In a three-phase system, what is the phase angle between each phase?

In a three-phase system, the phase angles between each of the phases are critical for the proper functioning of electrical machinery and power distribution. Each phase in a three-phase system is separated by an angle of 120 degrees. This 120-degree spacing helps to ensure that the phases balance out each other's loads, providing a stable and efficient power delivery system.

When voltage waveforms of each phase are represented in time, they are positioned such that one phase reaches its peak voltage 120 degrees after the previous phase. This arrangement allows the three phases to work together harmoniously, distributing electrical loads evenly and resulting in a constant power supply. It also helps in creating a rotating magnetic field in motors, which is essential for their operation.

The other options do not reflect the proper phase relationships found in a standard three-phase system, as 60 degrees would imply a more compressed waveform structure, while 90 degrees and 180 degrees do not align with the fundamental principles of three-phase power systems.