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How can I calculate Back up time for Ups?

UPS systems Startups
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Question added by Wael Moustafa Elagamy , Electrical Engineer , SBTMC
Date Posted: 2014/02/10
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VIBIN Kuruppam valappil house
by VIBIN Kuruppam valappil house , R&D Engineer, Hykon , HYKONPOWER ELECTRONICS

actually it depents up on the battery AH ratting and load on the ups. just mesure the battery current in load condition .

back up time=(battery AH*0.85)/current in load condition

Gul Zaman
by Gul Zaman , Network Administration , vision technologies

My experience is only if we have a ups500VA with12v5a battery and tipicall computer with15 to18 Inch LED it proveds10 to15 minuts backup.

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