krx wrote:
> 
> "vytjon" <no@any.mail> wrote in message 
> news:hb3oek$82b$1@trimpas.omnitel.net...
>> krx wrote:
>>> Grubiai tariant VA ir W priklauso nuo tavo naudojamos apkrovos tipų, 
>>> šiuo atveju - maitinimo bloko efektyvumo, PFC naudojimo maitinimo bloke.
>>
>>   Pamiršau paminėti - jeigu maitblokiai su aktyviu PFC pvz. Delta 
>> gamybos - su mažo galingumo UPS'u turėsi problemų :)
> 
> Kokių?

   Kai kurios PSU+UPS kombinacijos dingus įtampai pakabina UPS'ą. 
Dažniausiai keiksnojami Delta gaminti maitinimo šaltiniai (LT paprastai 
pasitaiko su Chieftec etikete).

"Power supplies manufactured by Delta Electronics are notorious for 
offering poor compatibility with UPSes. The problem is in their active 
PFC device. It is designed in such a way that at the moment of switching 
to the batteries it creates high short-term load on the UPS, triggering 
the latter’s protection. You can only solve this problem by replacing 
the UPS with a more advanced one (over 1000VA)."