When someone wants to buy a UPS there are a lot of question to be answered:
- How many VA ?
- Is modified sinewave ok or pure sinewave is essential?
- high priced APC & Eaton or more reasonably priced powerwalker and cyberpower
- There are no reviews online which show oscilloscope outputs so the buyer can decide which ups should buy.
Linus, there is an opportunity for a review here, I think....
Please like this post, so mods forward it to Linus Media Group reviewers.
Volt-amperes are now marketing BS.
They mattered only when things lacked PFC and had high reactive current/power component.
Only thing what matters are watts, which shouldn't be less than 60% of VA rating.
Power factor below that is nothing but scamming buyers with bloated artificial totally useless marketing numbers.
Any "modified/simulated/stepped approximation" what ever means something, which doesn't have much to do with actual sinewave... Unless you're either awfully tired or have very poor vision/dirty glasses.
https://www.hardwareinsights.com/database-of-ups-output-waveforms/
Though the actual danger/risk in it is that some old/bad UPSes have crazy high peak voltages even over 400V.
For comparison 230V sinewave has 325V peak voltage.
linuxovios got a reaction from Lady Fitzgerald in Linus should make a review for pure sinewave UPS
