Re: 220 volts
Because of the phases being off 120 degrees, there is no need for start windings or capacitors to shift the electricity to start the motor,
Originally Posted by Handidad
There reversible by switching any of two of the three leads,
Many times the power rate structure is cheaper for three phase which is usually considered industrial in use.
The electrical system is balanced.
I believe the the starting torque is greater,
you many times have smaller conductors to carry the same amount of power, and some times you step up to higher voltages so the wire size would be small for the same power carrying capacity of single phase,
Last edited by BHD; 01-28-2009 at 10:53 AM.
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