Energiamuuntajilla
Energiamuuntajilla is a Finnish term that translates to "energy transformers" or "power transformers" in English. This term refers to electrical devices designed to change the voltage of an alternating current (AC) electrical system. They operate based on the principle of electromagnetic induction. An energiamuuntaja typically consists of two or more coils of wire, known as windings, wound around a common ferromagnetic core. When an AC voltage is applied to one winding, called the primary winding, it creates a changing magnetic field in the core. This changing magnetic field then induces a voltage in the other winding, the secondary winding. The ratio of the number of turns in the primary and secondary windings determines the voltage transformation ratio. If the secondary winding has more turns than the primary, the voltage is stepped up, increasing the voltage. Conversely, if the secondary winding has fewer turns, the voltage is stepped down, decreasing the voltage. Energiamuuntajilla are crucial components in electrical power systems, enabling efficient transmission of electricity over long distances at high voltages and safe distribution at lower voltages for consumer use. They are also found in a wide array of electronic devices for voltage regulation and isolation.