A SOLUTION OF OVER CURRENT RELAY CO-ORDINATION PROBLEM WITH DIFFERENT TEST SYSTEMS USING MOTH FLAME OPTIMIZATION ALGORITHM

Abstract

Relay coordination is essential to ensure quick operation of relays in order to avoid the excessive damage to the
equipments and end users consumers. As the probability of shunt fault occurring in the network is higher comparatively so
protection is done accordingly. Relay coordination means coordination of proper relaying operation with certain insight between
primary and back-up relays pair connected in the network. The proper operation of overcurrent relays used in the network governs
mainly by two parameters, i.e. Plug Setting Multiplier (PSM) and Time Multiplier Setting (TMS). The method which inspire by
Nature Meta-heuristic Moth flame Optimization (MFO) Algorithm is used to find out the optimal relay setting.