🔋 IEEE 485 (125V/250V DC Duty Cycle, 8-Hr Standby + Trip/Close Inrush Ah)

Substation Battery Bank Sizing Calculator

Size stationary lead-acid (VRLA / Flooded Plante) and nickel-cadmium battery banks for electrical substations and power plants under IEEE 485: calculate continuous standing DC loads (SCADA, protection relays), momentary breaker trip/close inrush currents (40-100A pulses), aging factor (1.25 for 80% EOL), temperature derates, and DC backup power profits.

1. Project & Operating Inputs

Substation Battery Banks Installed (Bank Count e.g. 4 125V DC Racks)

Total Required Battery Capacity (Ampere-Hours Ah e.g. 400 Ah 8-Hr Rate)

Customer Bid Price for Supplied & Racked DC Battery System ($ / Bank)

Enersys/C&D 2V Lead-Calcium Cells, Seismic Racks, SCR Charger & Tech ($)

2. Financial Breakdown & Yield

IEEE 485 SUBSTATION DC BATTERIES

Turnkey Substation Battery Skid Profit

DC Power Systems Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost