JEE_V8_N2_RP3 Voltage Stability Analysis For Line Outage Contingency Using Cat Swarm Optimization For Placing Multiple TCSCS G. Naveen Kumar M. Surya Kalavathi Journal on Electrical Engineering 2230 – 7176 8 2 14 20 CSO (Cat Swarm Optimization), CPF (Continuation Power Flow), TCSC (Thyristor Controlled Series Capacitor), Voltage Stability, (CA) Contingency Analysis Voltage stability is regarded as one of the important areas of power system stability studies. A power system facing disturbances is at risks of voltage instability. Prime reason for the cause of instability is the sag in reactive power at various locations due to circuit contingencies. These are classified under large disturbance voltage stability. The aim of this paper is to identify the optimal location of Thyristor Controlled Series Capacitor in an interconnected transmission power system under N-1 contingency using Cat Swarm Optimization technique. October - December 2014 Copyright © 2014 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3043