vaihtovirrakäyttöinen

vaihtovirrakäyttöinen is a Finnish term that translates to "AC-powered" or "alternating current powered." It describes a device or system that operates using alternating current as its primary energy source. Alternating current is an electric current that periodically reverses direction, in contrast to direct current (DC), which flows in only one direction.

Many electrical appliances and industrial equipment are designed to run on AC power because it can be easily transformed to different voltage levels. This is crucial for efficient transmission of electricity over long distances, as higher voltages are used for transmission to minimize energy loss, and then stepped down to safer, usable voltages for homes and businesses.

Devices that are "vaihtovirrakäyttöinen" typically connect to the mains electrical supply, which in most countries provides AC power. This includes common household items like lamps, televisions, refrigerators, and washing machines, as well as larger machinery in factories. The internal workings of these devices convert the incoming AC power into the specific form of energy required for their operation, which may involve direct current for electronic components or mechanical energy for motors. The term emphasizes the external power source rather than the internal power conversion methods.