What Is Reactive Power and Why Is It Important in Power Systems?
Learn what reactive power is, its role in power systems, equations, examples, and importance for stability.
What Is Reactive Power and Why Is It Important in Power Systems?
Reactive power is a critical concept in power systems, often overlooked but essential for the proper functioning of electrical networks. It plays a significant role in maintaining voltage stability and ensuring the efficient transmission of active power. This article delves into the definition, importance, and technical aspects of reactive power, along with detailed equations, examples, and analyses.
What Is Reactive Power? In an AC electrical system, power can be divided into three types: Active Power (P): The power that performs actual work, measured in watts (W). Reactive Power (Q): The power that oscillates between the source and load, measured in volt-amperes reactive (VAR). Apparent Power (S): The vector sum of active and reactive power, measured in volt-amperes (VA). Reactive power arises due to the phase difference between voltage and current, primarily caused by inductive and capacitive elements in the system. Inductive loads, such as motors and transformers, consume reac…
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…
