UPS battery Back time = no.of Batteries * Ah of the Battery /
output KVA * 130 ? what is the 130 means ? can any one help?
because all are using this formula how its came 130?
Answer Posted / k.prakashchandra
Ah*voltage /1000=stored energy in Kwh = back up time in
hours * load in KW. Here instead of load, rating of
inverter is given in Kva. So with load at 65% 0f inverter
rating or at 65% of stored energy, the above formula nearly
holds good
| Is This Answer Correct ? | 5 Yes | 3 No |
Post New Answer View All Answers
STATE USE OF ARC RUNNERS & SPLITTERS ?
Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box
Swg formulae
how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!
As an electrical engineer what are the responsibilities which i can hold in TCS?
How to calculate Voltage regulation of 22 KV Over head Line.
In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?
What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?
to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????
Differentiate between ideal and non ideal current sources?
how we select ac fuse rating of an power inverter???
What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?
how many Classification of fire extinguisher
how braking & making capacity of circuit breaker are calculated?
The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.