Engineering Tools

Practical calculators and analysis tools for power systems work.

Base Quantity Calculator

Derive base current, impedance, and admittance from S_base and V_base.

Physical-to-Per-Unit Impedance Calculator

Convert R, L, C values to per-unit using base quantities and frequency.

Per-Unit Base-Change Calculator

Convert per-unit impedance values between different power and voltage bases.

Surge Impedance Loading (SIL) Calculator

Calculate characteristic impedance and SIL for lossless and lossy transmission lines.

Fault Current Calculator

Calculate symmetrical fault currents.

Coming soon

Transformer Impedance Calculator

Convert transformer impedances between bases.

Coming soon

Cable Ampacity Tables

Reference ampacity data for common cable types.

Coming soon