leakageinduktanssi

Leakage inductance is a concept in electromagnetism related to transformers and inductors. It arises from the fact that not all magnetic flux produced by a coil will link with other coils in a transformer or with the core of an inductor. The portion of the magnetic flux that does not link with the intended circuit is called leakage flux. The inductance associated with this leakage flux is known as leakage inductance.

In an ideal transformer, all magnetic flux produced by the primary winding would link with the secondary winding and vice versa. However, in real transformers, there will always be some magnetic flux that escapes and does not link with the other winding. This leakage flux is influenced by the physical construction of the transformer, such as the geometry of the windings, the distance between them, and the presence of magnetic shielding.

Leakage inductance has several practical implications. In power transformers, it can affect voltage regulation, especially under heavy loads, and can contribute to losses. It can also influence the transient response of circuits containing transformers. For inductors, leakage inductance is an undesirable parasitic effect that can limit the inductor's performance at higher frequencies by creating alternative paths for magnetic flux. Minimizing leakage inductance is often a design goal in applications where precise magnetic coupling or high-frequency performance is critical. The amount of leakage inductance can be controlled through careful design of the winding configuration and core geometry.