Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=uemp20 Electric Power Components and Systems ISSN: 1532-5008 (Print) 1532-5016 (Online) Journal homepage: http://www.tandfonline.com/loi/uemp20 Gravitational Search Based Algorithm for Optimal Coordination of Directional Overcurrent Relays Using User Defined Characteristic Astha Chawla, Bhavesh R. Bhalja, Bijaya Ketan Panigrahi & Manohar Singh To cite this article: Astha Chawla, Bhavesh R. Bhalja, Bijaya Ketan Panigrahi & Manohar Singh (2018): Gravitational Search Based Algorithm for Optimal Coordination of Directional Overcurrent Relays Using User Defined Characteristic, Electric Power Components and Systems, DOI: 10.1080/15325008.2018.1431982 To link to this article: https://doi.org/10.1080/15325008.2018.1431982 Published online: 21 Mar 2018. Submit your article to this journal View related articles View Crossmark data