Transformers have to sustain heavy shocks against transient switching and lightning over voltages. For this purpose, their insulations are designed to with stand these shocks. Already instant fault recognition methodology is proposal by just inspecting the wave shape of impulse applied voltage result. Theoretical results have been proposed in [1]. In this research paper, practical implementation of transformer testing is presented with verification by performing some experiments on actual transformer making this work as real time application. Moreover, MATLAB is utilized to get frequency response in order to find dominant pole during fault. This paper will provide manufacturers saving of time and testing cost by instant inspection of transformer test results. Moreover, it will provide facility to recognize the fault type and location to concentrate on the faulty portion only.