Post by opty on Jul 24, 2012 1:41:55 GMT -5
Of the three main UPS topologies, the online uninterruptible power supply is the only one that can provide completely break-free protection if the mains supply should fail. And, in the event of the UPS developing a fault or suffering an overload, the online UPS is designed to deliver safe failure to mains. This is achieved through an automatic system bypass.