Calculating power from oscilloscope CSV file

[omglol]

I am trying to measure power of the three phase machine using 4-channel oscilloscope and this method: http://teledynelecroy.com/doc/threephase-power-measurements-using-a-fourchannel-scope-to-measure-threephase-power

I used 2 differential probes and 2 current probes, set like this:

Channel 1 (Vac): Differential probe, attenuation ratio 1/20, oscilloscope setting 500 mV/div
Channel 2 (Vbc): Differential probe, attenuation ratio 1/20, oscilloscope setting 500 mV/div
Channel 3 (Ia): Current probe, ratio 10 mV/A, oscilloscope setting 50 mV/div
Channel 4 (Ib): Current probe, ratio 10 mV/A, oscilloscope setting 50 mV/div


Now I saved (attached) approximately 1.5 period of the waveform as CSV file. What would be the easiest way to calculate power from this data? I have no experience here, please help me. Thank you very much.

[alm]

Your question is not sufficiently specific to understand the nature of your problem. What did you try? What problems did you run into? What information have you found?

I would mport the data in a spreadsheet of choice or in MATLAB or whatever you are familiar with. Convert the measured values to real voltage / current values based on attenuation / conversion ratios (so multiply voltage by 20, multiply current by 10 mV/A). Use the equation at the top of that application note to calculate instantaneous power at each point in time, and from that you can calculate the average (arithmetic mean) power across one cycle.

If you have a fancy scope, then you should be able to do all of this inside the scope (scale the channels, add and multiply, and cycle mean).

[joeqsmith]

Are you just not understanding the math?  Don't know how to use Excel or other tool?   Seems like you have everything you need.