I am seeking software that can assist me in drawing equivalent electrical circuits similar to the one shown in the attached image. Any assistance would be greatly appreciated.
If you use TeX for documentation purpose, there is a package: \usepackage{circuitikz} available to have really nice looking schematic. The symbols should apply to standards, such as IEC. I haven't used it, yet, so I can't tell if it's straight forward to draw some circuitry by some kind of netlist syntax. But it seems very well.