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DigiCalcs

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Analyzes three-phase AC power systems used in industrial applications. Calculates power, current, and relationships between phases.

الصيغة

Line voltage = phase voltage × √3

دليل خطوة بخطوة

  1. 1Three sinusoidal voltages 120° apart
  2. 2Line voltage = phase voltage × √3
  3. 3Line current = phase current (Y-connection) or √3 × phase current (delta)
  4. 4Power = √3 × V × I × PF

أمثلة محلولة

الإدخال
Line voltage 480V
النتيجة
Phase 277V

أخطاء شائعة يجب تجنبها

  • Confusing line voltage with phase voltage
  • Applying single-phase formulas to three-phase

أسئلة شائعة

Why is three-phase used in industry?

More efficient power distribution, smaller cables, smoother motors, better line utilization.

What's Y vs. delta connection?

Y (star): common on supply side, neutral available; delta: high voltage, no neutral.

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الإعدادات