if 11 lead acid batteries each 200 amph are connected in series so that combinly they can produce 110 volts dc. question is how much backup it can provide ? 2) how can we calculate that how much amprere and voltage is required to charge them . thanks in advance !

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why mccb is not tripping when phase & neutral terminal are interched ?

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How to calculate load requirement of a 50 flat apartment with 5 kw each unit,sizing of cable,transformer

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Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks

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what are the breakdown voltage rating of mini- curcuit'transfarmer!

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How many no. of earthing pits required for commisioning a new 320KVC DG Set????How????

6 Answers   Emerson,

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why core is useful for a transformer ?and also in its operation ?

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how can calculate resistance box for 15 kw, 6 pole, RV-230, RA-42 motor

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In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?

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How many methods use the load flow solution?

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Difference between field rheostat and armature rheostat.

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1.WHAT IS A SMART CAPABLE DB ( DISTRIBUTION BOX) ? 2. HOW TO DECIDE THE TYPE OF DB TO BE USED ( RECESSED/ PLUG TYPE/ SMART ETC ETC? 3. WHAT IS MILLENEUM BUS BAR USED IN DB? 4.DIFFERENTIATE MCCB AND MCB.

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