Vectors operation in Excel

I made this spreadsheet to help me calculate the return current in unbalanced three phase loads. In this case the data to enter is the power factor and the magnitude of the current in each phase. The table will show the return current in complex number, polar and rectangular form. The chart will show the vector representing the current in the neutral conductor (in black).

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The next spreadsheet calculates and plots the voltages across a resistor and an inductor (it can be easily changed to capacitor) in a series circuit. 

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Example of Report

During my first semester of the Renewable Energy course I had to do some practical wiring and assembling of small solar power systems. The first task was to install a conduit according to a drawing. Even though this is a simple task, we always had to write a report about the practical work. This report is simple but complete and it has been used by other students as an example for more complex activities. I also drew the conduit with Google Sketchup to learn it. It's free and really easy.

Donwload the report
Download the drawing for Sketchup (.skp)