kuorimuuntaja

A kuorimuuntaja, also known as a core transformer or shell-type transformer, is a type of electrical transformer. The fundamental principle of operation for any transformer, including a kuorimuuntaja, is electromagnetic induction, where an alternating current in one coil (the primary) induces an alternating current in another coil (the secondary) through a shared magnetic field.

The key distinguishing feature of a kuorimuuntaja lies in its magnetic core construction. Unlike other transformer designs, such as the core-type transformer, the windings of a kuorimuuntaja are wound around the central limb of a laminated iron core. The core itself typically consists of E and I shaped laminations that are stacked to form a closed magnetic circuit. This arrangement places the windings on the inner section of the core, with the magnetic flux primarily flowing through the central limb and returning through the outer limbs.

Kuorimuuntaja transformers are commonly used in various power distribution and industrial applications. Their design offers advantages in terms of mechanical strength and insulation properties. The winding placement can also contribute to reduced leakage flux, which can improve efficiency. While the term "kuorimuuntaja" is specific, it refers to a broad category of transformer construction that is widely employed in electrical engineering. The specific number of turns in the primary and secondary windings determines the voltage transformation ratio, allowing for the stepping up or stepping down of voltage levels as required by the application.