Primäärikäämille
Primäärikäämille refers to the primary winding of a transformer. A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction. It consists of two or more coils of wire, known as windings, wrapped around a common iron core. The primary winding is the coil that is connected to the input power source. When an alternating current flows through the primary winding, it creates a changing magnetic field in the iron core. This changing magnetic field then induces a voltage in the secondary winding, which is the other coil of wire. The ratio of the number of turns in the primary winding to the number of turns in the secondary winding determines the voltage transformation. If the primary winding has fewer turns than the secondary winding, the voltage is stepped up, and if it has more turns, the voltage is stepped down. The primary winding is crucial for initiating the electromagnetic induction process that allows a transformer to function. It is typically made of copper wire and insulated to prevent short circuits. The design and characteristics of the primary winding are vital for the overall efficiency and performance of the transformer.