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Old 09-11-2017, 11:27 PM   #21
Behemot
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Default Re: Database of UPS inverter output waveforms @ HWI

Got three more APC units (BK650EI, SU620INET, SMT750RMI2U).
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Old 09-21-2017, 02:29 PM   #22
Behemot
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Default Re: Database of UPS inverter output waveforms @ HWI

And one more, the SUA2200I.
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Old 11-03-2017, 09:25 AM   #23
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Default Re: Database of UPS inverter output waveforms @ HWI

Quote:
Originally Posted by Behemot View Post
Nice!

I never EVER look at the output of any inverter, unless it bears a Pure Sine Wave claim and I'm running inductive loads, for the same reasons that I don't routinely examine septic tank efficiency. Cuz eww.

If you're looking for a decent UPS: my UPS is a Xantrex PROsine 2500 with 0/1 cables running through the wall to an outdoor steel cabinet full of Walmart truck batteries. It outputs a sine wave (if it's isolated during measurement) even at its safety trip point of 118VAC 29+ amps which is substantially more than its rated 2500W. It can (and has) run my PC, monitor, Asterisk server, network, and rework station, for 4 days straight. It didn't turn on its cooling fans until power was back and it had to recharge all those batteries. Those Xantrex guys sell the good stuff.

I also just got a "UNGE" sine wave inverter from the wee folk in Shenzhen. $130 means I didn't expect it to really produce 600W sine waves. I was wrong. This thing outperforms its specs by a bit less than 15% (I pushed it until it just started to clip, then backed off a little). It did that for two hours w/o overheating. It uses squirrely parts, and I'll be replacing those in a few years, but this might be a Xantrex Killer. Add two $20 Advance Auto economy car batteries and I get a 600W sine wave UPS that can run for hours for only $170.
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Old 11-03-2017, 09:30 AM   #24
Behemot
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Default Re: Database of UPS inverter output waveforms @ HWI

OMG, not this crap again?! I don't want no car accumulator BS in my thread. Car accumulator belongs to car.
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Old 11-14-2017, 12:14 PM   #25
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Default Re: Database of UPS inverter output waveforms @ HWI

why?
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Old 11-14-2017, 12:50 PM   #26
Behemot
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Default Re: Database of UPS inverter output waveforms @ HWI

Cause, well…car? ᗡ-:
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Old 11-14-2017, 01:50 PM   #27
eccerr0r
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Default Re: Database of UPS inverter output waveforms @ HWI

At least get trolling accumulators...
(hmm, was this supposed to be a double entendre post?)
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