Sekundärvarv

Sekundärvarv refers to the secondary winding in a transformer. A transformer consists of two or more coils of wire, known as windings, which are electrically separated but magnetically linked. The primary winding is connected to the alternating current source, and the secondary winding is connected to the load. When alternating current flows through the primary winding, it creates a changing magnetic field in the transformer core. This changing magnetic field then induces an alternating voltage in the secondary winding.

The ratio of the number of turns in the secondary winding to the number of turns in the primary winding determines whether the transformer is a step-up or step-down transformer. In a step-up transformer, the secondary winding has more turns than the primary winding, resulting in a higher output voltage. In a step-down transformer, the secondary winding has fewer turns than the primary winding, resulting in a lower output voltage. This voltage transformation is a fundamental principle behind the efficient transmission and distribution of electrical power. The concept of the secondary winding is crucial for understanding how transformers function and their widespread applications in various electrical systems, from power grids to small electronic devices.