Why are my harmonics one-line, text report, and plot results different from each other?

EasyPower allows you to define different base current values for the harmonics calculations when it comes to one-line, text report, and plot options. This issue may cause some confusion as you will see different results on the one-line, text reports and plots. The examples below shows how the results in can be different:

The screen shot below is from the 6-PLS 10 YD motor with VFD where the harmonics data are simplified as follows:


One-line result for I_THD (pu system based):


Text Report (pu equipment rating base):


Plot THD (Amps):


As you can see, the three values are different. You can adjust the settings in Harmonics Options under Text Output, One-line Output, or Plot Output, respectively.


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