Analysis of Practical Result and MATLAB Simulation of Lightning Impulse Test on Transformer

In this paper result of Lightning Impulse Test of Transformer is compared with that of MATLAB simulation results. Curve fitting tool of MATLAB is used to obtain base curve of the Lightning Impulse waveform. The overshoot is then calculated by comparing the base curve and recorded curve. An overshoot in the system arises due to high capacitance and low inductance of transformer low voltage winding. This model helps to reduce duration of the lightning impulse test of transformer. Base curve has been derived according to IEC standard 60060-1:2010 and comparison done with respect to recorded curve from lightning impulse test on transformer as specified in IEC standard 60076-3.