Interested to Buy Any Domain ? << Click Here >> for more details...
Why we use DC for charging of Batteries??Why not AC
Supply???
- 6 Answers
- 21974 Views
- Emerson, Infosys, I also Faced
- E-Mail Answers
Answer Posted / ratan nura
In AC supply, both voltage and current have a sinusoidal nature i.e. voltage changes from 0-V and V-0 for positive cycle and 0 to -V and -V to 0 for negative cycle. the same happens for the current.
Charging of a battery requires a constant current
I > the output current of the battery. If the value of current keeps changing (i.e from 0-I,I-0, 0 to -I, -I to 0), the free electrons in the electrodes get released in the liquid alkali solution and energy is stored inside the battery as chemical energy for positive cycle. But for the negative cycle, the free electrons inside the battery accumulate in the electrodes thus charging the AC supply, i.e. in negative cycle the terminal voltage of the battery is equal to battery supply voltage + AC supply voltage. This can be dangerous for the battery as it may get neutralized and further charging becomes impossible.
Hence DC source is used for charging the battery and not AC.
Note : Charging of a battery depends on the source voltage and not current. source with excessive current can burn the battery or it may explode. So for this purpose current is kept as low as possible...
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
what is 3rd Harmonics? how it is generated in alternator
What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.
what is the principle of operation of CFL ??
what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please
i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good
why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?
how to check three phase motor torque value?
What is voltage ratio of a transformer?
how to apply b license to c license in tneb
Discuss the effect of sudden loading of an induction motor
What is the basic of DTH.
Explain RLC circuit?
In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?
draw the restricted earth fault protection circuit install on power transformer and identify its parameters and draw C/C curve of it
what is the grounding Calculation formula? spouse i want to provide grounding to 3phase 18kw motor or i want to provide ground to 3phase 10kva dry type transformere or you give me any exemple...... Thanks.
