Electrical / Electronics
Three-phase selection from user table
Selects the smallest entered section for a simplified balanced three-phase system.
Related calculators
Exact Iz lookup from user table
Looks up base ampacity Iz only for an exactly entered section in the user-supplied table.
Manual three-phase cable sizing check
Checks a balanced three-phase system with manually provided Iz, protective-device and voltage-drop data.
Theoretical three-phase voltage drop
Calculates simplified voltage drop in a balanced three-phase system from per-length parameters.
Three-phase voltage drop from resistivity
Helper calculation for simplified three-phase voltage drop from resistivity and area; it does not replace standards-based calculations.
Voltage drop percent
Converts voltage drop to a percentage of nominal voltage.
Three-phase current from active power
Calculates theoretical line current from active power, line voltage and power factor.