A practical calculation toolkit for power engineers, covering the core relationships used in balanced and unbalanced system analysis.
The tool combines six modules: per-unit conversion and change of base, the impedance triangle and transformer test-report split (%R and %X), single- and three-phase power and current, first-order three-phase fault levels, and symmetrical-component decomposition. Each result displays the formula applied, and a Learn tab covers the underlying theory.
Results are intended for educational and preliminary planning use; verify against the applicable IEEE, IEC, and ANSI standards before relying on them in design.
