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Why we can’t store AC in Batteries instead of DC?

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Question ajoutée par Ali Waqas Bhatti , Electrical Engineer , Lakson Group of Companies
Date de publication: 2015/02/28
M Khawer Riaz
par M Khawer Riaz , Electrical & Instrumentation Jobs , Unilever Pakistan Limited

Dc voltage are constant which store the charges consistently.But Ac voltage is changing its polarity at every cycle which can produce charge /discharge in every cycle.thats whly we used Dc instead of AC.

Omar Hayat
par Omar Hayat , Senior Electrician , Bestway Cement

Frequency can not be stored  

ali asif
par ali asif , Executive Sales Engineer , Shirazi Trading Compny

because in AC there is continuous change of polarity which is not possible in real life with static storage.

Taofeek Ibraheem
par Taofeek Ibraheem , Electrical tecnician , Bel Papyrus Limited

bcs A.C moves in a sinusoidal form, and also, A.C is not generated chemically

kundan singh
par kundan singh , Trainer , airvoice engineering solution

bcz Ac runs w.r.t hence it cant be stored.

Khadim Hussain
par Khadim Hussain , Superintendent (Electrical) , Orient Energy Systems Pvt Ltd

Because batteries are direct current (DC) power source having fixed negative and positive terminal which cannot be change. To store power in it we have to pass a direct current in reverse direction. While AC current changes its direction every time. so in it half cycle it will store power in it but in remaining half cycle it will drain the battery and cause of short circuit with two sources in series.  

 

Safi Ullah
par Safi Ullah , Electrical Trainee Engineer , PESCO (Peshawar Electric Supply Company)

We cannot store AC in batteries because AC changes their polarity up to50 (When frequency =50 Hz) or60 (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.

Leonardo Banzali
par Leonardo Banzali , Electrical Maintenance-trainer , Sadara Chemical Company

AC voltage is always generated from magnetic induction of generators otherwise it can be produced electronically through an Inverter from a DC supply like batteries.

Muhammad Sabir
par Muhammad Sabir , Instrumentation & Control Mentainer , Karachi Power Plant (KANUPP)

For storing something it's very important that each additional unit Increases the total units of that thing,  that's why in this case it is very important  to use DC against AC, because in DC the polarity remains same/constant or defined that's why we use DC for storage against AC.

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