Your files stay on your device

Transformer kVA size

Size a distribution transformer from connected load through diversity, power factor, growth, and target loading, snapped to standard ratings.

Enter a connected load to size the unit.

Every stage is shown so the assumption driving the pick stays visible. What this does not do: no derating for ambient temperature, altitude, harmonics, or cyclic loading; no fault level, inrush, or protection grading. Run those checks separately before committing to a frame. Insulation life is also thermally sensitive: as a rule of thumb it halves for every 6 to 8 K of extra winding hot-spot temperature, which is what the target loading number is really buying.
Options

More unit & math tools

- 4-20 mA scaling (/converters/4-20ma-scaling-calculator)
- 555 timer calculator (/converters/555-timer-calculator)
- Unit converter (/converters/units)
All unit & math tools (/converters)

Was this tool useful?
YesNo

Canonical HTML: https://nutter.tools/converters/transformer-kva-calculator
Markdown version: https://nutter.tools/converters/transformer-kva-calculator.md
Plain-text version: https://nutter.tools/converters/transformer-kva-calculator.txt
Agent index: https://nutter.tools/llms.txt