The construction of the core is different. Most 'core-type' three-phase Transformers have three limbs. Additionally, there are three sets of primary windings, and three sets of secondary windings.
Yes, there a difference between three phase and single phase electrical supply services.
Yes, there is a difference between single phase and three phase circuits.
No
single phase have 2 wire treephase have 3, and 4 wires
The difference between a single phase and a three phase motor is the amount of power conductors that feed the device. As to the other part of the question a three phase motor will not start or run on single phase. The phase angles on three phase are 120 degrees apart on a single phase system they are 180 degrees apart.
The difference between a single and a three phase online UPS is a 3 phase can supply a 100% unbalanced load on its output without affecting its performance. A single phase cannot supply a 100% unbalanced load on the output without affecting its performance.
The only real difference would be the inverter and panelboard, and yes, 3-phase inverters are more expensive than single-phase.
All current is the passage of electric charges from one terminal to another through a conductor so there is no real difference in the type of current that flows in a 3 phase system compared to a single phase system.
If, by 'unit price', you mean the cost per kilowatt hour, then there is normally no difference between the cost of energy supplied whether by single-phase or three-phase supplies.
actually there is no difference between them. However in some counteries, single phase is used for domestic and three phase is used for industrial.
> A eutectic transformation, in which a two component single phase liquid is cooled and transforms into two solid phases.> A peritectic transformation, in which a two component single phase solid is heated and transforms into a solid phase and a liquid phase.
Single phase.