Category: Instantaneous Water Heater
General
Importance: star_ratestar_ratestar_ratestar_ratestar_rate
Difficulty: star_ratestar_ratestar_ratestar_ratestar_rate
Answer:
Three-phase power supply refers to three sets of alternating current with equal amplitude, equal frequency and phase difference of 120°. It is produced by a three-phase generator with three windings and is common for industrial use as it can provide electricity of a few kilowatts or above.