Yusuf L, Nwohu M. Effects of Unified Power Flow Controller (UPFC) on Distance Relay Tripping Characteristics in the North-Central Nigerian 330kv Network. Nig. J. Tech. [Internet]. 2015 Sep. 27 [cited 2026 Sep. 28];34(4):793-801. Available from: https://www.ajol.info/index.php/njt/article/view/124045