Islanding Detection Using Passive Technique Navpreet Singh 1 and Akhil Gupta 2 1,2 Department of Electrical Engineering-UIE Chandigarh University Mohali, India navpreetsingh909@gmail.com akhilgupta1977@gmail.com February 6, 2018 Abstract The islanding is power flow between load, utility grid and distribution generation source when loss of gird is occurring. Now there is need of anti-islanding, it can be performed by using passive technique. Anti-islanding algorithm im- plements the scheme of disconnection of utility grid during fault through loss of grid protection system instantaneously from DG source. The main objective of anti-islanding algo- rithm is to detect the loss of grid and allow the DG source to behave as Power Island which supplies the power to load only. Key Words : islanding technique; passive method; un- der/over voltage and frequency 1.1. Introduction The distribution generation (DG) sources are time-honored from the renewable source of energy (wind energy, tidal energy, thermal energy, solar energy etc.). These sources of energy are pollution free and high energy efficiency. The DG source is manufactured 1 International Journal of Pure and Applied Mathematics Volume 118 No. 19 2018, 1195-1214 ISSN: 1311-8080 (printed version); ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu Special Issue ijpam.eu 1195