What is the multiplier used to determine 3 phase voltage?

The multiplier used to determine 3 phase voltage is based on the relationship between line voltage and phase voltage in a three-phase electrical system. In a balanced three-phase system, the line voltage is equal to the phase voltage multiplied by the square root of 3 (approximately 1.73). This relationship arises from the geometry of the three-phase voltage waveforms which are 120 degrees apart.

When you need to convert from phase voltage to line voltage, you multiply the phase voltage by this factor. This is crucial in applications such as calculating voltage requirements for motors or determining the specifications for wiring and equipment in three-phase systems. Understanding the use of this multiplier helps ensure proper design and efficient operation of electrical systems.