4.5 kV Rupture Resistant Press Pack IEGT

In this paper, a 4.5kV class Press Pack IEGT (PPI) with an improved rupture resistance is presented. That capability is not only achieved by increasing the thickness of the ceramic package, but also by optimizing the parts inside the package. The vacant space ratio is also important to ease up the explosion pressure. The rupture resistance of the new package could achieve 13.3 MA (exp 2) sec which is 1.7 times of that of the conventional package.