Why
Alternating Current cannot be stored in Battery
Banks ?
When we
connect a battery with AC Supply, then It will charge during positive half
cycle and discharge during negative half cycle because the Positive (+ve) half
cycle cancel the negative (-Ve) half cycle, so the average voltage or current
in a complete cycle is Zero. So there is no chance to store AC in the
Batteries.
Also, We
cannot store Alternating Current in batteries because AC changes its polarity
upto 50 (When frequency = 50 Hz) or 60 (When frequency = 60 Hz) times in a
second. Therefore the battery terminals keep changing Positive (+ve) becomes
Negative (-Ve) and vice versa, but the battery cannot change their terminals
with the same speed so that’s why we can’t store AC| in Batteries.
Also when
we connect a battery with AC Supply, then It will charge during positive half
cycle and discharge during negative half cycle because the Positive (+ve) half
cycle cancel the negative (-Ve) half cycle, so the average voltage or current
in a complete cycle is Zero. So there is no chance to store AC in the
Batteries.
Also note
that Average Voltage x Average Current ≠ Average Power.