Question ups

[waje]

do i need a pure sine wave ups for this psu in the link https://www.thermaltake.com/products-model.aspx?id=C_00002408 or simulated sine wave ups will be good?

 

[Aeacus]

While simulated sine wave UPSes are cheaper than true/pure sine wave UPSes, PSUs with Active PFC aren't compatible with simulated sine wave. You might get simulated sine wave UPS running with Active PFC PSU but there can be some major issues. Here's what, how and why.

How do you know which PSUs have Active PFC and which ones don't?
Simple, every PSU that has 80+ certification (e.g 80+ Bronze or 80+ Gold) has Active PFC.

What is Active PFC?
Further reading: https://en.wikipedia.org/wiki/Power_factor#Power_factor_correction_(PFC)_in_non-linear_loads

What can happen when using simulated sine wave UPS with Active PFC PSU?
When simulated sine wave UPS switches over to the battery power, one of 3 things can happen:

1. UPS displays error resulting PC to shut down immediately.
2. UPS shuts down resulting PC to shut down immediately.
3. UPS switches to battery power resulting PC to power off from UPS (PC stays on).

Why it happens?
Simulated sine wave UPS produces a zero output state during the phase change cycle resulting in a power “gap”. This gap may cause power interruption for active PFC PSUs when switching from AC power output to simulated sine wave output (battery mode).

What to do next?
As stated above, your PC can run off from simulated sine wave UPS but be prepared when you face issues with it. When issues do rise, your best bet would be returning the simulated sine wave UPS and getting true/pure sine wave UPS. Or you can go with true/pure sine wave UPS off the bat.

While that Tt unit doesn't have 80+ certification, it still has Active PFC. It says so in the specs, just look behind: "PFC (Power Factor Correction)". Here, i'd go with true/pure sine wave UPS to be safe.

 

[waje]

While simulated sine wave UPSes are cheaper than true/pure sine wave UPSes, PSUs with Active PFC aren't compatible with simulated sine wave. You might get simulated sine wave UPS running with Active PFC PSU but there can be some major issues. Here's what, how and why.

How do you know which PSUs have Active PFC and which ones don't?
Simple, every PSU that has 80+ certification (e.g 80+ Bronze or 80+ Gold) has Active PFC.

What is Active PFC?
Further reading: https://en.wikipedia.org/wiki/Power_factor#Power_factor_correction_(PFC)_in_non-linear_loads

What can happen when using simulated sine wave UPS with Active PFC PSU?
When simulated sine wave UPS switches over to the battery power, one of 3 things can happen:

1. UPS displays error resulting PC to shut down immediately.
2. UPS shuts down resulting PC to shut down immediately.
3. UPS switches to battery power resulting PC to power off from UPS (PC stays on).

Why it happens?
Simulated sine wave UPS produces a zero output state during the phase change cycle resulting in a power “gap”. This gap may cause power interruption for active PFC PSUs when switching from AC power output to simulated sine wave output (battery mode).

What to do next?
As stated above, your PC can run off from simulated sine wave UPS but be prepared when you face issues with it. When issues do rise, your best bet would be returning the simulated sine wave UPS and getting true/pure sine wave UPS. Or you can go with true/pure sine wave UPS off the bat.

While that Tt unit doesn't have 80+ certification, it still has Active PFC. It says so in the specs, just look behind: "PFC (Power Factor Correction)". Here, i'd go with true/pure sine wave UPS to be safe.

thank you
i face power outage for 5 times per day and in every time my pc just stays on and didn't shut down at any time so should i go for true sine wave ups if i had no proplems?

 

[Aeacus]

Like i said above, you might get your PC running with simulated sine wave UPS but the chances for that are 50:50. Either it works or it doesn't work.

Also UPS doesn't protect your PC only from blackouts. Instead, UPS will eliminate all problems that are caused by the electrical grid. Those include: blackouts (power loss), brownouts (voltage drop) and surges (voltage increase). UPS also has AVR in it (Automatic Voltage Regulator) which stabilizes the income voltage from e.g 215V-225V to stable 220V for your PSU to consume.
So, while your blackouts may not be enough to shut down your PC; brownouts, surges and unstable voltage can still damage your PSU. And when your PSU gets damaged, it has the ability to fry everything it's connected to (basically your whole PC).

In my honest opinion, all PCs should have an UPS and i suggest you also get one for your PC. And here, if i were you, i'd go with true/pure sine wave UPS.

Actually, i've already done that. My 2x PCs (Skylake and Haswell, full specs with pics in my sig) do have their own UPS, 1x UPS per PC. I have two of these in use:
CyberPower CP1300EPFCLCD (1300VA/780W, true/pure sine wave, line-interactive),
specs: https://www.cyberpower.com/hk/en/product/sku/CP1300EPFCLCD

And under the spoiler is combined image of my UPSes, click on spoiler to view.

Spoiler: my upses

Top left: After unboxing
Top right: Power-on test
Bottom left: Haswell build UPS in service
Bottom right: Skylake build UPS in service