@Marla I don't quite understand. Could you explain more? Are you saying ripple voltage is the average voltage? I don't understand.

@ScientistSmithYT Your generator won't produce a steady 12.847 kV. The voltage will be rippling between 12.703 and 12.990 kV. The amplitude (peak-peak) of the ripple will be 280 V. The average voltage will be somewhere between those voltages (12.847 if the ripple waveform is a nice sinusoid, but I don't know enough about Marx generators to know if that's what's expected).

@ThePhoton Oh ok. So the ripple voltage is the voltage difference between the minimum and maximum output voltage of the array. Got it so there is a 288 volt divergence in the output.

@jippie I think once I may have posted a "heads-up" that my takehome exam was coming up, and a rough description of the type of questions people might see. My rules for that take home exam are students are allowed to use any sort of info they want, gathered passively, so long as they cite it. Asking is against my rule.