How to know the back up time for a 5KVA UPS which is
connected to 15 nos. of computers? Is there any formula for
this? pls. tell me.
Answer Posted / k.prakashchandra
Back up time is dependent on storage capacity of
battery.vxAH=stored energy in watt hours. Divide this by
load in watts to get back up time in hours.If the batteries
are in parallel add up AH.If in series, AH of one battery is
to be considered adding voltages. Use identical batteries.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
In power transmission using open belts or horizontal shafts it is preferable to have the slack side of the belt on the top because
How to design a Unit auxiliary transformer for a power house having a unit of 65 MW and Generating voltage of 11 KV and Secondary voltage of 433V
1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve
how does a shunt reactor maintains the bus voltage???
how the aircraft outer body and inner body is separated ?
What Is HO factor in power selection
what is upper impedance and lower impedance of a distance relay
What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?
how to compare with Relay settings for HT< panels, RMU panel, and PSS CSS transformer?? 1) Load amps, 2)Tripping time, 3) CT ratio, 4)Cable size 5) Transformer KVA rating 6) transformer full load amps
If I want to lift the water at a height 50m from ground level through two inch(diameter) metal pipe then what is the capacity of motor pump is required? is it possible in single phase supply or not?
What is the function of under voltage release ?
which book to refer in electrical engineering for iocl exam & which book for general english.
What are the main advantages of generalized error co-efficients?
we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???
75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?