الفهرس 
Adaptive multi-function transformer differential protective relay
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Abstract
This thesis presents a new relay model for the transformer differential protection. The thesis focuses on some operating condition which cause differential relay mal-function. It proposed a self-adaptive differential characteristic that help to avoid such relay mal-function. It also introduced a transformer Internal fault model to investigate the performance of the proposed relay model during internal faults using PSCAD/EMTDC software program