Yksifaasijännite

Yksifaasijännite, often translated as single-phase voltage, refers to the standard alternating current (AC) voltage found in most household and small-scale electrical systems. It is characterized by a single sinusoidal voltage waveform that varies over time. This type of voltage is supplied through a system typically consisting of two conductors: a live wire and a neutral wire. The potential difference between these two wires creates the voltage that powers appliances and devices.

The frequency of single-phase voltage varies by region, with common frequencies being 50 Hz in Europe and many other parts of the world, and 60 Hz in North America. The voltage level also differs, with common household voltages being around 230 volts in Europe and 120 volts in North America. For higher power demands within a single-phase system, two live wires might be used in conjunction with a neutral wire, providing a higher voltage between the two live conductors, though it remains a single-phase system. This differs from three-phase voltage, which utilizes three separate alternating voltage waveforms, offset in phase from each other, and is commonly used for industrial machinery and larger power distribution networks due to its greater efficiency and power delivery capabilities.