What is the standard voltage carried by each phase in a 3-phase supply?

In a 3-phase electrical supply, the standard voltage carried by each phase can vary based on the specific system and country. In many residential and light commercial applications in the United States, the standard voltage for each phase in a 3-phase supply is typically 120 volts when considering a 120/240 volt split-phase system.

This is commonly found in North American electrical systems, where two phases are used to supply 240 volts, and each individual phase provides 120 volts as a standard voltage level. This configuration allows efficient use of power for various applications, including lighting and smaller appliances.

The 3-phase system offers advantages such as greater efficiency and the ability to carry more power compared to single-phase systems. When creating a supply with three phases, each one carries 120 volts, effectively increasing the overall power capacity available for use.

Understanding the phase voltage in a 3-phase supply helps in designing, troubleshooting, and maintaining electrical systems, making it essential knowledge in the field of electrical work.