Having discussed four regions/countries in the eastern hemisphere where 19 of the projects are located, we turn to the opposite side of the world for the remaining project. One World Trade Center Tower (see Figure 13), in New York, is set to become the tallest building in the western hemisphere in 2013.
There is no difference. 'Star' and 'wye' are alternative names for the same connection. Similarly, 'delta' and 'mesh' are alternative names for the same connection.plit and merge into it. Answer by Awaygood. Confidence votes 22.5K. There is no difference. A three-phase ' star ' connection is simply another name for a ' wye ' connection. 'Star' seems to be the preferred name in Britain, whereas, 'wye' seems to be the preferred name in North America-although this is debatable.
In wye-connected systems, the line voltage (line-to-line) is 1.732 times larger than the phase voltage (line-to-neutral). In a delta-connected system the line voltage is exactly the same as the phase voltage (line-to-line in both cases).he delta connection provides three line conductors, whereas the star connection provides three line conductors plus a neutral conductor. To obtain a single-phase supply, the load is connected either between any two line conductors, or between a line conductor and a neutral conductor.