AboutWill Expertise Three phase electic motors, controls and related problems or failures, three phase motor installation issues, performance issues, connections, data and duty cycle information. All other electic motors. Specialty motors, repair concerns, performance concerns, obsolete motors and solutions. Other specialty equipment issues. Lost nameplate data and identification, lost connection data.
Also DC motors of all types.
See my profile under Home/electrical at this site
Experience 30 plus years in the electrical motor and apparatus repair industry. VP level management of repair facilities, current owner of my own specialty repair and consulting firm.
Organizations EASA, IBEW [retired], other specialty organizatons, Lubrication, Vibration EDI, Triboelectric Councils
Publications Currently fielding concerns at this site under "Home Electrical"
Education/Credentials 4 year technical, College level specific courses, EASA repair courses, vibration analysis electronic and electrical trade school.
Expert: Will Date: 5/15/2008 Subject: 3 Phase motor
Question What does 3 phase motor means and how do you hook one up to a 480 volts. and also are they always ac or dc.
Answer Paul,
Wow I could send you four hundred pages on that, good question and you got a lot in few words, so the short answer is this:
3 phase is generally considered industrial power where three lines are all hot, where home or residential is single phase, where one line is hot and the other ground
To wire up 480 three phase, you need a motor or other apparatus rated for 480 three phase and the utility has to supply a three phase supply to where ever the apparatus will go, not all locations are available for three phase, a residential neighborhood might not have three phase available,
As to ac or dc, 480 three phase is always AC.
Have you run into something 480 you want to try and run? If so let me know what it is, and there are converters we can talk about.
