent relays, differential evolution ,EtAP 16.1,Digsi 4.93)