Electrical engineering softwares

[gogycro]

Hello everyone, I'm student and I'm working in company for projecting LV and MV grid, I use softwares as:
-Eplan
-AutoCAD
-Ecodial
-Relux


Is there any other useful sotware for short circuits, analyse, calculations, breakers, protection, project management.... ??

[maestro]

Use SKM PTW32.