Circuits: 3-Phase Analysis

Circuits is a free, interactive tool for analyzing 3-phase AC circuits. Built for electrical engineering students and professionals who need quick, accurate results.

TAP. ENTER. CALCULATE.
Tap any component on the interactive circuit diagram to enter values in rectangular or phasor form. Press Calculate to get complete results instantly.

ALL FOUR CONFIGURATIONS
Y-Y (Wye-Wye)
Y-Delta (Wye-Delta)
Delta-Y (Delta-Wye)
Delta-Delta (Delta-Delta)
COMPLETE ANALYSIS

Source, line, and load voltages
Line and phase currents
Neutral current (Y-Y)
Per-phase and total power (S, P, Q, PF)
Interactive phasor diagram

FLEXIBLE INPUT
Balanced or unbalanced sources and loads
Positive, negative, or custom phase sequences
Source impedance, line impedance, and neutral impedance
Rectangular (a + jb) or phasor (Mag angle) entry

PRIVACY FIRST
Runs entirely on your device. No account, no tracking, no data collection. Your values never leave your phone.