Quvvat koeffitsientini tuzatish nima?

Power factor correction (PFC) is the process of adding capacitors to an electrical system to reduce reactive power demand and bring the power factor closer to unity (1.0). This reduces current draw, lowers losses, and avoids utility penalties.

Zarur kondensator hajmini qanday hisoblayman?

Qc = P × (tan φ1 − tan φ2), where P is active power in kW, φ1 = arccos(PF_current), φ2 = arccos(PF_target). The result Qc is in kVAR. For capacitance in μF: C = Qc × 10⁹ / (2π × f × V²).

Qanday maqsadli quvvat koeffitsientiga erishish kerak?

Ko'pchilik energiya ta'minotchilari jarimalarsiz ishlash uchun PF ≥ 0.90 talab qiladi. 0.95–0.98 maqsadli qiymati tavsiya etiladi. 1.0 dan oshib ketishga (ilgari ketuvchi PF) yo'l qo'ymang, chunki bu kuchlanish ko'tarilishi va rezonans muammolariga olib kelishi mumkin.

Quvvat koeffitsientini tuzatishning qanday afzalliklari bor?

Benefits include: reduced electricity bills (avoiding reactive power charges), lower current in cables (freeing capacity), reduced I²R losses, improved voltage regulation, and compliance with utility requirements.

Qattiq yoki avtomatik kondensator batareyalaridan foydalanishim kerakmi?

Qattiq batareyalar doimiy yuklamalar uchun mos keladi (masalan, yagona katta elektrodvigatel). Kontaktorlar va PF regulyatori bilan jihozlangan avtomatik batareyalar o'zgaruvchan yuklamalar uchun qulay — ular maqsadli PF ni saqlab turish maqsadida kondensator bosqichlarini ulab-uzib turadi.

Muhandislik uchun bepul vosita

Quvvat Koeffitsienti Tuzatish Kalkulyatori

Calculate required capacitor bank kVAR and μF to improve power factor. Qc = P × (tan φ₁ − tan φ₂).

kVAR Sizing Capacitor μF Power Triangle

Active Power P (kW)

Joriy quvvat koeffitsienti (cos φ₁)

Maqsadli quvvat koeffitsienti (cos φ₂)

System Voltage (V, liniyadan liniyaga)

Frequency (Hz)

Kondensator ulash sxemasi

Quick presets

Results

Talab qilingan kondensator batareyasi

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Har bir faza bo'yicha sig'im

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Current Before (S₁ / I₁)

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Tuzatishdan keyingi tok (S₂ / I₂)

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Tokning kamayishi

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Reactive Power Compensation

μF dagi sig'im

Misol — 100 kW yuklanma, PF 0.75 → 0.95

tan φ₁ = tan(acos 0.75) = 0.8819, tan φ₂ = tan(acos 0.95) = 0.3287

Qc = 100 × (0.8819 − 0.3287) = 55.3 kVAR

⚠️ Note: Birlik quvvat koeffitsientidan (ilgari lagging) oshib ketmasin. Bu kuchlanishning ko'tarilishiga, transformatorlar bilan rezonansga va uskunalarning shikastlanishiga olib kelishi mumkin.

Quvvat koeffitsientini tuzatish kalkulyatori | Bepul kVAR & μF vositasi

Published by Nikolai Shelkovenko on Fevral 15, 2026 Aprel 5, 2026

Results

Reactive Power Compensation

μF dagi sig'im

Do'kon

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