A 3-phase power source can be produced by rotating a magnetic field through three sets of coils arranged how many degrees apart?

A 3-phase power source utilizes three sets of coils to generate alternating current in a way that ensures smooth and continuous power delivery. The coils are arranged in a manner that allows their magnetic fields to be 120 degrees apart from each other. This configuration is critical because it allows the system to maintain a consistent power output while maximizing efficiency.

Each coil is energized in sequence, providing a continuous flow of power as one coil reaches its peak output while the others are in different phases of their cycles. By spacing the coils at 120 degrees, each phase can provide power at a different point in the cycle, effectively ensuring that there are always some phases delivering power, which helps in reducing fluctuations and enhancing performance in industrial applications.

If the coils were spaced differently, such as 90 degrees or 180 degrees, the power delivery would be inconsistent, leading to a variety of operational issues and inefficiencies in the power system. In simpler terms, 120 degrees is the optimal spacing for creating a stable and effective 3-phase power system.