PLANNING AND COORDINATION OF RELAY IN DISTRIBUTION SYSTEM USING ETAP

Abstract

This novel speaks about protection of power system network which carries protective relays that isolates
the faulted portion of the network to prevent equipment damage, injury to operators and to ensure minimum system
disruption enabling continuity of service for healthier portion of the network. The protective relays must also be
able to discriminate between criticized and standard operating conditions.When many relay are involved, coordination of all relay operation in a particular zone is complex and requires optimization. This problem is studied
and the protection coordination problem is formulated and simulated in ETAP.Load flow analysis test and short
circuit analysis test was carried out and analyzed.