I have a very specific question regarding local made UPS for computers. I am assuming that we all know the basics of UPS available in local market. I am trying to build UPS for computers which could give 3 desktop computer systems and 2 laser printers full 9 hours of electricity.
As it is fact of life now that there is just nothing can be done about electric blow outs and load shedding so there is no use of bitching around about that I have just accepted it as part of life.
so the other sources of power left for me are generator and UPS in the absence of electric company electric.
generator is very costly to run on petrol given the oil prices and secondly its will be very expensive to maintain if in terms of mechanical maintenance if its ran for 9 hours on daily basis,
foreign UPS like APC and other chinese dry battery types are just too expensive for the purpose i want to use for. so they are out of question too.
NOW THE MAIN ISSUE: I know that the concept of regular home UPS and computer is the same only difference is the switching only
A: regular UPS switching has a slight delay in fraction of a second before it goes to battery power when regular electric goes out, well its ok for fans and lights but this delay is too long for computers and they get reset and boot all over again and any work on computers will be lost.
B: since computer UPS has ZERO DELAY SWITCHING of some sort so when UPS switches from electric company power to batteries computer stays on as they are getting continuous power.
bottom line is this I want to use our local ups with truck battery combination with if any for computer switching mechanism available locally made etc. any suggestion would be appreciated.