The rotor core mounts on a steel shaft to form a rotor assembly. The wound rotor is another type of induction-motor-rotor construction. A major difference between the wound rotor motor and the squirrel-cage rotor is that the conductors of the wound rotor consist of wound coils instead of bars.
The 511 area code is NOT a valid area code. This area code is NOT officially assigned to a known Numbering Plan Area (NPA).
From Wikipedia, the free encyclopedia. Area code 515 is an area code serving most of north-central Iowa. It serves Des Moines, Ames, Ankeny, Humboldt, Boone, Fort Dodge, Jefferson, Algona and Indianola.he map to the right is clickable; click on any of the area codes on the map to go to the area code for that region. The metal band Slipknot named one of their songs 515 because the band is from Des Moines.