Linjanollajännitteen

Linjanollajännitteen, often translated as line-neutral voltage, refers to the voltage difference measured between a specific phase conductor (line) and the neutral conductor in an electrical power distribution system. This is a fundamental measurement in understanding the operational parameters of single-phase and some three-phase systems.

In a typical single-phase system, there are two conductors: the line (or hot) and the neutral. The linjanollajännitteen is the voltage that drives current through connected loads, such as household appliances. It is the nominal voltage provided by the utility company, for example, 230 volts in many European countries.

In a three-phase system, linjanollajännitteen is specifically the voltage between one of the three phase conductors and the neutral conductor. This is distinct from the phase-to-phase voltage, which is the voltage between any two of the three phase conductors. The phase-to-neutral voltage is typically lower than the phase-to-phase voltage in a balanced three-phase system, with the phase-to-phase voltage being approximately √3 times the phase-to-neutral voltage.

Monitoring linjanollajännitteen is crucial for ensuring the safe and efficient operation of electrical equipment. Deviations from the nominal voltage, whether too high or too low, can lead to malfunction, overheating, or premature failure of appliances. Electrical safety regulations often specify acceptable voltage tolerance ranges.