Single Phase VS Three Phase
Used in most homes. Able to supply ample power for most smaller customers, including homes and small, non-industrial businesses
Adequate for running motors up to about 5 horsepower; a single-phase motor draws significantly more current than the equivalent 3-phase motor.
making 3-phase power a more efficient choice for industrial applications
With the wave form of single-phase power, when the wave passes through zero, the power supplied at that moment is zero. In the U.S., the wave cycles 60 times per second
Three phase power
Common in large businesses, as well as industry and manufacturing
Increasingly popular in power-hungry, high-density data centers
Expensive to convert from an existing single-phase installation, but 3-phase allows for smaller, less expensive wiring and lower voltages.
making it safer and less expensive to run highly efficient for equipment designed to run on 3- phase.
Three phase power has 3 distinct wave cycles that overlap. Each phase reaches its peak 120 degrees apart from the others so the level of power supplied remains consistent.