vaihejännitteen

Vaihejännitteen refers to the voltage of a single phase in a polyphase electrical system. In a three-phase system, for example, there are three alternating voltages that are out of phase with each other. Vaihejännitteen is the voltage measured between one of the phase conductors and the neutral conductor, or in some cases, between two phase conductors if the neutral is absent or not used as a reference. This is in contrast to linjajännite, which is the voltage between two phase conductors. The relationship between vaihejännitteen and linjajännite depends on the configuration of the system, typically a star (wye) or delta connection. In a star-connected system, the linjajännite is approximately $\sqrt{3}$ times the vaihejännitteen. Understanding vaihejännitteen is crucial for designing, operating, and troubleshooting electrical power systems, as it dictates the voltage supplied to individual loads connected to a single phase. Different regions and applications may specify different standard vaihejännitteen values. For instance, in residential settings, a common vaihejännitteen might be around 230 volts.