Answer Posted / abdulla al anoohi
I totally agree with the first anser also. but what I would
like to mention some UPS systems have two back up supple.
The first back up is throw the battaries while they are all
time buck-boost charging. when the power cuts up the it
will feed the load for some time. The secound back up will
be the stand by generator. this is used so no searise
losses of money because the battaries can feed from 15-30
min.
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