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Мощность Фактор Калькулятор | Electrical Мощность Калькулятор

Рассчитать power factor (PF)

W
VA
Результат

Формула

PFPF = P ÷ S
AlsoPF = cos(θ)

Мощность Factor ranges from 0 to 1

Typical Мощность Factors

Load TypePF
Resistive (heaters)1.0
Fluorescent lights0.9-0.95
Induction motors0.7-0.85
Unloaded motors0.2-0.3

Связанные

Understanding Мощность Factor

Мощность factor measures how efficiently electrical power is converted into useful work. A PF of 1 (unity) means all power is used productively. Lower values indicate wasted power due to reactive loads.

Why Мощность Фактор Matters

Low power factor increases current draw, requiring larger wires and transformers. Utilities may charge penalties for industrial customers with low PF. Мощность factor correction capacitors can improve PF.

Часто задаваемые вопросы

A power factor of 0.9 or higher is considered good. Industrial facilities typically aim for 0.95 or above to avoid utility penalties.

Install power factor correction capacitors, use synchronous motors, avoid running motors under light loads, and replace old inefficient motors.