Why battery chargers are use in substation?

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.....

Is This Answer Correct ?    1 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

will there be any problem by recovering slip from single phase induction motors?

1413


in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

2129


What are the different types of hydro schemes?

644


WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?

1694


how can calculation ate Amps for cabel. Ex-for 1sqmm wire hou many amps we can draw

1961






How the over load setting for HT Motors calculated-provided in Numerical Relay

1164


why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?

1365


How Can you do Maintenance of ACB of 2000Amperes

1622


what is feeder bay?

1085


What is minimum phase system?

644


What is the formula to calculate the no load current of a single & three phase induction motor

1739


why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?

2199


i completed my DEEE. and i want to electrical c license. how to get it..?

1672


Classify drilling machines.

654


How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15

2726