Thirty five lead acid cells each of discharge capacity 120 Ah at 12 hours rate are to be fully charged at a constant current for 10 hours. The DC supply is 125 V, the ampere hour efficiency is 80% and the e.m.f. of each cell at start and at the end of the charge is 1.9 V and 2.6 V respectively. Calculate the maximum value of external resistance necessary. Neglect internal resistance of the cell.

Thirty five lead acid cells each of discharge capacity 120 Ah at 12 hours rate are to be fully charged at a constant current for 10 hours. The DC supply is 125 V, the ampere hour efficiency is 80% and the e.m.f. of each cell at start and at the end of the charge is 1.9 V and 2.6 V respectively. Calculate the maximum value of external resistance necessary. Neglect internal resistance of the cell.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.2P: The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where...

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