Lisävirran

Lisävirran, also known as auxiliary current, refers to an additional electrical current that is superimposed on the main current in a power system. This technique is commonly used in power transmission and distribution to improve the efficiency and reliability of the system. By adding a small, controlled current to the main current, lisävirran can help to reduce power losses, improve voltage regulation, and enhance the overall stability of the power grid.

The concept of lisävirran is based on the principle of reactive power compensation. Reactive power is a component of electrical power that does not perform any useful work but is necessary for the operation of inductive loads, such as motors and transformers. By injecting a small amount of reactive power into the system, lisävirran can help to balance the reactive power demand and supply, thereby reducing power losses and improving voltage regulation.

Lisävirran can be implemented using various technologies, including static var compensators (SVCs), static synchronous compensators (STATCOMs), and thyristor-controlled reactors (TCRs). These devices can be installed at strategic locations in the power grid to provide the necessary reactive power support and improve the overall performance of the system.

In summary, lisävirran is a technique used in power systems to improve efficiency and reliability by superimposing an additional electrical current on the main current. This technique is based on the principle of reactive power compensation and can be implemented using various technologies to provide the necessary reactive power support.