💨 Cooling Boost (ONAN to ONAF / AA to FA Boost, +33% kVA Capacity, Fan Stages)

Transformer Forced-Air Cooling (FA) Calculator

Size forced-air cooling auxiliary fan arrays (Krenz & Company / Qualitrol) providing Stage 1 and Stage 2 supplemental cooling for dry-type (AA to FA) and liquid-immersed (ONAN to ONAF) substation transformers: boost continuous kVA thermal load capacity by +33% to +50% during peak heatwaves, and transformer upgrade profits.

1. Project & Operating Inputs

Self-Cooled Base Rating (kVA e.g. 2,000 kVA Base Self-Cooled AA/ONAN)

Winding Temperature Trigger (°C e.g. 85.0°C Fan Start Setpoint)

Customer Bid Price for Supplied & Mounted Fan Cooling Package ($)

Krenz Fan Array, Winding Temperature Controller, Magnetic Starters ($)

2. Financial Breakdown & Yield

FORCED-AIR FAN COOLING

Turnkey Transformer Cooling Retrofit Profit

Substation Thermal Capacity Upgrade Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost