What is Reactive Power and Why is it Important?

In our daily lives and in industry, we need “Electrical Energy” as the most basic power source to operate many devices. However, not all of the energy we use produces useful work.

In our daily lives and in industry, we need “Electrical Energy” as the most basic power source to operate many devices. However, not all of the energy we use produces useful work. A portion of this energy, particularly in AC (Alternating Current) systems, is allocated to a component known as “reactive power” which does not directly convert into useful work. In electrical systems, reactive power, which arises from the phase difference between voltage and current, is typically generated by inductive loads such as motors and transformers.

Types of Reactive Power

Reactive power is divided into two main groups:

·         Inductive Reactive Power (Positive): It occurs in devices with inductive properties such as motors, transformers, and industrial fans.

·         Capacitive Reactive Power (Negative): It is produced by capacitor banks, long underground cables, or certain electronic devices.

Problems Caused by Reactive Power

Reactive power, which is not directly seen as energy loss in electrical systems, causes problems in both financial and technical aspects:

·         Low power factor: It causes more current to be drawn from the grid.

·         Cable and transformer loads: Overheating and capacity losses occur in transmission lines.

·         Penalties on energy bills: Electricity distribution companies penalize reactive energy consumption above certain limits.

·         Efficiency losses: Production capacity in factories, workshops, or commercial businesses indirectly decreases.

Reactive Power Compensation

We refer to the process of balancing inductive and capacitive loads as reactive power compensation. The methods used in this field are as follows:

·         Capacitor banks: Balance inductive reactive power.

·         Reactors: Balance capacitive reactive power.

·         Automatic compensation panels: Dynamically engage according to load changes.

·         SVC (Static Var Compensators): Provide reactive power compensation at medium and high voltage levels.

·         SVG (Static Var Generators): Optimize energy quality by quickly and accurately correcting voltage imbalances.

·         Active Power Quality Solutions (AHF): Used for filtering harmonics and improving power factor.

Common Misconceptions

“Reactive power is harmful” → False. 

Reactive power is necessary for motors to operate, but excessive amounts can cause harmful effects.

“Installing capacitors is always the solution” → False.

Improperly sized or improperly positioned capacitors can disrupt the system rather than improve it.

aHa Teknoloji’s Solutions

At aHa Teknoloji, we offer smart compensation systems that eliminate reactive energy problems for businesses from both a technical and financial perspective. Whether it’s a small workshop or a large industrial facility, we make your system efficient, reliable, and penalty-free with our customized design and extended warranty period.

If you want to increase your energy efficiency and eliminate reactive power penalties, contact us today.