What happens to reactive supply as voltage increases?

Reactive supply is closely related to voltage levels in a power system. As the voltage increases, particularly in an AC system, the ability to supply reactive power also increases. This relationship can be understood through the concept of voltage regulation and the nature of reactive power.

In electrical systems, reactive power (measured in VARs) can be thought of as the power that oscillates between the source and reactive components (like inductors and capacitors) in the circuit. When voltage rises, the reactive power capacity often increases proportionally to the square of the voltage (V²). This is because reactive power is influenced by voltage in a way that emphasizes its squared relationship; that is, a small increase in voltage can lead to a larger increase in the reactive power supplied or absorbed.

This phenomenon is essential in maintaining voltage stability within the system, as higher voltage levels can enhance the capability of generators and capacitors to produce reactive power, which is crucial for supporting the transmission of real power across distances and maintaining overall system voltage levels.

The other options presented do not accurately reflect the relationship between voltage and reactive power. For example, stating that reactive supply has no correlation with voltage ignores the crucial dependency that reactive power has on voltage levels. Similarly, the idea that it decreases