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Answer Posted / trwer
See, Battery chargers are mainly useing for charging the
battery bank which is responsible for all control supply of
control systems such as breaker clossing coil, trip
coil,indications, protection relays, Annociators etc....
Mainly, If we are taking the supply from main, ( with
out battery back up)at the time of power failer /
breakdown how will record/ reccongnise the problem.
Secondly, Normaly we are using DC power for control.(
AC also using) for desired DC back up we can store the
supply in Battery. But inthe cause of AC how it
possible!!!!!
Moreover, in the cause control system, DC is more
efficient than AC
well, if any body can give another good answer, Most
welcome to Him. Because Knowledge is Power.....
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