What is battery Amphere-hour? How the battery back up time
period is calculated?
Answers were Sorted based on User's Feedback
Answer / mahavir jagdev
The battery is rated in ampere-hour. It means either "X" NOS OF AMPERE CURRENT WILL BE DELIVERED FOR "Y" NUMBER OF HOURS BEFORE IT GETS DISCHARGED , so the ampere-hours will be XxY.
The back up time will depend on the load applied to the battery in terms of watts/kws ....... amp-hrs divided by watts
Is This Answer Correct ? | 7 Yes | 0 No |
Answer / shivaleela
Ampere Hour=(Watts/DC Voltage)*(1/Inv.Efficiency)*
(1/Batt.Efficiency)*No.of Hours
Ex:W=500W V=12V Inv eff.=0.9 Batt.eff=0.7 Time=1hour
Then Ah=(500/12)*(1/0.9)*(1/0.7)*1
=66.13
It means for 1 hour backup we can use 65Ah Battery for
500W/12V Inverter.
Similarly,for 2 hours Ah=65*2=130Ah
Is This Answer Correct ? | 7 Yes | 1 No |
what is ferranti effect?
how we can calculate power factor without knowing current in 230v 100w load ?
how does capacitor oppose sudden chane in voltage? how does inductor oppose sudden change in current?
4 Answers AAA, Iqra University,
define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.
HOW TO IDENTIFY THE RELAYS WHICH APPLICATION IN WHICH RELAY USING
415v 14kw so can u tell me how i can measure the cable size.then size of the earth also
how to measure winding resistance of single phase motor?
which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant
hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?
A MACHINE WHICH HAVE 1000rpm SPEED IS LARGER IN SIZE AS COMPARED TO THAT OF A MACHINE WHICH HAVE 1500rpm.WHY ?
Why Neutral Isolation is required?
wat is the current produced in a 5000v megger? when the positive and negetive terminals are touched on our body get s shock?