Inverter THD

chabeck · October 2023

My inverter is on use last legs, XW4024. Looking at a 4kw AIMS Power PICOGLF40W24V120V 24 Volt Low Frequency Pure Sine Inverter Charger but it lists,

THD: <10% DC.

Is that acceptable? What is that exactly?

SumPower · October 2023

THD: <10% DC

To the best of my knowledge there is not THD with pure DC circuits. With that being said, I would be more concerned with Power Factor or Power Factor Corrected circuits being in the 95% or above range.

If the inverter you posted really has a THD of 10%, I would look elsewere.

Maybe the Schneider at the link below.

https://www.solar-electric.com/schneider-electric-sw-conext-inverter-4024-120.html

Dave Angelini · October 2023

The inverter I use (XWP) by Schneider "waveform" is rated at less than 5% THD at rated power output. Your out of production XW4024 should be similar but you should verify.

Inverter THD

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