Vaihtovirtajärjestelmät
Vaihtovirtajärjestelmät, often abbreviated as AC systems, refer to electrical systems that utilize alternating current. Alternating current is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction. The key characteristic of AC is its sinusoidal waveform, where the voltage and current fluctuate between positive and negative maximum values over time.
The primary advantage of AC systems lies in their ability to be easily stepped up or down
In Finland, the standard mains voltage for household use is 230 volts, and the frequency is 50