Figure 1
From: An experimental validation of partial discharge localization using electromagnetic time reversal

Geometry of the 2D power transformer model, including a metallic tank (thick black PEC frame), source, sensor, and three windings. The tank is symmetric along the x and y axes. d = 250 mm, c = 250 mm, and r = 100 mm. w = 0.5 m and l = 1 m.