Learn the difference between kW, kWh, kVA, and Power Factor with examples, calculations, applications, and FAQs. A complete professional guide.
Difference Between kW, kWh, kVA, and Power Factor
Understanding electrical units and power measurement is essential for engineers, electricians, and anyone involved in energy management. Terms like kW, kWh, kVA, and Power Factor are commonly used but often confused. This article provides a detailed explanation of these terms, their differences, practical applications, examples, and calculations. 1. Introduction to Electrical Power Electrical power is the rate at which electrical energy is transferred by an electric circuit. It is fundamental in electricity generation, distribution, and consumption. To manage and optimize energy usage, we need clear understanding of the units that represent power and energy. The four terms we will discuss are: kW (Kilowatt) – Real power kWh (Kilowatt-hour) – Energy consumed kVA (Kilovolt-ampere) – Apparent power Power Factor – Ratio of real power to apparent power 2. What is kW (Kilowatt)? kW represents real power in an electrical circuit. Real power is the actual power that performs useful work such as lighti…
About the author
Prasun Barua is a graduate engineer in Electrical and Electronic Engineering with a passion for simplifying complex technical concepts for learners and professionals alike. He has authored numerous highly regarded books covering a wide range of elec…
