CalculatorLiveBuilt on Public Bid-Tab Price Book

Transformer Sizing and Cost

Load, voltage class and impedance to MVA, price band from the Bid-Tab Price Book and published lead time from the Monitor.

Free, no gateThe URL carries your inputs, so a link reproduces a scenarioDefaults from the Public Bid-Tab Price Book

Inputs

Required capacity–
Standard nameplate per unit–
Full-load secondary current–
Available fault current at secondary (infinite bus)–Ifault = IFL / Z. Real values are lower once source impedance is included.
Indicative price band, per unit–
Quoted lead time–
Bands as of 2026-09. Placeholder values until the tracker is live.

Method

Load, voltage class and impedance to MVA, price band from the Bid-Tab Price Book and published lead time from the Monitor.

Defaults come from the model named above. Every input is mirrored to the URL so a scenario can be shared as a link. Results are indicative; the model page states the sources and their dates.

Default assumptions come from the Public Bid-Tab Price Book. Pro subscribers can save inputs; Institutional seats get the underlying series.

Articles that use this calculator