// multi-utility computation suite · offline · instant · precise
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eng.three-phase-delta-wye Calculator
Converts three-phase electrical impedances and voltages between delta (Δ) and wye (Y) configurations. Delta-wye conversion: Zy = ZΔ/3 — this is used in transformer analysis and power systems to simplify three-phase circuit analysis.
Inputs
Line Voltage V
Electric potential difference (V). Drives current through a circuit. Household: 120 V (US) or 230 V (EU/UK).
Load Resistance Ohm
Opposition to current flow (Ω). V = IR. Resistors in series add; in parallel their reciprocals add.
Connection
Reference formula or conversion factor shown for context.
Results
phase voltage V_ph (V)
Electric potential difference between the two terminals (V). In AC systems, quoted as RMS — 230 V mains has a peak of ~325 V.
phase current I_ph (A)
Electric charge flow rate (A). Governs wire sizing — too much current causes dangerous heating. Fuses protect circuits from overcurrent.
line current I_L (A)
Electric charge flow rate (A). Governs wire sizing — too much current causes dangerous heating. Fuses protect circuits from overcurrent.
total 3-phase power (kW)
The combined total across all inputs and components.