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Different of online ups and offline ups?

UPS systems UPS
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Question added by Mohammed Rezaul Karim , Associate Learning Facilitator (ICT) , BRAC
Date Posted: 2014/04/28
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Moneer Ali
by Moneer Ali , commissioning engineer , Aljaweesh General Trading LLC

In offline UPS the load will be directly connected to tha incoming AC power supply and the inverter will be always off until main AC supply is off or below or over the limits, while it's on in online UPS and load is connected to the inverter.

Rami Abu Shama
by Rami Abu Shama , Projects and Purchases Manager , ETCO Engineering for Trading and Contracting

The main different between Online and Line interactive (or Off Line) is: the Switch from mains to Inverter, in the Online systems there are no switching or transferring, so the transfer time is zero.

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