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Uch fazali motor quvvati kalkulyatori

Calculate active power P = √3 × V × I × cos φ × η for three-phase motors. Bidirectional — solve for any variable. Also shows apparent & reactive power.

IEC 60034 Bidirectional Power Triangle
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Results

Active Power P
To'liq quvvat S
Reactive Power Q
Line Current I
Quvvat koeffitsienti / FIK

Uch fazali quvvat formulasi

The active (real) power consumed or delivered by a three-phase AC circuit is:

  • P — active power (W or kW)
  • VL — liniyadan liniyaga kuchlanish (V)
  • IL — liniya toki (A)
  • cos φ — quvvat koeffitsienti (0–1)
  • η — motor foydali ish koeffitsienti (0–1)

Power Triangle

Where S to'liq quvvat (kVA), P is active power (kW), and Q is reactive power (kVAR).

Amaliy Misol

Misol — 400 V da 15 kW motor

Given: P = 15 kW, V = 400 V, cos φ = 0.85, η = 0.91

I = P / (√3 × V × cos φ × η) = 15000 / (1.732 × 400 × 0.85 × 0.91) = 28.0 A

S = √3 × V × I = 1.732 × 400 × 28.0 = 19.40 kVA

Q = √(S² − P²) = √(19.40² − 15²) = 12.30 kVAR

💡 Tip: Motorning nominal mexanik chiqish quvvatidan elektr kirish quvvatini hisoblashda, har doim FIK η ga bo'ling. Tavsiyanomadagi kW odatda val (mexanik) chiqish quvvatidir.

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A reliable **three phase motor power calculator** is an essential tool for electrical engineers and technicians who need to quickly determine active, apparent, and reactive power values without performing manual computations. By inputting known parameters such as line voltage, line current, power factor, and efficiency, this three phase motor power calculator applies the standard formula P = √3 × V × I × cos φ × η to deliver accurate results in seconds. Its bidirectional functionality allows you to solve for any unknown variable, making it invaluable for motor sizing, load analysis, and energy auditing tasks.

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