Battery Sizing Calculation Report
As per IEEE 485
Report Date: 09-09-2024
Exide Reference: JKY02 Data Center
Customer Name: Microsoft
Project Reference: JKY02 Data Center
Calculation Parameters
Nominal System Voltage 110 Volt
Cable Drop 55.0 Volt
Calculated No. of Cells 55
Calculated ECV 1.6 Volt
Load Cycle
Period Load (Amp) Time (hh:mm:ss)
A0 137.73 00:01:00
A1 69.36 01:28:00
A2 137.0 00:01:00
Detail Sizing Calculations
Load Change in Duration of Time to End of Required Size Section Size
Period K-Factor
(Amp) Load (Amp) Period (sec) Section (sec) (AmpHr) (AmpHr)
Section-1
1 137.73 137.73 60.0 60 0.4371 60.2 60.2
Section-2
1 137.73 137.73 60.0 5340 2.1026666 289.6
2 69.36 -68.369995 5280.0 5280 2.0853333 -142.57 147.03
Section-3
1 137.73 137.73 60.0 5400 2.12 291.99
2 69.36 -68.369995 5280.0 5340 2.1026666 -143.76
3 137.0 67.64 60.0 60 0.4371 29.57 177.8
Calculation for Temperature Correction Factor
Design Temperature 27.0 deg C
Minimum Battery Room
14.0 deg C
Temperature
Correction Factor (%) 0.6
Temperature Correction Factor 1.078
Battery Selection
Maximum Section Size 177.8 AmpHr
Ageing Factor 1.25
Design Margin 1.1
Temperature Correction Factor 1.078
Estimated Cell Size 264.04 AmpHr
Cell Type Selected UPST 300
Suggested Battery System Configuration: 55 cell(s) of UPST 300
Disclaimer: This document should be confirmed in writing before finalisation of a contract.
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